myScience Class

The kidney are a pair of red-brown, bean-shaped organs. Each kidney is about the size of a first. The kidneys are covered and protected by ...

The urinary system consists of a pair of kidneys , a pair of ureters , the urinary bladder and the urethra . Blood is carried to each kidn...

The skin not only protects our body, but is also an excretory organ. The skin has many sweat glands which produce sweat when the body is ho...

The vascular tissues are concerned with transport and are functionally equivalent to the circulatory system of mammals. The two types of vas...

The heart is a muscular organ with walls made of cardiac muscles . The coronary arteries supply nutrients and oxygen to the muscles while t...

The human blood consist of a 55% of fluid called plasma and other 45% is cellular components consist of red blood cells, white blood cell...

There are three types of blood vessels; arteries, veins and capillaries. Arteries are blood vessels which carry blood away from the heart...