The Excretory System C15L3

Primary functions the removal of wastes and foreign substances and excess substances from the blood the temporary collection and storage of these substances the elimination of these substances from the body regulates the level of fluid in the body

The excretory system is made of four body systems.

Functions of the Excretory System (cont.) The urinary system processes, transports, collects, and removes liquid waste from the body.

Organs of the urinary system Kidneys Ureters Bladder Urethra

Organs of the urinary system The organs of the urinary system work together to process, transport, collect and excrete liquid waste.

Organs of the urinary system The bean-shaped organ that filters, or removes, wastes from blood is the kidney. The body has two kidneys, one on each side of the body, near the back wall of the abdomen, above the waste, and below the rib cage.

Kidney function filter wastes from the blood and excretes them in a liquid called urine

Kidney nephron: a network of capillaries and small tubes, or tubules, in the kidneys, where filtration of blood occurs.

Nephron Your entire blood supply is filtered by your kidneys around 60 times each day.

ureters Urine leaves each kidney through a tube called the ureter and goes to the urinary bladder

urinary bladder muscular bag that temporarily stores urine

urethra tube that leads from the bladder to the outside of the body

urethra Urine leaves the bladder through a tube called the urethra which contains circular muscles called sphincters that control the release of urine.