An infant has more bones than an adult.

Bones support the body and protect major organs.

The femur is the strongest bone in the body.

A professional wrestler has more muscles than a child like you.

The skeleton also produces blood cells in the body.

Muscles move in pairs. When one contracts, the other relaxes.

Involuntary muscles can be controlled consciously.

The heart consists of involuntary muscles.

Which is the longest and strongest bone in the body?

Bones cannot move without the muscles that are attached to them. What do we call the tough cords that connect muscles to bones?

Which bone(s) protect(s) the heart and the lungs?

Digestion is completed in the                       .

Peristalsis moves food down along the esophagus.

Which statement about the large intestine is TRUE?

Which condition may result from a lack of fiber and adequate water in one's diet and/or delaying one's bowel movement?

The less melanin a person has, the darker his/her skin is.

The largest organ of the body is the                .

The outermost layer of the skin is called the                       .

Our hair and nails consist of layers of dead, keratinized skin cells.

Clean air is harmful to the respiratory organs.

What is the common passageway for water, food, and air?

The structure that prevents food from entering the trachea when we swallow

Also called the voice box

The gas needed by the body and taken in during inhalation

The urinary system is responsible for getting rid of the body's liquid waste.

The part of the urinary system which stores urine temporarily before excretion

Bean-shaped organs that filter the blood of excess water, salts, and urea

Inflammation of the kidneys