Lung Capacity

The volume of air exchanged during one breath in and out in quiet breathing is called

• Total lung capacity

• Tidal volume

• Residual volume

• Forceful volume

When you inhale (undergo inspiration),

• Your diaphragm moves inferiorly, and your intercostal muscles relax to "open up" the chest cavity space

• Your diaphragm moves superiorly, and your intercostal muscles relax to "open up" the chest cavity space

• Your diaphragm moves superiorly, and your intercostal muscles contract to "open up" the chest cavity space

• Your diaphragm moves inferiorly, and your intercostal muscles contract to "open up" the chest cavity space

Why does your body need oxygen?

• to produce energy

• to expel carbon dioxide

• to supply the food with oxygen

• to fill the lungs with oxygen

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

IRV; the maximum amount you can breath in

• Lung Capacity

• Inspiratory Reserve Volume

• Expiratory Reserve Volume

• Vital Capacity

VC; the total volume of air that can be expelled from your lungs forcibly after you take your deepest breath

• Lung Capacity

• Inspiratory Reserve Volume

• Expiratory Reserve Volume

• Vital Capacity

TV; the amount of air that moves in and out of your lungs with each breath when you are breathing normally

• Tidal Volume

• Inspiratory Reserve Volume

• Expiratory Reserve Volume

• Vital Capacity

ERV; the amount of air you can force out after a normal tidal volume exhalation

• Lung Capacity

• Inspiratory Reserve Volume

• Expiratory Reserve Volume

• Vital Capacity

RV; the amount that stays in your lungs to keep your alveoli open and your lungs from collapsing

• Tidal Volume

• Inspiratory Reserve Volume

• Residual Volume

• Vital Capacity

The diaphragm is the muscle that contracts each time we _________ so that the lungs can __________.

• inhale; contract

• inhale; expand

• exhale; contract

• exhale; expand

Tags

NGSS.HS-LS1-3

When the diaphragm contracts, volume inside the lungs _______ and the pressure inside the lungs ________.

• increase; increase

• increase; decrease

• decrease; decrease

• decrease; increase