Shared Flashcard Set

Details

Basic Cell Recognition
Basic Cell Types- general histology
60
Histology
Graduate
08/02/2016

Additional Histology Flashcards

 


 

Cards

Term
simple cuboidal epithelium location
Definition
small ducts of exocrine glands
surface of ovary
kidney tubules
thyroid follicles
Term
simple columnar epithelium location
Definition
lining of GI system
lining of gallbladder
some large ducts
Term
stratified cuboidal epithelium location
Definition
sweat glands and ducts
larger ducts of exocrine glands
Term
stratified columnar epithelium location
Definition
largest ducts of exocrine glands
Term
pseudostratified columnar epithelium location
Definition
lining of trachea, bronchi, nasal cavity, ductus deferens, parts of epididymis
Term
transitional epithelium definition
Definition
stratified epithelium found only in parts of renal system ; able to distend
Term
transitional epithelium location
Definition
urethra, bladder, ureters, renal calyces
Term
exocrine gland
Definition
product is secreted via ducts onto external or internal epithelial surface
Term
endocrine gland
Definition
product is secreted into bloodstream or lymphatics

no ducts
Term
what makes up 40-45% of total blood volume
Definition
erythrocytes make up what percentage of blood volume?
Term
what makes up 1-2% of total blood volume
Definition
leukocytes and platelets make up what percentage of total blood volume
Term
what organelles do erythrocytes lose?
Definition
nucleus, golgi apparatus, centrioles, ER, most mitochondria
Term
reticulocytes definition
Definition
less mature erythrocytes
(for about 2 days after released from bone marrow into circulation)
Term
neutrophil characterization
Definition
prominent nucleus segmented into 2-5 lobes;
most numerous of WBCs in adult (about 50-75% of peripheral WBCs)
Term
neutrophil purpose / definition
Definition
first line of defense against microorganisms (BACTERIA)

active phagocytes ; empty azurophilic granules to kill ; activated oxygen species form ; lysozyme destroys cell wall of gram positve bacteria
Term
bone marrow will release more neutrophils in response to what?
Definition
bacterial infection, tissue necrosis
Term
eosinophil characterization
Definition
bilobed nucleus (occasionally 3 or 4 lobes)
Term
number of eosinophils high when...
Definition
allergies or parasitic infections
Term
basophil characterization
Definition
stain deep purple so it is hard to see nucleus b/c of granules' stain

least numerous WBC in peripheral blood
Term
what are the granulocytes?
Definition
neutrophils, eosinophils, basophils
Term
monocyte characterization
Definition
largest cell in peripheral blood
large nucleus that is usually kidney or horseshoe-shaped
nucleoli sometimes seen
Term
monocyte function
Definition
differentiate into macrophages or tissue histiocytes
ingest particulate matter, tissue debris, infectious agents
Term
lymphocyte characterization
Definition
single, deeply-stained spherical nucleus (sometimes with slight indentation)
Term
hematopoiesis definition
Definition
process of renewal of blood cells
Term
myeloid tissues definition
Definition
"red" bone marrow
blood forming tissues
Term
erythropoiesis definition
Definition
process of formation and differentiation of RBCs
Term
list stages off erythropoiesis
Definition
proerythroblast -d-> basophilic erythroblast -d-> polychromatophilic errythroblast -d-> orthochromic erythroblast --> reticulocyte --> erythrocyte
Term
granulopoiesis definition
Definition
process of formation and differentiation of granulocytes
Term
granulopoiesis steps
Definition
myeloblast -d-> promyelocyte -d-> "neutrophilic, eosinophilic, or basophilic " myelocyte -d-> "" metamyelocyte --> "" band --> segmented ""
Term
macrophages defn.
Definition
tissue counterparts of monocytes
in bone marrow, fn. in phagocytosis and iron storage
Term
structural cells
Definition
adipocytes, reticular cells, endothelial cells
Term
mast cells
Definition
originate in bone marrow and found throughout connective tissue of body

normal component of immune
Term
ground substance defn.
Definition
colorless, transparent mixture of proteins found between cells and fibers of connective tissue

lubricant and physical barrier to bacteria

made of glycosaminoglycans (GAGs), proteoglycans, and glycoproteins
Term
most abundant protein in body
Definition
collagen
Term
macrophage location
Definition
CT proper, lung, spleen, lymph node
Term
Kupffer cell location
Definition
liver
Term
dust cell location
Definition
lung
Term
microglia cell location
Definition
CNS
Term
osteoclast location
Definition
bone
Term
langerhans cell location
Definition
skin
Term
mesenchymal cells defn.
Definition
present in developing organs
large nucleus and prominent nucleoli
Term
mesenchyme defn.
Definition
only in embryo
gives rise to all adult connective and support tissues
Term
Wharton's jelly
Definition
mucous connective tissue that makes up most of umbillical cord ; abundance of ground substance w/ a larger number of collagen fibers and few cells
Term
loose (areolar) connective tissue characterization
Definition
delicate, loosely arranged collagen w/ abundant ground substance and cells of all types (especially fibroblasts and macrophages)

all fiber types present

well vascularized

flexability
Term
dense irregular connective tissue characterization
Definition
collagen fibers predominate
mostly fibroblasts
Term
dense regular connective tissue location
Definition
tendons ligaments
Term
dense regular connective tissue characterization
Definition
fibroblasts predominate

collagen fibers run in same direction
Term
white adipose tissue fn.
Definition
padding ; protection

energy reservior (low-weight, high calorie form of energy)
Term
brown adipose tissue fn.
Definition
heat production
Term
brown adipose tissue characterization
Definition
large number of mitochondria
very vascular
central spherical nuclei
Term
chondroblasts defn.
Definition
immature cartilage cells located on the periphery of the cartilage
Term
chondrocyte defn.
Definition
mature cartilage cells in a lacuna surrounded by a basophilic matrix
Term
isogenic cell nest defn
Definition
cluster of chondrocytes resulting from division of a mature chondrocyte into daughter cells
Term
osteocyte defn
Definition
mature bone cell that does not produce new matrix but maintains it

imprisoned in lacuna
Term
osteoblast fn.
Definition
production of organic bone matrix
Term
bipolar neurons location
Definition
sensory neurons in ear/vestibular system, retina, olfactory mucosa
Term
pesudounipolar neuron location
Definition
peripheral sensory ganglia such as dorsal root ganglia, and cranial ganglia
Term
multipolar neuron location
Definition
most common
brain, spinal cord, peripheral ganglia
Term
what is the major component of thick filaments
Definition
myosin
Term
what is the major component of thin filametns
Definition
actin
Supporting users have an ad free experience!