A&PII Flashcards
(41 cards)
An indentation near the center of the concave border of a kidney.
renal hilum
3 layers of tissue that surround each kidney
- renal capsule 2. adipose capsule
3. renal fascia
A smooth, transparent sheet of dense irregular connective tissue that is continuous with the outer coat of the ureter. Serves as a barrier against trauma and helps maintain the shape of the kidney.
renal capsule
Is a mass of fatty tissue surrounding the renal capsule. Protects the kidney from trauma and holds in firmly in place within the abdominal cavity.
adipose capsule
A thin layer of dense irregular connective tissue that anchors the kidney to the surrounding structures and to the abdominal wall.
renal fascia
The kidney reveals two distinct regions:
renal cortex and renal medulla
The renal medulla consists of several cone-shaped
renal pyramids
A smooth textured area extending from the renal capsule to the base of the renal pyramids and into the spaces between them.
renal cortex
The outer cortical zone and inner juxtamedullary zone are portions of the renal cortex that extend between renal pyramids.
renal columns
Renal cortex and renal pyramids constitute the
parenchyma
Functional units of the kidney
nephrons
Filtrate, formed by nephrons, drains into
papillary ducts
Papillary ducts drains into cuplike structures called:
major ( 2 or 3) and minor (8-18) calyces
Receives urine from the papillary ducts of one renal papilla and delivers it to a major calyx.
minor calyx
Once ___ enters the calyxes it becomes urine, no further absorption can occur.
filtrate
From the major calyxes, urine drains into a single large cavity called:
renal pelvis
The hilum expands into a cavity with in the kidney called:
renal sinus
The kidneys receive resting cardiac output via right and left:
renal arteries
Renal arteries divide into several ___ ____, which supply different segments of the kidney.
segmental arteries
Consists of a renal pyramid , some renal column on
either side of the renal pyramid, renal cortex at the base of the renal pyramid.
renal lobe
Each nephron receives one afferent arteriole, which divides into a tangled, ball shaped capillary network:
glomerulus
The glomerular capillaries the reunite to form an
efferent arteriole
The efferent arterioles divide to form the: ____, which surround tubular parts of the nephron in the renal cortex.
peritubular capillaries
Extending from spme efferent arterioles are long loop shaped capillaries called:
vasa recta