Anatomy - Respiratory System Vocab

Question 1

alveolus/alveoli

Answer 1

structures located at the end of the respiratory tree, expand during inhalation, taking in oxygen, and shrink during exhalation, expelling carbon dioxide

Question 2

Bronchial tree

Answer 2

made up of the trachea, the bronchi, and the bronchioles that transport air from the environment to the lungs for gas exchange

Question 3

Bronchiole

Answer 3

deliver air to a diffuse network of alveoli in the lungs, oxygenated air is pulled into the bronchioles.

Question 4

Larynx

Answer 4

protect the lower respiratory tract from aspirating food into the trachea while breathing

Question 5

Lungs

Answer 5

bring oxygen into our bodies and send carbon dioxide out

Question 6

Nasal cavity

Answer 6

Air moves through these passages during breathing.

Question 7

Partial pressure

Answer 7

The partial pressure of oxygen is high in the alveoli and low in the blood of the pulmonary capillaries. This allows oxygen to diffuse across into blood.

Question 8

Pharynx

Answer 8

the membrane-lined cavity behind the nose and mouth, connecting them to the esophagus.

Question 9

Respiratory membrane

Answer 9

the surface where gas exchange between the alveoli and blood occurs in the lungs

Question 10

Respiratory mucosa

Answer 10

The mucous membrane lining the respiratory tract, including the nasal cavity; the larynx; the trachea; and the bronchi tree.

Question 11

Respiratory rhythmicity centers

Answer 11

controls breathing

Question 12

Surfactant

Answer 12

Surfactant coats the alveoli. This prevents the alveoli from sticking together when your baby exhales.

Question 13

Trachea

Answer 13

passage for air, moistens and warms it while it passes into the lungs, and protects the respiratory surface from an accumulation of foreign particles

Question 14

Vital capacity

Answer 14

the maximum amount of air a person can expel from the lungs after a maximum inhalation