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Flashcards in Part 5 Deck (56)
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1

Arterial pressure controls?

Renal-body fluid system

2

In the renal-body fluid system, increased ECF will cause?

Arterial pressure to rise

3

Renal-body fluid system, in response to kidneys will?

Excrete excess ECF

4

The degree of shift of the renal output curve for water and salt is known as?

Determinants of long term arterial pressure

5

Increased total peripheral resistance will not create a long term elevation of of BP if?

Fluid intake and renal function don't change

6

In the kidney, afferent arterioles supply the glomerular capillaries where?

Filtration takes place

7

Efferent arterioles drain the glomerular capillaries which give rise to peritubular capillaries where?

Reabsorption takes place

8

Specialized peritubular capillaries associated with juxtamedullary nephron's is called?

Vasa Recti

9

When the ECF levels rise, the arterial pressure?

Rises

10

The kidneys excrete more fluid, thus bringing the pressure?

Back to normal

11

Acute renal output curves have the effect of?

Arterial pressure alone

12

Chronic renal output curves have the effect of arterial pressure plus?

SNS +
Renin-angiotensin system
Aldosterone
ADH
ANP

13

What hormones decrease renal blood flow?

Norepinephrine
Epinephrine
Angiotensin II

14

What hormones increase renal blood flow?

Prostaglandins E and I

15

What monitors NaCl in the macula densa of the distal tubule?

Tubuloglomerular Feedback

16

Decreased NaCl in the macula densa will cause renin to be released from?

Juxtaglomerular Cells

17

Increased renin will increase angiotensin II levels which will increase?

Efferent Arteriole resistance

18

Decrease NaCl in the macula densa also causes?

Dilation of afferent arteriole

19

The renin-angiotension-aldosterone system provides the source of?

Renin

20

What synthesizes, stores and releases renin?

Smooth muscle cells in afferent arterioles

21

Renin is stimulated by?

Decreased perfusion pressure
SNS
Decreased NaCl to macula densa (distal tubule)
Hormonal Stimulation

22

What hormones stimulate renin?

Thyroid Hormone
Growth Hormone

23

Renin is an enzyme that catalyzes the formation of?

Angiotensin I (10 AA) from Angiotensinogen (liver)

24

What occurs primarily in the lung via angiotensin converting enzyme associated with pulmonary endothelium?

Angiotensin 1 --> Angiotensin II

25

What are the functions of angiotensin II?

Stimulates adrenal cortex to secrete aldosterone
Stimulates release of ADH/Vasopressin
Stimulates kidney

26

The net effect of the functions of angiotensin II is?

decrease Na+ and H2O which increase BP

27

Angiotensin II will also stimulate thirst/drinking behavior at the level of the?

Hypothalamus

28

When you tie off one renal artery you can develop?

Systemic Hypertension

29

Systemic hypertension elevates?

Renin and Angiotensin II

30

When you tie off one renal artery you don't develop?

Uremia