Respiratory System

Question 1

Respiratory system consists of:

Answer 1

Nose
Pharynx
Larynx
Trachea
Bronchi
Lungs w/ their alveoli
Diaphragm
Muscles surrounding ribs

Question 2

External respiration:

Answer 2

Exchange of gases between the atmosphere and the blood through the alveoli

Question 3

Internal respiration:

Answer 3

Exchange of gases between the blood and the body cells

Question 4

Function of respiratory system:

Answer 4

To supply oxygen to the body and eliminate carbon dioxide

Question 5

Upper passageways of the respiratory system serve to:

Answer 5

Warm, filter, and moisten incoming air

Question 6

Upper respiratory tubules are lined with:

Answer 6

Cilia that help to trap debris and keep foreign substances from entering the lungs

Question 7

Inhalation:

Answer 7

Contraction of the diaphragm to enlarge the thoracic cavity and draw air into the lungs

Question 8

Regulator of blood pH:

Answer 8

Carbon dioxide

Question 9

Exhalation:

Answer 9

Lungs recoil as respiratory muscles relax and thorax decreases in size

Question 10

Nose is:

Answer 10

The first body part of air intake/removal of CO2

Question 11

Pharynx consists of:

Answer 11

Nasopharynx, oropharynx, laryngopharynx

Question 12

Larynx consists of:

Answer 12

Epiglottis (prevents food from entering), thyroid cartilage/Adam’s apple, cricoid cartilage

Question 13

Alveoli:

Answer 13

Microscopic sacs where gas exchange occurs