Respiratory System

Question 1

Carbon dioxide (CO2)

Answer 1

Tasteless, colorless, and odorless Gad produced by body cells during metabolism

Question 2

Cartilage

Answer 2

Though, elastic connective tissue that is more rigid than ligaments but less dense than bone

Question 3

Cilia

Answer 3

Hairline structure

Question 4

Diffuse

Answer 4

To move or spread out a substance at random, rather than by chemical reaction or application of external forces

Question 5

Mucous membranes

Answer 5

Moist tissue layer lining hollow organs and cavities of the body that open to the environment, also called mucosa

Question 6

Oxygen (O2)

Answer 6

Tasteless, odorless, colorless gas essential for human respiration

Question 7

pH

Answer 7

Symbol that indicates the degree of acidity or alkalinity of a substance

Question 8

Septum

Answer 8

Wall dividing two cavities

Question 9

Serous membrane

Answer 9

Thin layer of tissue that covers internal body cavities and secretes a fluid that keeps the membrane moist; also called serosa

Question 10

Pharynx

Answer 10

Throat

Muscular tube that serves as a passageway for food and air

Question 11

Nasopharynx

Answer 11

Posterior to the nose

Question 12

Oropharynx

Answer 12

Posterior to the mouth

Question 13

Laryngopharynx

Answer 13

Superior to the larynx

Question 14

Larynx

Answer 14

Voice box

Contains structures that make vocal sounds possible

Question 15

Mediastinum

Answer 15

Space between the right and left lungs

Contains the heart, aorta, esophagus, and bronchi

Question 16

Pleura

Answer 16

A serous membrane

Covers the loves of the lungs and folds over to line the walls of the thoracic cavity

Question 17

Visceral pleura

Answer 17

Membrane lying closers to the lung

Question 18

Parietal pleura

Answer 18

Membrane that lines the thoracic cavity

Question 19

Pleural cavity

Answer 19

The space between the visceral and parietal membranes

Contains a small amount of lubricating fluid which permits the visceral pleura to glide smoothly over the parietal pleura during breathing.

Question 20

Inspiration

Answer 20

Drawing air into the lungs

Diaphragm contracts and decreases pressure within the chest

Question 21

Expiration

Answer 21

Diaphragm relaxes , increases pressure within the chest

Air leaves the lungs