Urinary System 224

Question 1

A major part of homeostasis is maintaining

Answer 1

the composition, pH, and volume of body fluids within normal limits

Question 2

The urinary system removes

Answer 2

metabolic wastes and substances in excess, including foreign substances like drugs and their metabolites that may be toxic

Question 3

Urinary consists of:

Answer 3

a pair of kidneys
a pair of ureters
a urinary bladder
A urethra

Question 4

Three Functions of the Urinary System

Answer 4

1-EXCRETION (Removal of organic wastes from body fluid)

2-ELIMINATION (Discharge of waste products)

3: Homeostatic regulation
(Of blood plasma volume and solute concentration)

Question 5

Function of kidney

Answer 5

Organ that produces urine

Question 6

Urinary tract are organs that eliminate urine through

Answer 6

•Ureters (paired tubes)
•Urinary bladder (muscular sac)
•Urethra (exit tube)

Question 7

Urination or micturition is

Answer 7

process of eliminating urine

-Contraction of muscular urinary bladder forces urine through urethra, and out of body

Question 8

Ureter function

Answer 8

Transports urine towards the urinary bladder

Question 9

Urinary bladder function

Answer 9

Temporarily stores urine prior to elimination

Question 10

Urethra function

Answer 10

Conducts urine to exterior; in males, transports semen as well as

Question 11

Hormone that decreases sodium reabsorption in the kidneys is called

Answer 11

ANP

Question 12

Movement of bonfires substances from the blood to the filtrate is called tubular

Answer 12

Secretion

Question 13

Several minor calyces merge to form the

Answer 13

Major calyx

Question 14

What are functions of the distal convoluted tubule and collecting duct

Answer 14

-transport of sodium and chloride ions

-reabsorption of water

Question 15

Within renal corpuscle, is the BCOP an inward pressure drawing fluid into the capillaries or an outward pressure forcing fluid out of the capillaries into the glomerular capsule?

Answer 15

Inward

Question 16

Renin is secreted in response too

Answer 16

-decreased sodium concentration in the filtrate

-a decrease in GFR

Question 17

The water channels through which water passes by osmosis are called

Answer 17

Aquaporins

Question 18

Water moves out of the nephron by

Answer 18

Osmosis

Question 19

Stretching wall of urinary bladder initiates the___ reflex

Answer 19

Micturition (urinating)

Question 20

Identify substances that are impermeable to the filtration membrane

Answer 20

Proteins and blood cells

Question 21

The distal convoluted tubules of several nephrons merge to form what structure

Answer 21

Collecting duct

Question 22

The renal____ is the portion of the total cardiac output that is processed through the kidneys

Answer 22

Fraction

Question 23

How is angiotensin II formed?

Answer 23

Formed from angiotensin I by angiotensin converting enzyme

Question 24

The greater the filtration pressure within a glomerulus, the __ the rate of filtration will be

Answer 24

Higher

Question 25

Identify effects of increased secretions of ADH

Answer 25

- an increase in number of aquaporins -a decrease in blood osmolarity - increase in kidney reabsorption of water