Chapter 7: Vocabulary Flashcards Preview

Medical Terminology > Chapter 7: Vocabulary > Flashcards

Flashcards in Chapter 7: Vocabulary Deck (32):
1

arteriole

small artery

2

calciferol

active form of vitamin D, secreted by the kidney

3

calyx or calix
calyces or calices

cup-like collecting region of the renal pelvis

4

catheter

tube for injecting or removing fluids

5

cortex

outer region of an organ; the renal cortex is the outer region of the kidney

6

creatinine

nitrogenous waste excreted in urine

7

electrolyte

chemical element that carries an electrical charge when dissolved in water

8

erythropoietin (EPO)

hormone secreted by the kidney to stimulate the production of red blood cells by bone marrow

9

filtration

process whereby some substances pass through a filter

10

glomerular capsule

enclosing structure surrounding each glomerulus

11

glomerulus
plural: glomeruli

tiny ball of capillaries in the kidney

12

hilum

depression in an organ where blood vessels and nerves enter and leave

13

kidney

one of two bean-shaped organs on either side of the backbone in the lumbar region.

14

meatus

opening or canal

15

medulla

inner region of an organ

16

nephron

combination of glomerulus and renal tubule where filtration, reabsorption, and secretion take place in the kidney

17

nitrogenous waste

substance containing nitrogen and excreted in urine

18

potassium (K+)

electrolyte regulated by kidney so that a proper concentration is maintained within the blood

19

reabsorption

process whereby renal tubules return materials necessary to the body back into the bloodstream

20

renal artery

blood vessel that carries blood to the kidney

21

renal pelvis

central collecting region in the kidney

22

renal tubule

microscopic tube in the kidney where urine is formed after filtration

23

renal vein

blood vessel that carries blood away from the kidney and toward the heart

24

renin

hormone secreted by the kidney; raises blood pressure by influencing vasoconstriction

25

sodium (Na+)

electrolyte regulated in the blood and urine by the kidneys; needed for proper transmission of nerve impulses, heart activity, and other metabolic functions

26

trigone

triangular area int he urinary bladder

27

urea

major nitrogenous waste excreted in urine

28

ureter

one of the two tubes leading from the kidneys to the urinary bladder

29

urethra

tube leading from the urinary bladder to the outside of the body

30

uric acid

nitrogenous waste excreted in the urine

31

urinary bladder

hollow, muscular sac that holds and store urine

32

urination (voiding)

process of expelling urine; also called micturition

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