Respiratory System

Question 1

the function of Respiration is

Answer 1

To provide oxygen to the body cells for use in creating energy.

Question 2

Describe the gas exchange

Answer 2

Delivering oxygen to cells and removing carbon dioxide.

Question 3

Air is inhaled through (which two cavities)

Answer 3

Nasal cavity and oral cavity

Question 4

Air, once entered through one of the cavities, proceeds to pass the

Answer 4

Pharynx and Larynx

Question 5

After the Larynx, the cartilage-lined tube which air enters is called the

Answer 5

Trachea

Question 6

Flap that covers trachea, in order to prevent solid and liquids from entering

Answer 6

Epiglottis

Question 7

Describe the bronchus extensions

Answer 7

The bronchus follows the trachea and spilts to into two individual bronchi.

Question 8

The bronchi go into

Answer 8

The lungs

Question 9

Inside the lungs bronchi branch out to narrower tubes called?

Answer 9

Bronchioles

Question 10

What are at the end of bronchioles?

Answer 10

Alveoli

Question 11

Describe Alveoli.

Answer 11

Small sacs, that inflate and deflate as a person inhaled and exhales. This is the main site of gas exchange.

Question 12

Gas exchange takes place by diffusion between the (2 components)

Answer 12

Alveoli and blood.

Question 13

What reduces pressure required to inflate alveoli by lowering surface tension?

Answer 13

The surfactant.

Question 14

Oxygen passes into the alveoli walls into…

Answer 14

Surrounding blood capillaries and into red blood cells.

Question 15

What is exchanged in the alveoli?

Answer 15

Oxygen and carbon dioxide.

Question 16

Describe the Diaphragm.

Answer 16

• domelike muscle, located below the lungs. Flattens and expands as needed.

Question 17

The Respiratory and cardiovascular systems interact through?

Answer 17

The heart and lungs.