10. Urinary Sytem Chp 20 Flashcards Preview

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Flashcards in 10. Urinary Sytem Chp 20 Deck (20):
1

Functions of the kidneys

remove metabolic wastes regulate body fluid volume, ph and composition produce erythropoietin produce renin activate d which regulates calcium absoption

2

Renal Corpuscle

cluster of capillaries (glomerulus). surrounded by the glomerular capsule (bowman's)

3

renin causes:

Vasoconstriction (decrease urine output), release aldosterone, release ADH

4

Renel tubule

receives the filtered fluid, passing it through the proximal convoluted tubule and delivering it to the descending loop of henle, ascending loop which becomes the distal convoluted tubule

5

collecting duct

combine into minor and major calyx

6

Glomerular capsule

is comosed of two layers of squamous epithelium

7

Glomerular filtration

occurs in glomerular capillaries which are highly permeable

8

GF is driven by

glomerular hydrostatic pressure (push things out) capsular hydrostatic pressure (general pressure within kidneys) plasma colloid osmotic pressure (try to pull fluid back in)

9

Urinary excretion

glomerular filtration + tubular secretion - tubular re absorption

10

renal clearance

the rate at which a particular chemical is removed from the plasma

11

micturition

controlled by the micturition reflex center

12

What is AA?

Q image thumb

Afferent arterioles

13

What is the swirly glob?

Q image thumb

Glomerulus

14

What is covering the swirly glob?

Q image thumb

Glomerular capsule

15

What is labeled a? What is its function?

Q image thumb

Proximal convoluted tubule

Receives the filtered fluid 

16

What is labeled b?

What is the function?

Q image thumb

Descending Loop (henle)

Receives the filtered fluid

17

What is labeled c? 

What is its function?

 

Q image thumb

Ascending Loop 

receives the filtered fluid

18

What is labeled d (first d)?

What is the function?

Q image thumb

Distal Convoluted Tubule

Receives the filtered fluid

19

What is labeled d? (the second d after the split)

What is it's function?

Q image thumb

Collecting duct

 

20

Afferent Artiole

has modified cells known as juxtaglomerular cells. These two group of cells are known as the juxtaglomerular apparatus and is involved in the secretion of renin