What is the longest organ in the human body?

• A. Trachea

• B. Esophagus

• C. Small Instestine

• D. Large intestine

2. What is known as the pumping organ of the body?

• A. Heart

• B. Stomach

• C. Brain

• D. Blood vessels

Answer explanation

The heart is an organ about the size of your fist that pumps blood through your body. It is made up of multiple layers of tissue.

After eating too much, your _________ is less sharp

Answer explanation

After eating too much, your hearing is less sharp.

Our ____ is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities.

Answer explanation

Our nose is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities.

You burn more calories while _________ than you do when watching television.

Answer explanation

You burn more calories while sleeping than you do when watching television.

At birth we have over 300 bones. As we grow up, some of the bones begin to fuse together as a result an adult has only ____ bones.

Answer explanation

At birth we have over 300 bones. As we grow up, some of the bones begin to fuse together as a result an adult has only 206 bones.

The hardest bone in the human body is the __________.

• A. skull

• B. Jawbone

• C. Ribcage

• D. Knee cap

Answer explanation

The hardest bone in the human body is the jawbone.

It is the strongest muscle in the human body.

• A. Heart

• B. Bicep

• C. Stomach

• D. Tongue

Answer explanation

The tongue is the strongest muscle in the human body

The _____ is the largest and heaviest internal organ of the body and weighs about 1.6 kilos.

• A. Liver

• B. Lung

• C. Heart

• D. Kidney

Answer explanation

The liver is the largest and heaviest internal organ of the body and weighs about 1.6 kilos.

It is called the soldier of the body.

• A. Red blood cell

• B. Platelets

• C. White blood cell

• D. Plasma

Answer explanation

White blood cells are also called the soldier of the body because the are the first line of defense against infections.