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bio 669 quiz 6 Questions & Answers(GRADED A+) $12.99   Add to cart

Exam (elaborations)

bio 669 quiz 6 Questions & Answers(GRADED A+)

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  • Bio 669
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  • Bio 669

renal capsule - ANSWERmass of fat surrounding & covering each kidney renal fascia - ANSWERa fibrous tissue that double wraps the renal capsules -contains adipose & connective tissue hilum - ANSWERindentation in kidneys & location for entry/exit of renal blood vessels, nerves, ureters, lympha...

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  • August 27, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Bio 669
  • Bio 669
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bio 669 quiz 6 Questions &
Answers(GRADED A+)
renal capsule - ANSWERmass of fat surrounding & covering each kidney



renal fascia - ANSWERa fibrous tissue that double wraps the renal capsules

-contains adipose & connective tissue



hilum - ANSWERindentation in kidneys & location for entry/exit of renal blood vessels, nerves,
ureters, lymphatic vessels



cortex - ANSWERouter portion of kidney

contains glumerulus, proximal tubules & distal tubules



medulla - ANSWERinner portion of kidney

contains renal pyramids-which contain the loop of henle & collecting ducts

-renal columns-extentions of cortex & extend b/w renal pyramids to renal pelvis

-major & minor calyces-chambers receiving urine from collecting ducts & enter renal pelvis



structural unit of kidneys - ANSWERlobe

-each lobe contains a pyramid & the overlying cortex



nephron - ANSWERfunctional unit of kidneys

3 kinds-superficial cortical=85% of nephrons, extends into medulla

-midcortical=short or long loops

-juxtamedullary-12% of nephrons, lie close & extend deep into medulla, important for concentrating
urine



glomerulus - ANSWERtufts of capillaries that loop into bowmans capsula

, bowmans capsule - ANSWERcovers glomerulus & captures any fluid that leaks out of it



mesangial cells - ANSWERsecrete mesangial matrix that helps keep glomerulus together

-part connective tissue

-part smooth muscle so they contract to control blood flow

-part immune cells b/c they are phagocytotic & release cytokines



renal corpuscle - ANSWERglomerulus, mesangial cells, & bowmans capsule



glomerular filtration membrane - ANSWERfilters blood components thru its 3 layers

-inner capillary endothelium-in continuous contact w/basement membrane & contains pores

-middle basement membrane-selectively permeable network

-outer capillary epithelium-contains podocytes from which pedicles/foot projections that radiate &
adhere to basement membrane



filtration slits - ANSWERthe pedicles interlock w/adjacts pedicles forming a network of intercellular
clefts



glomerular filtration membrane duty - ANSWERseparates blood of glomerular capillaries from fluid in
bowmans space & filters all components of blood ecept plasma proteins



principal cells - ANSWERfound in distal tubules

-reabsorbs sodium & secretes K

-sensitive to aldosterone



intercalated cells - ANSWERsecrete H & reabsorb K & bicarb



juxtaglomerular cells - ANSWERrenin releasing cells that surround the afferent arteriole that enters
the golmeulus

-b/w the afferent & efferent arterioles is the macula dense which has sodium sensing cells

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