Human Body System G11

When you breathe, your lungs take in ___ and remove ___. 

• air/oxygen
• oxygen/carbon dioxide 
• carbon dioxide/waste 
• waste/air 

The air sacs that are covered with capillaries where gas exchange takes place

• bronchi
• lungs
• oxygen
• alveoli

Flap of tissue that covers the opening to the windpipe during swallowing

• Pharynx

• Trachea

• Epiglottis

Given the following structures:
1. larynx
2. nasal cavity
3. pharynx
4. trachea
Which of the following is the correct order that air would flow during inhalation. 

• 1,2,3,4
• 2,3,1,4
• 2,1,3,4
• 4,2,3,1 

The diaphragm contracts during

• Inhalation

• Exhalation

What important activity takes place in the lungs?

• Food is digested
• Waste filtered from blood
• Oxygen (O2) is exchanged for Carbon Dioxide (CO2)
• Trachea is exchanged for the larynx

A tendon attaches muscles to muscles

• True

• False

The functions are the skeletal system are

• To support the body, protect the organs, store calcium, and produce blood cells

• to regulate the composition of body fluids by removing metabolic wastes and retain the balance of water, salt, and other nutrients

• to regulate and maintain bodily functions by producing hormones and releasing them into the blood stream

• to enable the diffusion of oxygen into the bloodstream and the removal of carbon dioxide from the bloodstream

Where is new blood cells created?

• In the scapula

• In bone marrow, located inside the bone

• In the patella

• In bone marrow, located inside the muscle tissue

How many bones are in the adult human body?

• 260

• 280

• 208

• 206