Respiratory System Functions

Question 1

Allows air to enter the respiratory system after being filtered and warmed, its cilia blocks dirt and dust from entering the lungs.

Answer 1

Nasal Cavity

Question 2

Secondary external opening for the respiratory tract, can be used to supplement or replace the nasal cavity’s functions when needed.

Answer 2

Oral Cavity

Question 3

Acts as a passageway for air on route to the lungs and also acts as a passageway for food on its way to the stomach.

Answer 3

Pharynx

Question 4

A small, movable “lid” just above the larynx that prevents food and drink from entering the windpipe

Answer 4

Epiglottis

Question 5

Known as the voicebox, air passes through this before heading into lungs. Component prevents the passage of food and other foreign particles into the lower respiratory tracts.

Answer 5

Larynx

Question 6

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

Answer 6

Trachea

Question 7

Passage ways that bring air in and out of the lungs, branch off from the trachea.

Answer 7

Bronchi

Question 8

Smaller airways deliver oxygen-rich air from the trachea to the lungs,

Answer 8

Bronchioles

Question 9

Tiny sacs of air at the end of the bronchioles, covered in a capillary “coat” used for gas exchange where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out.

Answer 9

Alveoli

Question 10

Surrounds the alveoli, facilitates oxygen and CO2 exchange, delivers oxygen in the blood to the tissues, and picking up carbon dioxide to be eliminated.

Answer 10

Capillaries

Question 11

Muscles that run between the ribs, mainly involved in helping expand and shrink the size of the chest cavity to facilitate breathing.

Answer 11

Inter-coastal Muscles

Question 12

Contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. Upon exhalation, the muscles relaxes and returns to its domelike shape, and air is forced out of the lungs..

Answer 12

Diaphragm

Question 13

Protects the organs in the thoracic cavity, assists in respiration, expands during inhalation.

Answer 13

Ribs

Question 14

Main function is to help oxygen from the air we breathe enter the red cells in the blood. Red blood cells then carry oxygen around the body to be used in the cells found in our body. Gets rid of CO2 gas.

Answer 14

Lung

Question 15

Help support the trachea while still allowing it to move and flex during breathing.

Answer 15

Cartilage