Body Systems Vocabulary

1. What is the act or process of breathing?

• Digestion
• Respiration
• Circulation
• Nerves

2. A sheet of skeletal muscle that pushes against the lungs as we exhale and relaxes to allow the lungs to expand when we exhale is what structure?

• Nasal Cavity
• Brainstem
• Diaphragm
• Arteries

3. Where air is moistened, warmed, and filtered as it enters the body?

• Nasal Cavity
• Lungs
• Brainstem
• Veins

4. What is the main organ of the respiratory system; carries out the exchange of gases as we breathe?

• Lungs
• stomach
• mouth
• brain

4. The main organ of the nervous system; a soft, spongy mass of nerve cells...

• joints
• lungs
• Organ
• brain

5. What connects the brain to the spinal cord; controls hunger, thirst, and breathing?

• smooth muscle
• lungs
• brainstem
• espophagus

6. What are bundles of fibers that carry information between your brain and the rest of your body called?

• nerves
• cardiac muscles
• ligaments
• joints

7. Name the main organ, or “pump” of the circulatory system...

• heart
• lungs
• nasal cavity
• arteries

8. What structure carries oxygen and nutrients AWAY from the heart to the body ?

• joints
• arteries
• veins
• tendons

9. What is the smallest, most delicate blood vessels in your circulatory system ?

• mouth
• capillaries
• smooth muscles
• nerves