Essentials of Anatomy and Physiology

422 The Urinary System

Renal corpuscle

Renal cortex

Renal tubule

Renal medulla

Papillary duct

B

D

Papilla of pyramid

Calyx

Renal pelvis

Renal artery

Renal vein

Interlobar

artery

Arcuate artery

Ureter

A

C

Nephron

Renal cortex

Renal medulla

(pyramids)

Figure 18–2. (A) Frontal section of the right kidney showing internal structure and

blood vessels. (B) The magnified section of the kidney shows several nephrons. (C) Vascular

cast of a kidney in lateral view. Red plastic fills the blood vessels. (D) Vascular cast in medial

view. Blood vessels have been removed; yellow plastic fills the renal pelvis. (Photographs C

and D by Dan Kaufman.)

QUESTION:Which main parts of a nephron are found in the renal cortex? Which areas of

a kidney have many blood vessels?