Gas Exchange and Transport (B3.1-3.2)

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body
• to bring oxygen to the body
• to break down food and absorb nutrients
• to remove oxygen from the body and deliver carbon dioxide

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

• bronchi
• lungs
• oxygen
• alveoli

Tags

NGSS.MS-LS1-3

Given the following structures:
1. larynx
2. nasal cavity
3. pharynx
4. trachea
Which of the following is the correct order that air would flow during inhalation. 

• 1,2,3,4
• 2,3,1,4
• 2,1,3,4
• 4,2,3,1 

What is function of the dome-shaped diaphragm?

• This is where gas exchange happens.
• Air passes through the diaphragm on the way to the lungs.
• It attaches to the lungs to help in breathing.
• It is under the lungs and keeps them from falling down to your stomach.

Name the organ label # 6. 

• alveoli 
• bronchi 
• trachea 
• lungs 

What two muscle groups are used to expire?

• external intercostals, diaphragm

• internal intercostals, diaphragm

• external intercostals, abdominal muscles

• internal intercostals, abdominal muscles

Which of the following are features of the alveoli that adapt them to gas exchange?

I. High surface area
II. Thin walls
III. Dry surfaces

• I and II only
• I only
• II and III
• I, II, and III

Tags

NGSS.MS-LS1-2

Which of the following are antagonistic muscles?

• Diaphragm and external intercostal muscles

• External and internal intercostal muscles

• Abdominal and internal intercostal muscles

• Diaphragm and abdomen

Which type of cells secrete surfactant?

• Type I pneumocytes

• Type II pneumocytes

• myoglobin

• hemoglobin hemoglobin

Which blood vessel carries blood away from the heart chambers?

• Veins

• Arteries

• Capillaries

• Venules