Urinary System Mod 13

Question 1

What organs are in the urinary system?

Answer 1

2 kidneys
2 ureters
1 bladder
1 urethra

Question 2

What are the 6 internal structures inside the kidneys?

Answer 2

1. Renal cortex: outer layer
2. Renal medulla: inner portion of the kidney
3. Renal pyramids: triangular divisions of the medulla
4. Renal papilla: narrow innermost end of the pyramid
5. Renal pelvis: expansion of the upper end of the ureter
6. Calyx: divisions of the renal pelvis

Question 3

What do nephrons consist of?

Answer 3

Renal corpuscle and renal tubule

Question 4

What is the bowmans capsule?

Answer 4

Cup shaped top that surrounds the glomerulus

Question 5

What is the glomerulus?

Answer 5

Network of blood capillaries inside the bowmans capsule

Question 6

What is an afferent arteriole?

Answer 6

Delivers blood to the glomerulus

Question 7

What is the efferent arteriole?

Answer 7

Delivers blood from the glomerulus

Question 8

Define the loop of henle

Answer 8

Extension of the renal tubule

Consists of a descending limb, loop and ascending limb

Question 9

Define the distal convoluted tubule

Answer 9

Extension of the ascending limb

Question 10

Define the collecting tubule

Answer 10

Straight extension of the distal tubule

Question 11

Define the proximal convoluted tubule

Answer 11

First deferment if the renal tubule

Question 12

What are the main functions of the urinary system?

Answer 12

Maintains homeostasis and blood pressure
Stimulates red blood cell production
Disposes nitrogenous waste from the blood

Question 13

What are the 3 processes of urine formation?

Answer 13

1. Filtration
2. Reabsorption
3. Secretion

Question 14

What goes on during filtration?

Answer 14

It is the transfer of fluid and solutes from the glomerular capillaries aping a pressure gradient into bowmans capsule

Question 15

What happens during reabsorption?

Answer 15

It is the movement of substances out of renal tubules into blood in peritubular capillaries

Question 16

What happens during secretion?

Answer 16

It is the movement of substances into the urine in the distal and collecting tubules from blood in the peritubular capillaries

Question 17

Define hormones in the control of urine volume

Answer 17

There is an antidiuretic hormone that tells the tubules and the loop of henle how much water to bring back
And there is a atrial natriuretic hormone in the heart wall that can tell how much water is in the heart

Question 18

What is the function of the juxtaglomerular apparatus?

Answer 18

Secretes renin that makes blood vessels dilates and constricts

Question 19

What is anuria?

Answer 19

No pee

Question 20

What is oligura?

Answer 20

Little pee

Question 21

What is a normal amount of pee an hour?

Answer 21

30 mL an hour

Question 22

What is polyuria?

Answer 22

Excess pee

Question 23

What is the function of ureters?

Answer 23

Drains urine from the renal pelvis to the bladder

Question 24

What is the function of the urethra?

Answer 24

Passage of urine to the toilet and is also where sperm comes out