Lesson 4.4 - The Excretory System

Ureter

A tube that carries urine from the kidney to the bladder.

Bladder

A muscular sac that stores urine before it is excreted.

Urethra

The duct through which urine is discharged from the bladder.

Osmoregulation

The process of maintaining an optimal balance of water and salts in the body.

Filtration

The process of removing waste products from the blood in the kidneys.

Reabsorption

The process where essential substances are reclaimed from urine back into the blood.

Secrets

The process by which certain substances are transported from the blood into the urine.

Renal Failure

A critical condition where the kidneys are unable to perform their functions properly.

Acidosis

A condition where there is too much acid in the body fluids, often due to kidney malfunction.

Electrolyte balance

The equilibrium between the body's electrolytes, crucial for various bodily functions.