Human Gas Exchange

Which letter corresponds to the volume of air breathed in or out of the lungs per breath

• A

• B

• C

• D

Which letter corresponds to the maximum volume of air that can be forcibly expired after a maximal intake of air

• H

• F

• G

• A

Which process is an active process

• Inspiration

• Expiration

• Both

• Neither

Contraction of the external intercostal muscles and the diaphragm leads to

• Increase in the pressure of the thoracic cavity and lungs

• Increase in the pressure of the lungs

• Decrease in the pressure of the thoracic cavity and lungs

• Increase in the pressure of the thoracic cavity

The movement by diffusion of oxygen and carbon dioxide across a membrane

• Ventilation

• Breathing

• Gas exchange

• Respiration

Tags

NGSS.MS-LS2-3

What does the pressure in the lungs need to get lower than in order for air to enter the lungs?

Which of the following muscles relax during inhaling?

• A only

• B only

• A and C

• B and C|

Which muscles are contracting during inspiration

• A

• B

• A and C

• B and C

During relaxation the diaphragm returns to its original position by elastic _________

What piece of apparatus can be used to record the volume of air breathed in and out of the lungs