BREATHING AND EXCHANGE OF GASES

Inspiration is brought about by _______ of the Diaphragm.

What skeletal structure forms the ventral surface of thoracic chamber?

• Sternum

• Vertebral column

• Diaphragm

• Rib-cage

Expiratory Capacity = ________ + Expiratory Reserve Volume

Which of the following factors affect the rate of diffusion of gases?

• Vital capacity

• Pressure gradients of gases

• Residual volume

• Solubility of gases

The air sacs that are covered with capillaries where gas exchange takes place is _________?

• Bronchi

• Trachea

• Oxygen

• Alveoli

The trachea leads to the...

• Bronchioles
• Bronchi
• Esophagus
• Pulmonary Vessel

What pressure gradient is exhalation triggered by?

• The pressure in the lungs is less than the pressure of the atmosphere

• The pressure in the lungs is greater than the pressure of the atmosphere

Gas exchange is needed to supply _____________  to cells and remove __________________

• carbon dioxide; oxygen
• oxygen; food
• oxygen; carbon dioxide
• carbon dioxide; water

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

• Ventilation
• Breathing
• Gas exchange
• Respiration

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

Mechanical movement to inhale and exhale air

• Gas Exchange
• Respiration
• Breathing
• Transport