7.1 Anatomy of the Urinary System Part 5

Question 1

What is the function of the glomerular capsule?

Answer 1

filters the blood

Question 2

What is the function of the renal tubule?

Answer 2

reabsorbs needed materials

Question 3

What is the function of the collecting ducts?

Answer 3

carry the remaining material away as urine

Question 4

What are the parts of the renal tubule?

Answer 4

proximal convoluted tubule
loop of henle
distal convoluted tubule

Question 5

What is the renal corpuscle composed of?

Answer 5

glomerulus
Bowmans capsule

Question 6

What is the glomerulus?

Answer 6

network of tiny blood capillaries

Question 7

What is Bowmans capsule?

Answer 7

double walled simple squamous epithelial cup

Question 8

What are fenestrations?

Answer 8

pores

Question 9

What do the fenestrations of the glomerular capillaries allow?

Answer 9

certain substances to leave the capillaries

Question 10

What is unique about the glomerular capillaries?

Answer 10

lie between two arterioles instead of a vein and arteriole

Question 11

What does the different in diameter of the afferent and efferent arteriole cause?

Answer 11

causes a high blood pressure in the glomerular capillaries forcing water and solutes out of the blood allowing for filtration

Question 12

Which has a bigger diameter, afferent or efferent arterioles?

Answer 12

afferent is larger

Question 13

What happens to the water and solutes that leave the glomerulus?

Answer 13

glomerulus - glomerular capsule - renal tubule

Question 14

What is the filtrate?

Answer 14

water and solutes that have left the blood and entered the glomerular capsule

Question 15

What are cortical nephrons?

Answer 15

located in the cortex region of the kidney except for a portion of the loop of henle which extends into the medulla

Question 16

What percentage of nephrons are cortical nephrons?

Answer 16

85%

Question 17

What are juxtamedullary nephrons?

Answer 17

pass deeply into the medullary region

Question 18

What is the PCT specialized for?

Answer 18

reabsorb water and solutes from the glomerular filtrate into the low pressure peritubular capillaries

Question 19

What is the function of the descending loop of henle?

Answer 19

water loss

Question 20

What is the function of the ascending loop of henle?

Answer 20

NaCl loss