Chapter 13 - The Urinary System Flashcards Preview

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Flashcards in Chapter 13 - The Urinary System Deck (49)
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1

Erythropoietin (EPO)

Created by kidneys. Hormone that stimulates red blood cell production in bone marrow.

2

Renin

Created by kidneys. Enzyme that functions to raise blood pressure.

3

Angiotensin

Activated by renin. Causing constriction of blood vessels.

4

ACE inhibitors

Angiotensin converting enzyme inhibitors are drugs that lower blood pressure by interfering with production of angiotensin.

5

Renal cortex

Outer region of the kidneys.

6

Renal medulla

Inner region of kidneys. Divided into triangular shaped sections called renal pyramids.

7

Nephrons

Kidneys functional units.

8

Calyx

Urine collecting areas

9

Renal pelvis

Upper funnel shaped portion of the ureter.

10

Glomerular (Bowman) capsule

Cup shaped blood filtering device of the nephron.

11

Glomerulus

Collection of capillaries in the nephron

12

Glomerular filtrate

Fluid that enters the nephrons through the glomerular wall. Mainly water, electrolytes, soluble wastes, nutrients, and toxins

13

Urea

Main waste material. Nitrogenous byproduct of protein metabolism.

14

Tubular reabsoprtion

Water, electrolytes, and nutrients returned to the blood through the peritubular capillaries that surround the nephron.

15

Antidiuretic hormone

Promotes reabsorption of water.

16

Diuretic

Substance that promotes urinary output (diuresis)

17

Trigone

Stable triangle in the bladder. Marked by the uretral openings and urethral opening. Trigones stability prevents urine from refluxing into the ureters.

18

Internal urethral sphincter

Involuntary superior muscle at the entrance of the urethra

19

External urethral sphincter

Voluntary inferior muscle

20

Ren/o

Kidney

21

Nephr/o

Kidney

22

Glomerul/o

Glomerulus

23

Pyel/o

Renal pelvis

24

Cali/o, calic/o

Calyx

25

Ur/o

Urine, urinary tract

26

Urin/o

Urine

27

Ureter/o

Ureter

28

Cyst/o

Urinary bladder

29

Vesic/o

Urinary bladder

30

Urethr/o

Urethra