Urinary System- Unit 4

Question 1

Interlobular Artery is also known as

Answer 1

Cortical Radiate Artery

Question 2

Glomerular Capsule is simple squamous epithelium, surrounds glomerulus, and also known as…

Answer 2

Bowman’s Capsule

Question 3

Arcuate artery and vein are located at transition between

Answer 3

Cortex and Medulla

Question 4

Path of blood through kidney

Answer 4

Aorta ==> Renal A.
Segmental A.
Lobar A.
Interlobar A.
Arcuate A.
Interlobular A.
Afferent Arteriole
Glomerulus
Efferent Arteriole
Peritubular Capillaries
3 Veins
Renal V. ==> Inf. Vena Cava

Question 5

Juxtamedullary vs Cortical Nephrons

Answer 5

Juxtamedullary- 15%, long LoH. concentrates/dilutes urine

Cortical- 85%, short LoH, excretory and regulatory functions

Question 6

Where are peritubular capillaries?

Answer 6

In nephrons

Question 7

Vasa Recta location + difference

Answer 7

Along loops of Henle of Juxtamedullary nephrons, it maintains the salt gradient

Question 8

Position of juxtaglomerular apparatus

Answer 8

where loop of Henle becomes distal convoluted tubule

Question 9

The Macula Densa adjusts

Answer 9

Filtration rate and renal blood flow

Question 10

Juxtaglomerular cells release

Answer 10

Renin, raises blood pressure

Question 11

Bladder epithelium cells

Answer 11

Transitional epithelium

Question 12

Position of internal and external urethral sphincters

Answer 12

Internal- proximal to bladder
External- proximal to urogenital diaphragm

Question 13

Urethra segments

Answer 13

Male: Prostatic, Membranous, Spongy
Female: Posterior, Anterior