Term
| Corpora spongiosum located... |
|
Definition
| Around the penile urethra, also composed of erectile tissue -- becomes corpus spongiosum in penile urethra. |
|
|
Term
| Corpora cavernosa composed of and located... |
|
Definition
| Composed of erectile tissue (endothelium lined caverns, connective tissues, smooth muscle) surrounded by tunica albuginea, divided by median septum. Dorsal lateral to urethra. |
|
|
Term
| Glans penis well developed in.. |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| Endothelium lined caverns of various sizes in pelvic urethra. |
|
|
Term
| Tunica muscularis in urethra transitions as... |
|
Definition
| Smooth muscle in bladder vicinity, then to striated in remainder of urethra. |
|
|
Term
| Division of ovary in most mammals? Exception? |
|
Definition
| Outer cortex, inner medulla. Reversed in mares. Cortex contains follicles, corpora lutea, loose CT. Medulla with blood vessels, nerves, lymphatics. |
|
|
Term
|
Definition
| Primary oocyte surrounded by simple squamous epithelium of follicular cells. |
|
|
Term
|
Definition
| Composed of primary oocyte surrounded by simple cuboidal epithelium of follicular cells. |
|
|
Term
|
Definition
| Composed of primary oocyte surrounded by a stratified epithelium termed granulosa cells. Secrete zona pellucida around plasma membrane. |
|
|
Term
| In late secondary cells what develop around granulosa cells? |
|
Definition
| Theca cells, a vascularized multilayer of spindle-shaped stromal cells. |
|
|
Term
| Tertiary (Mature or Graafian) Follicles.. |
|
Definition
| Development of fluid filled clefts among granulosa cells that eventually form the large fluid cavity known as the antrum that contains liquor folliculi. |
|
|
Term
| Mature follicle just before or after ovulation.. |
|
Definition
| Completes first meiotic division (in some species, others wait until contact with sperm) |
|
|
Term
|
Definition
| The group of granulosa cells that the oocyte lies in after the antrum enlarges and displaces the oocyte. Later they will provide the "bridge" from the primary oocyte to the surrounding granulosa cells. |
|
|
Term
|
Definition
| The granulosa cells immediately surrounding the oocyte. |
|
|
Term
| In mature follicles the theca differentiates into what two layers? |
|
Definition
An inner vascular theca interna.
An outer supportive theca externa. |
|
|
Term
|
Definition
| Steroid secreting cells with abundant smooth endoplasmic reticulum, mitochondria, numerous lipid droplets. |
|
|
Term
|
Definition
| Thin layer of loose CT with fibrocytes arranged concentrically. |
|
|
Term
|
Definition
Luteinizing hormone (LH) secreted by what?
And pressure of antral fluid.
LH secreted by anterior pituitary gland. |
|
|
Term
| Follicles that are not ovulated... |
|
Definition
| Undergo follicular atresia. These atretic follicles are reabsorbed aside from a small tissue scar known as corpus atreticum. |
|
|
Term
| Interstitial endocrine cells in ovaries... |
|
Definition
Only in bitch or queen:
Arise from epitheloid theca interna cells (or hypertrophied granulosa cells of atretic follicles) polyhedral, contain lipid droplets. |
|
|
Term
| Corpus hemorrhagicum is.. |
|
Definition
| Right after ovulations, rupture follicle -- blood in antrum. |
|
|
Term
Large luteal cells from?
Small luteal cells from? |
|
Definition
In corpus luteum the granulosa cells to large luteal..
The theca cells to small luteal. |
|
|
Term
| Process of granulosa and theca cells converting into luteal cells.. |
|
Definition
| Luteinization. Due to hypertrophy and hyperplasia of both cell types. |
|
|
Term
|
Definition
| Yellow lipid pigment that accumulated in luteal cells. ABSENT in the ewe, goat, sow. |
|
|
Term
|
Definition
| Polygonal and are steroid-synthesizing. Lots of sER and mitochondria. |
|
|
Term
| Small luteal cells structure... |
|
Definition
| More lipids, less steroid synthesizing types of organelles. You can't actually distinguish between the two very well. BOTH produce progesterone. |
|
|
Term
| Corpus luteum without fertilization.. |
|
Definition
| Slowly degenerates and replaced by CORPUS ALBICANS. |
|
|
Term
| If fertilization does occur, the corpus luterum.. |
|
Definition
Will persist and be active for a variable amount of time. Some species it is required throughout the pregnancy.
In the MARE accessory corpus luteums will form! |
|
|
Term
|
Definition
Rete ovarii are present - remnants homologous to rete testis - networks of irregular channels that may differentiate into follicular cells.
The medulla has blood vessels, nerves, lymphatics, loose CT, smooth muscle strands. |
|
|
Term
| Divisions of uterine tube (oviduct, fallopian tube)... |
|
Definition
| Infundibulum, ampulla, isthmus.. |
|
|
Term
|
Definition
Highly folded, lines by simple columnar or pseudostratified columnar epith. with motile cilia. Some nonciliated lining cells are secretory.
Propia-submucosa is loose CT with plasma cells, mast cells, eosinophils.
Mostly circular smooth muscle bundles, few longitudal/oblique.
Tunica serosa with blood vessels, nerves. |
|
|
Term
|
Definition
| Bilateral horns, unpaired body and cervix. Cervix also known as neck. |
|
|
Term
|
Definition
Endometrium (mucosa-submuscosa).
Myometrium (musclaris).
Perimetrium (serosa). |
|
|
Term
|
Definition
Lined by simple columnar (patches of psedustratified in cow and sow).
Coiled tubular glands present throughout that secret mucus, lipids, glycogen, protein -- except those who have CARUNCLES (ie. ruminants). |
|
|
Term
|
Definition
| Nonglandular circumscibed thickenings of endometrium. Rich in fibrocytes, lots of blood supply. Only in ruminants. |
|
|
Term
| Unique structure in endometrium of the mare? |
|
Definition
| Endometrial cups, present in early pregnancy due to densely packed uterine glands. |
|
|
Term
|
Definition
| Thick circular inner layer and outer longitudinal layer. Stratum vasculare between two layers of smooth muscles. |
|
|
Term
|
Definition
| Muscosal plug formed in pregnancy by mucigenous cells. |
|
|
Term
| Epithelium of the cervix... |
|
Definition
Simple columnar with many mucigenous cells (including goblet cells) with secrete muscus during estrus.
Also, mucosa-submucosa is highly folded. |
|
|
Term
| What type of fibers present in inner circular layer of cervix? |
|
Definition
| Elastic, important in reestablishing the cervical structure after parturition. |
|
|
Term
| Epithelium of the vagina... |
|
Definition
Highly folded mucosa lined by stratified squamous epithelium. Thickens during estrus.
In the bovine isolated foci of goblet cells in cranial portion. |
|
|
Term
| Propia-submucosa of vagina has.. |
|
Definition
| Dense irregular CT, containing lymphatic nodules. |
|
|
Term
| Tunica muscularis of vagina.. |
|
Definition
Inner circular, outer longitudinal layer.
In SOWS and BITCHES an additional thin layer of longitudinal located inside circular. |
|
|
Term
| Vestibular wall differs from the vagina in that.. |
|
Definition
| More subepithelial lymphatic nodules. |
|
|
Term
|
Definition
| Erectile corpus cavernosum beneath vestibular mucosa -- in mares and bitches. |
|
|
Term
|
Definition
| Compound tubuloalveolar mucous glands in propiasubmucosa of vestibule. |
|
|
Term
|
Definition
Homologous to male penis.
Folds of integument that form vulva. |
|
|
Term
|
Definition
Period of FOLLICULAR GROWTH.
Endometrial proliferation, increased vascularization. |
|
|
Term
|
Definition
| Ovulation occurs, lots of endometrial proliferation and edema present. |
|
|
Term
|
Definition
Development of corpus luteum.
Endometrial gland hyperplasia. |
|
|
Term
|
Definition
Phased of active corpus luteum under progesterone influence.
If pregnancy does not occur the corpus luteam regresses and converts to corpus albicans. |
|
|
Term
|
Definition
DuctLESS glands. The paranchmatous cells close contact with capillaries and secrete HORMONES directly into tissue spaces which then reach circulatory system.
Organs they go to are target organs. |
|
|
Term
| Hypophysis also known as... |
|
Definition
|
|
Term
|
Definition
ADENOhypophysis.
(Pars distalis, pars intermdia, pars tuberalis.)
NEUROhypophysis. |
|
|
Term
|
Definition
In PARS DISTALIS.
Secrete SOMATOTROPES -- growth horomone or somatotrophin.
Lactotrophs or prolactin cells. |
|
|
Term
|
Definition
In PARS DISTALIS..
Thyrotropes - TSH - thyroid gland to release thyroxine.
GONADOTROPHS -- FSH and LH.
CORTICOTROPHS -- Adrenocorticotropic hormone -- ACTH on Adrenal Cortex. |
|
|
Term
|
Definition
In PARS DISTALIS.
Most chromophobic cells considered to be temporarily resting degranulated chromophils. |
|
|
Term
|
Definition
Of the ADENOHYPOPHYSIS...
Seperated from pars distalis by hypophyseal cleft .. associated with neurohypophysis.
MELANOTROPES -- surround colloid filled follicles. MSH secretion. |
|
|
Term
|
Definition
Part of ADENOHYPOPHYSIS..
Consists of clusters of epithelial cells that form small follicles. Peptide secreting cells subject to seasonal variation.
Few gonadotrophs/thyrotrophs present. |
|
|
Term
Neurohypophysis..
Hypothalamo-neurohypophyseal system... |
|
Definition
Composed of SUPRAOPTIC and PARAVENTRICULAR nuclei..
Large neuronal bodies with neurosecretory granules..
Production of OXYTOCIN, VASOPRESSIN, ANTIDIURETIC HORMONE (ADH). |
|
|
Term
| Axons of hypothalamo-neurohypophyseal system.. |
|
Definition
| Neurosecretory granules transported by these acons of the hypothalamo-neurohypophyseal tract to the neural lobe.. release into parivascular space of sinusoidal capillaries. |
|
|
Term
|
Definition
| Enlarged axon terminals containing neurosecretory granules. |
|
|
Term
|
Definition
| Modified astrocytes ... glial cells of neurohypohysis which form network around axons and capillaries. |
|
|
Term
| Thyroid gland structure... |
|
Definition
| Thin capsula of dense irregular CT, divided into lobules... |
|
|
Term
| Lobules of thyroid gland have... |
|
Definition
| Thyroid follicles, parafollicular cells, dense network of sinusoidal capillaries. |
|
|
Term
| In middle of thyroid follicles? |
|
Definition
Filled with colloid and lined by follicular cells.
When resting colloid is dense surrounded by low cuboidal.
When stimulated cuboidal and dissolved colloid. Secretes thyroid hormones. |
|
|
Term
|
Definition
Of the thyroid gland.. can form groups of cells outside follical, or occur singly in basal lamina of follicle.
Secrete CALCITONIN which LOWERS blood calcium level.
(Less bone resorption.) |
|
|
Term
| Parathyroid Gland structure... |
|
Definition
Surrounded by dense irregular CT capsule.
Parenchyma highly vascularized, arranged in clusters/cords. |
|
|
Term
| Cell types of parathyroid gland.. |
|
Definition
Light inactive principal cells.
Dark active principal cells.
Oxyphilic cells in HORSE and LARGE RUMINANTS.. unknown function.
Transitional cell type between principal and oxyphilic cells. |
|
|
Term
| Function of parathyroid gland? |
|
Definition
| Parathormone -- maintains calcium and phosphorus levels in blood. |
|
|
Term
| Adrenal gland structure... |
|
Definition
Surrounded by thin CT capsule ...
Parenchyma in OUTER cortex and INNER medulla. |
|
|
Term
|
Definition
In three zones..
Zona glomerulosa in RUMINANTS (zona arcuata in others).
Zona fasculata.
Zona reticularis. |
|
|
Term
|
Definition
as in ruminants -- irregular clusters and cords of cells..
ZONA ARCUATA in horse, pig, carnovires.
Produce ALDOSTERONE - mineralocorticoids. |
|
|
Term
| Zona fasciculata and zona reticularis. |
|
Definition
Fasciulata - radially arranged cords of cuboidal/columnar cells, lipid droplets.
Reticulars - irregular cords network.
Involded in production of GLUCOCORTICOIDS ...
Protein, fat, carb metabolism. |
|
|
Term
|
Definition
Irregular cords and clusters, separated by sinusoidal capillaries.
Called CHROMAFFIN cells. Parasymphathetic ganglionic cells may occur amongst chromaffin cells. |
|
|
Term
|
Definition
Two types ...
One has stronger reaction to chromaffin and secretes NORepinephrine. Others have less affinity and secrete epinephrine.
Both released under physical and psychological stress. |
|
|
Term
|
Definition
Endocrine function of pancreas. Arranged in irregular anastomosing cords and have 5 different cell types.
A, B, C, D, and heterogenous population of granulated cells.
The latter considered precursors to cells that produce various gastro-enteropancreatic hormones... inhibit intestinal motility and bile secretion. |
|
|
Term
|
Definition
Of pancreatic islets..5-30%..
Secretory granules INSOLUBLE in alcohol. Indented nucleus.. brilliant red stain in Mason's or Gomori's.
Secrete GLUCAGON (increase blood sugar). |
|
|
Term
|
Definition
60-80% of pancreatic islet cells..
Soluble in alcohol.
Produce INSULIN (drop blood sugar level)..
Absence/insufficiency results in diabetes mellitus. |
|
|
Term
|
Definition
| Immature precursor cells to other types of cells. Nongranulated. |
|
|
Term
|
Definition
Rare.. produce SOMATOSTATIN..
Inhibitory of secretion of glucagon (A cells) and insulin (B cells). |
|
|
Term
| Structure of (SS-K) epidermis. |
|
Definition
Stratum basale -- single layer of cuboidal or columnar cells on basal lamina.
Stratum spinosum -- layers of polyhedral cells w/desmosomes.
Stratum granulosum.
Stratum lucidum.
Stratum corneum.
Stratum disjunctum. |
|
|
Term
| Stratum basale + stratum spinosum.. |
|
Definition
|
|
Term
|
Definition
| Several layers of flattened cells having keratohyalin granules. |
|
|
Term
|
Definition
Occurs only in non-hairy skin.
(eg. foot-pad) |
|
|
Term
|
Definition
| Consists of dead, keratinized cells. Contain protein, keratin. |
|
|
Term
|
Definition
| Most superficial layers of stratum corneum that undergo constant desquamation. |
|
|
Term
| What are melanocytes? Where are they? |
|
Definition
| Producers of melanin which gives color to skin and hair. Located amongst stratum germinativum. |
|
|
Term
|
Definition
| Superficial papillary and DEEP reticular. |
|
|
Term
| Papillary layer of dermis? |
|
Definition
Superficial... consists of loose CT.
Fine collage, elastic, reticular fibers. Fibrocytes, mast cells, plasma cells, macrophages. |
|
|
Term
| Reticular layer of dermis? |
|
Definition
| DENSE irregular CT... deep to papillary layer. Lots of collagen fiber bundles. |
|
|
Term
|
Definition
| Traversed by blood vessels, lymph vessels and nerves. Smooth muscles in specialized areas (eg. scrotum, penis, teats). Skeletal muscles of cutaneous trunci penetrate dermis and allow voluntary movement of skin. |
|
|
Term
|
Definition
Deep to dermis, consists of loose arrangement of collagen and elastic fibers.
Adipose tissue is present in small clusters or large mass of fat called PANNICULUS ADIPOSUS. |
|
|
Term
|
Definition
Covers entire body aside from foot-pad, hoof, glands penis, etc.
Flexible keratinized structure produced by hair follicle.
Above surface of skin is shaft.
Within follicle is root. |
|
|
Term
|
Definition
| 3 layers. Cuticle, cortex, medulla. |
|
|
Term
|
Definition
| Hair shaft single layer of flat keratinized cells. |
|
|
Term
|
Definition
| A layer of dense compact keratinized cells with long axis parallel to hair shaft. Pigment granules present. |
|
|
Term
| Medulla of the hair shaft.. |
|
Definition
| Forums the center of hair and is loosely filled with cuboidal or flattened cells. In the root is it solid but in the shaft air vacuoles occur among cells. |
|
|
Term
| Specifies specific part of hair shaft? |
|
Definition
Pattern surface of the cuticle with cellular arrangement of medulla.
Medicolegal purposes. |
|
|
Term
|
Definition
Internal root sheath.
External root sheath.
Hair matrix.
Dermal papilla.
Arrector pilli muscles. |
|
|
Term
|
Definition
Of the hair follicle.
Has internal root sheath cuticle - overlapping keratinized cells..
Granular epithelial layers..
Pale epithelial layer. |
|
|
Term
|
Definition
Of the hair follicle..
Composed of several layers of cells similar to stratum spinosum. Covered by glassy membrane.. entire epithelial sheath enclosed by CT sheath. |
|
|
Term
|
Definition
| Like germinativum cells.. give rise to soft form keratinized cells to form the hair shaft. |
|
|
Term
|
Definition
Of hair follicle..
It is the CT below the hair matrix that receives blood and nerve supply. |
|
|
Term
|
Definition
| Associated with most hair follicles. bundles of smooth muscles attached to CT sheath and connect to papillary layer of dermis. ANS control. |
|
|
Term
| Sinus/tactile hair follicles... |
|
Definition
| They're specilized hairs and have a blood-filled sinus between the inner and outer layer of the dermal sheath. Skeletal muscle attachment to outer sheath. Lots of nerve bundles in dermal sheath. |
|
|
Term
| Sebaceous glands ... associate with what to form the what? |
|
Definition
Associate with hair follicles which empty to form PILOSEBACEOUS canals.
In hairless areas empty directly onto surface of the skin. |
|
|
Term
| Sebaceous glands release secretory product by what method? |
|
Definition
|
|
Term
| Sweat glands are in two types... |
|
Definition
(Sudoriferous glands...)
They are APOCRINE or MEROCRINE. |
|
|
Term
| Apocrine sudoriferous gland.. |
|
Definition
Apocrine sweat glands are simple coiled tubular glands. Large lumen with flattened cuboidal/low columnar.
Located through most of skin in most domestic animals. |
|
|
Term
| Merocrine sudoriferous glands.. |
|
Definition
Merocrine sweat glands are simple tubular.
Found in footpads of dogs and cats, bovine planum nasolabiale and carpal glands of swine. |
|
|
Term
| Mammary gland -- what type of gland? |
|
Definition
|
|
Term
|
Definition
| In secretory stage columnar cells containing fat droplets and membrane bound vesicle are filled with micelles of milk protein. They release into lumen and enlarge lumen. |
|
|
Term
|
Definition
| Contract due to oxytocin and cause letdown of milk. |
|
|
Term
| Duct system of the mammary gland.. |
|
Definition
INTRAlobular - simple cuboidal
INTERlobular - strat. cuboidal
LACTIFEROUS sinus - strat. cuboidal
TEAT SINUS/Papillary Duct - strat. squamous. |
|
|
Term
|
Definition
| Hard karatin.. in horses, ruminants, pigs. |
|
|
Term
| Cornual horns? Claws, nails? |
|
Definition
| Hard keratin.. cornual horns in ruminant, claws/nails in dog, cat. |
|
|
Term
| Digital pads of dog and cat.. |
|
Definition
| Highly keratinized hairless epidermis. Coiled merocrine glands in dermis and subcut. masses of adipose.. collagen and elastic fibers. |
|
|
Term
| Chestnut and ergot composed of? |
|
Definition
| Tubular and intertubular horn. |
|
|
Term
| Three general layers of the eye.. |
|
Definition
Fibrous tunic..
Vascular tunic..
Nervous tunic. |
|
|
Term
| Fibrous tunic of the eye parts.. |
|
Definition
|
|
Term
|
Definition
| White layer of dense irregular CT. |
|
|
Term
|
Definition
Anterior epithelium (non-keratinized strat. squa.)
Subepithelial basement membrane, substantia propia..
Posterior limiting membrane -- highly refractile thick BM).
Posterior epithelium. |
|
|
Term
|
Definition
The choroid -- highly vascularized layer and is composed of dense network of blood vessels embedded in heavily pigmented CT.
The dorsal half of the eyeball has tapetum lucidum which contain crystalline rods.
Ciliary body is rostral continuation of choroid. |
|
|
Term
|
Definition
| Composed of highly vascular CT, pigmented epithelium. |
|
|
Term
| Nervous Tunic -- how many layers? |
|
Definition
Also known as retina...
TEN layers..
Pigment epithelium, photoreceptive layer -- rods and cones.
External limiting membrane.
Outer nuclear layer.
Outer plexiform layer.
Inner nuclear layer.
Inner nuclear layer.
Ganglionic cell layer.
Optic nerve fiber layer.
Internal limiting. |
|
|
Term
|
Definition
Contains lens capsule, lens epithelium, lens fibers.
Older animals have clouding -- cataracts. |
|
|
Term
|
Definition
| Tubulo-alveolar. Predominantly serous in ruminants, cats... seromucous in dogs... |
|
|
Term
|
Definition
External - Auricle and External Auditory Canal.
Middle .. malleus, incus, stapes.. tympanic cavity and auditory tube.
Internal -- bony and membraneous labryinth. |
|
|
Term
| Three auditory ossicles.. |
|
Definition
|
|
Term
Filling of..
bony labyrinth?
membranous labyrinth? |
|
Definition
PERIlymph in BONE (bp)
ENDOlymph in membranous (mn) |
|
|
Term
|
Definition
| Part of membranous ampulla of each semicircular duct .. composed of sensory epithelium. |
|
|
Term
| Utricle and Saccule have? |
|
Definition
| Macula utriculi and macula succuli.. sensory epithelium. |
|
|
Term
| Responsible for balance / vestibular mechanism? |
|
Definition
| Cristae ampullaris, macula utriculi, macula succuli. |
|
|
Term
| Cells of the spiral organ (organ of Corti)? |
|
Definition
For hearing --
sensory cells, supportive cells, afferent and efferent nerve terminals..
and a tectorial membrane. |
|
|
Term
| Difference of avian trachea? |
|
Definition
| Cartilaginous rings are complete -- more intraepithelial glands. |
|
|
Term
|
Definition
| At junction of trachea and bronchi -- inverted Y. Tympanic mebranes for sound production. (SSE). |
|
|
Term
| Airway path in bird lung? |
|
Definition
Primary bronchi to
Secondary bronchi to
Parabronchi to
Atria to
Air capillaries. |
|
|
Term
| Primary bronchi detaisl.. |
|
Definition
| Pseudostratified, ciliated, goblet cells, diffuse lymph tissues. |
|
|
Term
| Hyaline cartilaginous rings in initial portions of primary bronchi but replace with? |
|
Definition
|
|
Term
| Secondary bronchi details. |
|
Definition
Simple columnar to cuboidal.. no goblet cells.
No lymphatic tissue.
Interrupted muscularis and NO cartilage. |
|
|
Term
|
Definition
Cuboidal epithelium. Atria branch off and give to air capillaries.
Atria lined by simple squamous. |
|
|
Term
|
Definition
Most birds have EIGHT. Unpaired cervical, clavicular. Paired cranial and caudal thoracic, abdominal.
Lined by simple squamous or cuboidal -- no gaseous exchange. |
|
|
Term
|
Definition
Diffuse lymphatic, kSSe, all salivary glands are branched tubular mucous.
Tongue has entoglossal bone.
No teeth. |
|
|
Term
|
Definition
| Keratinized, diffuse lymph.. |
|
|
Term
|
Definition
Sac like diverticulum of esophagus. Similar histologically to esophagus.
Storage and secretion of crop gland -- crop milk (desquamated lipid-laden cells) fed to nestling. |
|
|
Term
|
Definition
| Glandular proventriculus and muscular ventriculus -- aka gizzard. |
|
|
Term
|
Definition
Macroscopic papillae around duct opening of glands. Clumnar cells into cuboidal.
Oxynticopeptic cells produce pepsin and hydrochloric acid. |
|
|
Term
| Ventriculus (gizzard) details. |
|
Definition
Ventriculus responsible for grinding ingesta.
Lined by cuticle. Columnar surface epith. |
|
|
Term
| Small intestine of avian.. |
|
Definition
| Similar to mammal. Large amounts of diffuse and nodular lymph tissue. No duodenal glands. |
|
|
Term
|
Definition
| Two ceca present. Large masses of diffuse and nodular tissue infiltrate -- cecal tonsils. Proximal part has villi. |
|
|
Term
|
Definition
C U P
Coprodeum
Urodeum
Proctodeum |
|
|
Term
|
Definition
| Mucosa of vent is highly folded, kSSe, striated muscle of tunica muscularis forms sphincter. |
|
|
Term
|
Definition
Diverticulum of proctodeum.
Folds called plicae -- lots of lymphoid follicles.
Lined by pseudostrat columnar.
Organ of immune system -- B-lymph differentiation
Also known as Fabricius. |
|
|
Term
| Kidney location in birds? |
|
Definition
| Extend cranially up to lung and caudally down to end of synsacrum. |
|
|
Term
|
Definition
| Cranial, middle, caudal parts. Two types of nephrons. Cortical type devoid of medullary loop of Henle. Medullary type has medullary loop. |
|
|
Term
| Avian male testis details.. |
|
Definition
Very thin tunica albuginea, no lobulation, no mediastinum testis.
Epididymmis is smaller and the efferent ductules extend along whole length. No differentiation of head, body, tail. |
|
|
Term
| Avian accessory sex glands (male)... |
|
Definition
| No homologous structures to mammal.. some birds caudal end of ducts deferens forms seminal glomus which is a storage organ for spermatazoa. |
|
|
Term
|
Definition
The phallus.
Mounted on crest of ventral lip of vent.
Median phallic body and pair of lateral phallic bodies.
Papillae of ducts deferens empties into median groove, travels down ventral tip of phallus. |
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Term
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Definition
LEFT side develops only.
Ovaries not compact, medulla not well developed.
Antrum does not develop, nor does corpus luteum. |
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Term
| Oviducts of avian.. parts.. |
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Definition
| Infundibulum, magnum, isthmus, shell gland (uterus) and vagina. |
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Term
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Definition
| Funnel like cranial extension. Highly folded. Pseduostrat ciliated. |
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Term
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Definition
| Responsible for deposition of majority of egg white. Columnar cells. Release of albumin. |
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Term
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Definition
| Shell MEMBRANE. Columnar epithelium. |
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Term
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Definition
| The SHELL gland. Responsible for egg shell and dilution of albuminoids. Pseudostrat columnar, intermittently ciliated. Coiled tubular glands. |
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Term
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Definition
Short mucosal folds.. pseduo columnar, ciliated, some goblet cells.
Sperm host glands to nourish and store sperm. |
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Term
| Ductus deferens epithelium type? |
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Definition
Psueostratified columnar .. simple columnar towards end of duct.
Three muscular layers. |
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Term
| Species lacking ampulla.. |
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Definition
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Term
| Species lacking vesicular gland.. |
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Definition
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Term
| Species lacking prostate (body). |
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Definition
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Term
| Species lacking prostate (pars disseminata). |
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Definition
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Term
| Species lacking bulbourethal gland.. |
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Definition
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Term
| Parts of prostate gland.. |
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Definition
Compact part (body) -- surrounds pelvic urethra.
Disseminate part in propia submucosa of pelvic urethra. |
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