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urinary system click to hear : urinary system

Eliminates the organism’s waste through secretion and evacuation of urine; it also regulates the quantity of water and salt in the body.
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See urinary system in : french | spanish
suprarenal gland celiac trunk cortex left kidney medulla renal papilla calyx renal pelvis renal vein renal artery superior mesenteric artery inferior mesenteric artery urethra urinary bladder internal iliac artery common iliac vein common iliac artery ureter abdominal aorta right kidney renal hilus inferior vena cava

suprarenal gland click to hear : suprarenal gland

Organ situated atop the kidney, not part of the urinary system; it secretes various hormones of the steroid and adrenal families.

celiac trunk click to hear : celiac trunk

Large branch of the descending aorta dividing into three arteries that flow to various abdominal organs (stomach, gallbladder, liver, pancreas).

cortex click to hear : cortex

Outer portion of the renal tissue inserted between the Malpighian pyramids; it is made up of small vesicles that filter the blood and produce urine.

left kidney click to hear : left kidney

Organ located beneath the gallbladder; it filters the blood and secretes urine to eliminate toxic substances and waste from the body.

medulla click to hear : medulla

Inner part of the renal tissue made up of Malpighian pyramids, cone-shaped structures that connect the urine collection canals.

renal papilla click to hear : renal papilla

Crest of the Malpighian pyramid (cone-shaped striated structure) made of urine collection canals; it opens into the calyx.

calyx click to hear : calyx

Excretory cavity of the kidney; it collects urine flowing from the papillae and opens into the renal pelvis.

renal pelvis click to hear : renal pelvis

Broad section of the excretory renal tract resulting from the juncture of the calyxes; it extends into the ureter.

renal vein click to hear : renal vein

Large vein collecting blood from the kidney; it flows into the inferior vena cava.

renal artery click to hear : renal artery

Branch of the abdominal aorta circulating blood to the kidney.

superior mesenteric artery click to hear : superior mesenteric artery

Branch of the abdominal aorta that supplies blood to the ascending colon and half of the transverse colon.

inferior mesenteric artery click to hear : inferior mesenteric artery

Branch of the abdominal aorta circulating blood to the descending colon and half the transverse colon.

urethra click to hear : urethra

Membranous canal enabling the evacuation of urine. In the male, it also allows sperm to pass.

urinary bladder click to hear : urinary bladder

Muscular reservoir where urine from the kidneys collects before being evacuated through the urethra.

internal iliac artery click to hear : internal iliac artery

Branch of the common iliac artery flowing to the pelvis, the genital organs and the inner thigh.

common iliac vein click to hear : common iliac vein

Vein carrying blood from the lower limb back to the inferior vena cava.

common iliac artery click to hear : common iliac artery

Branch of the abdominal aorta that circulates blood to the pelvis and the lower limbs; it divides into the internal and external iliac arteries.

ureter click to hear : ureter

Long muscular membranous canal extending from the renal pelvis; it carries urine from the kidney to the urinary bladder.

abdominal aorta click to hear : abdominal aorta

Fourth segment of the aorta circulating to all the organs and to the walls of the abdomen; it branches into the common iliac arteries.

right kidney click to hear : right kidney

Organ located beneath the liver; it filters the blood and secretes urine to eliminate toxic substances and waste from the body.

renal hilus click to hear : renal hilus

Opening of the inner edge of the kidney allowing the passage of blood vessels, nerves and the ureter.

inferior vena cava click to hear : inferior vena cava

Vein carrying blood deoxygenated in the lower portion of the body (below the diaphragm) to the right atrium; it is the largest vein in the organism.