The Amazing Human Body

Food needs about 2 to 3 hours to travel through the entire digestive system.

1. true
2. false

Food needs one or two days to get through the entire digestive system.

What can a muscle be compared to?

1. elastic tissue
2. a tree branch
3. a string
4. concrete

Muscles are all made of the same material, a type of elastic tissue (similar to a rubber band).

How many bones are in the human body?

1. 600
2. 210
3. 192
4. 206

The human skeleton contains 206 bones.

The cranium protects the brain.

1. false
2. true

The cranium protects the brain.

In which system of the human body do we find the enzymes that help process nutrients from food?

1. bones
2. digestive system
3. nervous system
4. muscles

In the digestive system, the liver creates different enzymes to help treat the food nutrients which are picked up in the small intestine.

Our heart muscle is about the same size as...

1. a $2 coin
2. a closed fist
3. a blueberry
4. our head

The heart is about the size of a closed fist.

Which statement is true?

1. The left side of the brain controls the left side of the body.
2. Both parts of the brain control both parts of the body at the same time.
3. The brain has no effect on either side of the body.
4. The left side of the brain controls the right side of the body.

The left side of the brain controls the right side of the body and the right side of the brain controls the left side of the body.

The heart beats around 35 million times per year.

1. true
2. false

The heart beats about 35 million times per year.

What helps to maintain good posture?

1. nervous system
2. circulatory system
3. skeletal muscles
4. quadriceps

Skeletal muscles work nonstop, without one even noticing, to control posture (position of the body)

What is the first step of digestion?

1. Absorption of nutrients
2. Blood circulation
3. Creation of enzymes
4. The decomposition of food by saliva

It is the saliva in the mouth that begins to decompose food that is first chewed.

There are the same number of nerve cells in the brain as there are stars in the Milky Way.

1. true
2. false

There are MORE nerve cells in the brain than stars in the Milky Way.

Where is bone marrow found?

1. bones
2. heart
3. nervous system
4. muscles

There is a cavity in the long bones of the body which is filled with a substance called bone marrow.

All 12 questions completed!


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