Explanation

A normal healthy human breathes about 11,000 litres of air in a day

breath air by the process of breathing                                               

Additional information:

The average adult at rest inhales and exhales something like 7 or 8 liters of air per minute.

Explanation

The cochlea is a part of the human ear, not the eye.

Explanation

• Skin is the largest organ of our body.
• The skin is made up of three main layers: the epidermis, dermis and subcutis.
• It covering approximately 22 square feet (2 square meters) in adults.

Explanation

The human body typically has 206 bones

At the time of birth, there are 270 bones which fuse with time to come to a total of 206 bones.

The total bones of our body can be divided into:

• the axial skeleton (80) 
• the appendicular skeleton (126)

The newborn child has 300 bones.

Longest bone: Femur (thigh bone)

Shortest: Stapes (one of the 3 small bones inside the ear)

The human head has 22 bones.

Explanation

• Males: 18 inches (45 cm)
• Females: 17 inches (43 cm)

• Cylindrical bundle of nerves.
• Extends from the brain through the backbone.

Function:

• Relays information between the brain and body.
• Part of the central nervous system (with the brain).