Respiratory System Test

Question 1

During inhalation, oxygen will move directly from the trachea into the:

Answer 1

Bronchi

Question 2

What reduces the friction between the lungs and rib cage during respiration?

Answer 2

Pleural Membranes, Intrapleural Fluid

Question 3

In which part of the respiratory tract does diffusion of oxygen and carbon dioxide occur?

Answer 3

Alveoli

Question 4

On average, humans exhale ______ CO2 in a normal breath

Answer 4

4.0%

Question 5

The maximum amount of air that can be moved into or out of the lungs in a single breath is called the:

Answer 5

Vital Capacity

Question 6

What chemicals in the blood are detected by the chemoreceptors, triggering inhalation and exhalation?

Answer 6

Hydrogen ions and Bicarbonate

Question 7

The respiratory control centre in the brain is called the:

Answer 7

Medulla Oblongata

Question 8

What traps foreign particles in our respiratory system?

Answer 8

Cilia and Mucus

Question 9

What is a passageway for food AND air?

Answer 9

Pharnyx

Question 10

Gas exchange between the alveoli and red blood cells is called:

Answer 10

External respiration

Question 11

Gas exchange between the red blood cells and the cells in the muscles and tissues is called:

Answer 11

Internal respiration

Question 12

The inner surface of each alveolus is lined with:

Answer 12

Surfactant

Question 13

In inhalation, oxygen will travel from the bronchi directly to the:

Answer 13

Bronchioles

Question 14

The vocal chords are found in the:

Answer 14

Larynx

Question 15

The volume of air exhaled through forced expiration is called the:

Answer 15

Expiratory Reserve

Question 16

The volume of air that remains in your lungs so that they do not collapse is called the:

Answer 16

Residual Volume

Question 17

Who would have the largest vital capacity?

Answer 17

Male athlete

Question 18

Which receptors in the lungs will signal to the respiratory control centre to stop sending nerve impulses to the diaphragm and intercostals?

Answer 18

Stretch Receptors

Question 19

In the cell, oxygen combines with ______ to produce energy:

Answer 19

Glucose and ADP

Question 20

What is produced directly during cellular respiration?

Answer 20

Water and CO2

Question 21

The right lung has _____ lobes, while the left lung has ____ lobes

Answer 21

3, 2

Question 22

When you inhale your diaphragm and intercostals:

Answer 22

Contract

Question 23

What is the correct pathway for an O2 molecule entering the respiratory system?

Answer 23

Nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, alveoli