CHAPTER 7 Urinary System

Question 1

Arteriole

Answer 1

Small artery

Question 2

Calciferol

Answer 2

active vitamin D secreted by the kidneys

Question 3

Calyx , or Calix

Answer 3

Cup-like collecting region of the renal pelvis.

Question 4

Catheter

Answer 4

Tube for injecting or removing fluids. A urine catheter removes urine from the blood

Question 5

Cortex

Answer 5

outer region of an organ - renal cortex is the outter region of the kidney
** corital means pretaining to the cortex

Question 6

creatinine

Answer 6

Nitrogenous waste excreted in urine.
creatinine clearance is a measure of the efficiency of the kidneys in removing (clearing) creatinine from the blood.

Question 7

electrolyte

Answer 7

chemical element that carriesa an electical charge when dissolved in water. Are necessary for functioning of muscles and nerves.

Question 8

erythropoietin EPO

Answer 8

hormone secreted by then kidney to stimulate the production of red bloodcells

Question 9

filtration

Answer 9

process whereby some substances but not all pass through a filter

Question 10

glomerular capsule

Answer 10

enclosing structure surrounding each glomerulus. aka Bowman capsule and collects the material that is filtered from the blood through the walls of the glomerulus.

Question 11

glomerulus

Answer 11

TIny balls of capillaries (micro blood vessles) in the kidney

Question 12

hilum

Answer 12

Depression in the kidney where the blood vessels and nerves enter and leave .

Question 13

Kidney

Answer 13

one of two bean-shaped organs on either side of the back bone.it filters nitrogen wastes from the bloodstream in form urine

Question 14

meatus

Answer 14

opening or canal

Question 15

medulla

Answer 15

inner region of a organ.
renal medulla is the inner region of the kidney

Question 16

nephron

Answer 16

functional unit of the kidney. forms urine

Question 17

nitrogenous waste

Answer 17

substance containing nitrogen and excreted urine -exp urea, uric acid and creatinine

Question 18

potassium (K+)

Answer 18

electrolytle regulated by the kidney so proper concentration is maintained within the blood. essential to contract and conduct nerve impulses

Question 19

reabsorption

Answer 19

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

Question 20

renal artery

Answer 20

blood vessel that carries the blood to the kidney

Question 21

Renal pelvis

Answer 21

central collecting region in the kidney

Question 22

renal tubule

Answer 22

microscopic tube in the kidneys where urine is formed after filtration

Question 23

renal vein

Answer 23

blood vessel that carries blood away from the kidneys anf towards the heart

Question 24

renin

Answer 24

emzyme secreted by the kidney. it raised blood pressure byu influencing vascoconstriction

Question 25

Sodium (Na+)

Answer 25

electrolyte regulated in the blood and urine by the kidneys. needed for proper nerve impulses

Question 26

trigone

Answer 26

triangular area in the urinary bladder

Question 27

urea

Answer 27

major nitrogenous waste excreted in urine

Question 28

ureter

Answer 28

one of two tubes leading from kidney to bladder

Question 29

urethra

Answer 29

one of the two tubes leading from the urinary bladder to outside the body

Question 30

uric acid

Answer 30

nitrogenous waste excreted in the urine

Question 31

urinary bladder

Answer 31

hallow muscular sac that holds and stores urine

Question 32

urination (voiding)

Answer 32

expelling urine

Question 33

Micturition

Answer 33

aurination