Chapter 24 Flashcards Preview

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Flashcards in Chapter 24 Deck (35):
1

Explain the blood flow through the kidneys

Oxygenated blood from descending abdominal aorta, renal artery, afferent arteriole, glomerulus, efferent arteriole, paratubular capillaries, vasa recta capillaries, loop of henle, venule, renal veins, inferior vena cava

2

Filters blood, convert filtrate to urine

Kidneys

3

Transport urine to bladder

Ureter

4

Stores 1L of urine

Bladder

5

Eliminates urine out of the body

urethra

6

Increases the absorption of calcium from small intestine to increase blood calcium concentration

calcitriol

7

What are the 6 functions of the kidney?

Forms calcitriol, regulation of ion levels and acid base balance, produce erythropoietin, regulate bp, gluconeogenesis, waste elimination

8

How do the kidneys regulate ion levels and acid base balance?

alter blood levels of hydrogen and bicarbonate ions

9

What stimulates the production of erythropoietin?

Low blood oxygen levels

10

Stimulates bone to create bone marrow

erythropoietin

11

How do the kidneys control blood pressure?

Excrete fluid into urine, release renin for production of angiotensinogen II to increase blood pressure

12

Required for production of angiotensinogen II that increases blood pressure

Renin

13

How does the kidney engage in gluconeogenesis?

Produce glucose from noncarbohydrate resources maintain normal blood glucose levels

14

Contributes to maintain pH and production of urine

Nephron

15

___% are cortical nephrons

85

16

____% are juxtamedullary nephrons

15

17

Nephron that helps with the regulation of salts

Juxtamedullary

18

Filters blood after blood is brought in by afferent arteriole

Glomerulus

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Surrounds the glomerulus, creates capsular space

Bowman's capsule

20

Reabsorbs water, ions, fats, proteins, sodium, glucose into peritubular capillaries

Proximal convoluted tube

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Water reabsorption to vasa recta capillaries

Descending loop of Henle

22

Na and Cl reabsorption

Ascending loop of Henle

23

Cells that bind to antidiuretic and aldosterone hormone, helps with absorption and secretion

Principle cells

24

Cells that regulate blood and urine pH; some reabsorption into peritubular capillaries; secretion from peritubular capillaries

Intercalated cells

25

Brings fluid to renal papilla; contains principle and intercalated cells that help with some absorption and secretion

Collecting duct

26

Specialized region of the nephron that regulates blood pressure

Juxtaglomerular apparatus

27

Where are granular cells located?

Afferent arteriole

28

What are granular cells stimulated by?

stretch or sympathetic nervous system

29

What happens to granular cells when the blood pressure decreases?

granular cells contract

30

What is the function of granular cells?

Produce/secrete renin

31

Epithelial cells in thew all of the distal convoluted tube, detects NaCl and K levels; signals granular cells to release renin if there is a change

Macula densa

32

What is freely filtered through the filtration slits of podocytes?

water, glucose, ions, amino acids, some hormones

33

What is not freely filtered through the filtration slits of podocytes?

Formed elements, large proteins

34

Converts angiotensinogen to angiostensinogen II

Renin

35

Maintains NaCl levels and eliminates potassium

Angiotensinogen II