Page 258 - Ultimate Visual Dictionary (DK)

THE HUMAN BODY

Urinary system ARTERIAL SYSTEM OF KIDNEYS
Aorta

THE URINARY SYSTEM FILTERS WASTE PRODUCTS
from the blood and removes them from the body via
Celiac trunk
a system of tubes. Blood is filtered in the two kidneys,
which are fist-sized, bean-shaped organs. The renal Superior
arteries carry blood to the kidneys; mesenteric
artery
the renal veins remove blood after
filtering. Each kidney contains
about one million tiny units called nephrons.
Each nephron is made up of a tubule and
a filtering unit called a glomerulus, which
Right
consists of a collection of tiny blood vessels
renal
surrounded by the hollow Bowman’s capsule. artery Left
The filtering process produces a watery fluid renal
artery
that leaves the kidney as urine. The urine is
carried via two tubes called ureters to the bladder, Right ureter Left ureter
where it is stored until its release from the body
through another tube called the urethra.

SECTION THROUGH LEFT KIDNEY
Interlobular Collecting
vein tubule
Medullary SECTION OF KIDNEY
pyramid Bowman’s
capsule Interlobular Collecting
artery tubule
Interlobular Nephron
artery Interlobular Distal convoluted
vein tubule
Nephron
Cortex
Loop of Glomerulus
Medulla Henlé
Cortex Bowman’s
capsule
Renal artery
Proximal
Renal vein convoluted
Renal tubule
Renal pelvis sinus
Collecting
duct
Ureter Medulla
Major calyx
Loop of
Henlé
Minor calyx Renal papilla
Duct of
Fibrous capsule Bellini

Vasa
recta
Renal
column

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