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A&P 2 Lab pgs37-40
urinary system
23
Anatomy
Undergraduate 1
04/01/2013

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Term
kidneys
Definition
two bean-shaped organs found embedded in fat against the dorsal body wall caudal to the diaphragm; not suspended in mesenteries, covered by the perionteum only on the portion adjacent to the abdominal cavity (i.e. retroperitoneal)
Term
perirenal fat
Definition
the mass of fat surrounding the kidney
Term
adrenal glands
Definition
small, hard glands found just cranial to the kidneys; not part of the urinary system
Term
hilus
Definition
concavity seen on the medial aspect of the kidney; structures leave and enter the kidney at this location
Term
renal artery
Definition
penetrates the kidney at the hilus; carries oxygen-rich blood (including wastes)to the kidney
Term
renal vein(s)
Definition
leaves the kidney from the hilus and empties into the postcaval vein
Term
renal cortex
Definition
outer, lighter portion of the kidney; contains the microscopic renal corpuscles which cannot be seen grossly
Term
renal medulla
Definition
darker, inner portion of the kidney; composed of microscopic collecting tubules
Term
renal papilla
Definition
pointed end of the renal pyramid seen on the medial aspect of the renal medulla
Term
renal pelvis
Definition
expanded cavity into which the renal papilla projects; expanded portion of the ureter within the kidney itself
Term
ureter
Definition
small tubular structure which can be seen leaving the kidney in the area on the hilus; also retroperitoneal and often surrounded with fat
Term
urinary bladder
Definition
pear-shaped organ which acts as a temporary storage reservoir for the urine it receives from the 2 ureters; rounded cranial area called vertex, narrow caudal end called body
Term
median ligament of bladder
Definition
part of the ventral mesentery extending between the urinary bladder and the midventral body wall
Term
lateral ligament of the bladder
Definition
often fat filled; laterally placed between the urinary bladder and the body wall
Term
retrovesical pouch
Definition
in the male, the small portion of the coelom located between the rectum of the large intestine and the bladder
Term
vesicogenital pouch
Definition
in the female the small portion of the coelom between the urinary bladder and the uterus
Term
rectogenital pouch
Definition
in the female, the small portion of the coelom between the uterus and the rectum
Term
urethra
Definition
single duct extending from the narrow end of the urinary bladder through the pelvic canal to the exterior; it is this duct that eventually drains the urine from the urinary bladder
Term
glomerulus
Definition
ball of capillaries which is almost completely surrounded by the Bowman's capsule
Term
Bowman's capsule
Definition
thin, cup-shaped structure surrounding the glomerulus
Term
renal corpuscle
Definition
the glomerulus and Bowman's capsule together; filtration of the blood takes place at this level
Term
convoluted tubules
Definition
numerous; can be identified by noticing their cavities or lumina which are lined with cuboidal epithelial cells
Term
collecting tubules
Definition
can be seen in the renal pyramid and renal papilla; empty into renal pelvis
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