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Heart & Lung Anatomy & Physiology

Test Description: Function & structure of heart & lung

Instructions: Answer all questions to get your test result.

1) What structures prevent the blood from flowing in the wrong direction in the heart?

AValves BVena cava CCapillaries DArteries

2) What process is responsible for moving gases into & out of the capillaries?

AOsmosis BPhotosynthesis CMitosis DDiffusion

3) In the lungs, where does gas exchange occur?

AVeins in the systemic circuit BArteries nearest the aorta CAround the vena cava DCapillaries around the alveoli

4) What kind of blood is found in the veins of the systemic circuit?

Aoxygenated Bdeoxygenated Ccapillaries Ddiffusion

5) What is the sheet of muscle that controls the size & activity of the lungs?

Aalveoli Bperistalsis Csuperior vena cava Ddiaphragm

6) What would happen to an individual if their red blood cells were not functioning properly?

AThe exchange of oxygen & carbon dioxide would be less efficient BCarbon monoxide would increase in the lungs CThe exchange of oxygen & carbon dioxide would remain the same DThe trachea would work harder

7) What is the function of the cells lining the trachea?

AAdd deoxygenated blood to incoming air BIncrease blood flow to the aorta CIncrease surface area for gas exchange DHelp filter the incoming air

8) The plasma portion of blood contains:

ANutrients from the digestive system BSalts CIons DAll the answers are correct

9) What is the function of white blood cells

AIncrease oxygen content in the blood BSearch & destroy any foreign cells in the body CRemove oxygen from the veins DIncrease surface area in the alveoli

10) Where is oxygenated blood found?

ALeft side of the heart & almost all of the arteries in the body BRight side of the heart & almost all of the veins in the body CLeft ventricle & right atrium & most of the veins in the body DRight ventricle & left atrium & most of the arteries in the body

*select an answer for all questions

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