It is the control centre of the

nervous system and is located within the skull. Its functions include muscle

control and coordination, sensory reception and integration, speech production,

memory storage, and the elaboration of thought and emotion.

It is a hollow, muscular organ that

pumps blood through the blood vessels by repeated, rhythmic contractions.

These are located between the

stomach and the anus and are divided into two major sections. The function of

one section is to absorb most ingested food. The second section is responsible

for absorption of water and excretion of solid waste material.

It lies on the right side of the

abdominal cavity beneath the diaphragm. Its main function is to process the

contents of the blood to ensure composition remains the same. This process

involves breaking down fats, producing urea, filtering harmful substances and

maintaining a proper level of glucose in the blood.

It is a muscular, elastic,

pear-shaped bag, lying crosswise in the abdominal cavity beneath the diaphragm.

Its main purpose is digestion of food through production of gastric juices

which break down, mix and churn the food into a thin liquid.

These are two bean-shaped organs

located at the back of the abdominal cavity, one on each side of the spinal

column. Their function is to maintain the body’s chemical balance by excreting

waste products and excess fluid in the form of urine.

It is a muscular organ located in

the pelvic cavity. It stretches to store urine and contracts to release urine.

These are two sponge-like,

cone-shaped structures that fill most of the chest cavity. Their essential

function is to provide oxygen from inhaled air to the bloodstream and to exhale

carbon dioxide.