Muscular
Circulatory
Skeletal
Nervous
Respiratory
100

What does voluntary mean?

You can control that function. For example, you can control your skeleton and where it moves to.

100

What are the 3 parts of the circulatory system?

Heart, blood vessels, blood.

100

What are the 3 parts of a bone?

Spongy, compact, and bone marrow.

100

What are the 3 main parts of this system?

Brain, spinal cord, nerves.

100

What is the function of the trachea?

To move air/O2 from the nose to the lungs.

200

What connects bones to muscles?

Tendons.

200
How many chambers are in the heart?

There are 4. There are 2 atria and 2 ventricles.

200

What is the organ of this system?

Bones.

200

Does the skeletal system work closely with this system?

Yes! The skull protects the brain and the spine protects the spinal cord.

200

What is the main organ that helps us breathe? Hint: The student models of lungs did not have them.

The diaphragm.

300

What are the 3 types of muscles?

Smooth, skeletal, and cardiac.

300

What is the main function of the heart?

To pump blood.

300

What does bone marrow produce?

Blood.

300

How many types of nervous systems are there?

2, the Central Nervous System (CNS) and the Peripheral Nervous System (PNS).

300

What is the start of the respiratory system called?

The nose.

400

The muscular system works the most closely with what other system?

The skeletal system. When muscles contract and relax, that allows our bones to move.

400
Is the heart located in the direct center of our chests?

No! It's located slightly to the left.

400

What shape are the most supportive bones?

Cylindrical.

400

True or False: Signals move to the brain from the body AND to the body from the brain.

True!

400

What do the respiratory and digestive systems have in common?

They both remove a form of waste. The respiratory system removes waste gases while the digestive system removes waste food.

500

What is it called where 2 bones meet?

Joints. We have many different types of joints with many different functions.

500

What are the 3 types of blood vessels?

Arteries, veins, and capillaries. Arteries carry blood away from the heart and have oxygen rich blood. Veins carry blood to the heart and have no oxygen in the blood. Capillaries share blood between arteries and veins.

500

Do adults or kids have more bones?

Kids. They have around 300 bones compared to the 206 of adults because some bones fuse together as we grow.

500

What are nerve cells called?

Neurons. They help carry information contained in electrical signals throughout the body.

500

What is the function of the cilia?

To clean the air coming into our body.

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