Our Body & An Animal's Life

How many bones make up the skeletal system?

• 270

• 206

• 20

What body parts are made of tissues that can contract and then relax back to normal size?

• bones

• ligaments

• muscles

• tendons

Which of the following is not a system of the body?

• muscular system

• nervous system

• digestive system

• worried system

Which system is packed neatly between your head and your hips and breaks down food for energy? It is more than 25 feet long.

• skeletal system

• circulatory system

• nervous system

• digestive system

Gertrude B. Elion is best known for:

• finding ways to treat many serious diseases

• her work in chemistry

• her work in biology

• trying to understand how the human body works

Which systems work together?

• the digestive system and the muscular system

• the skeletal system and the circulatory system

• the muscular system and the nervous system

• all of the systems work together

What is the name of the long tube in the digestive system that connects the mouth to the stomach?

• ligament

• small intestine

• esophagus

• tendon

Which of the following are voluntary muscles?`

• arm and leg

• heart beating and eye blinking

Which of the following are involuntary muscles?

• arm and leg

• heart beating and eye blinking

Which system is the "frame that your body hangs on"?

• skeletal system

• muscular system

• digestive system