Unit 2 Section ABC revision

The pathway of air into the lungs is:

• 
• 
• 
• 

The _____________ intercostal muscles contract during expiration

Nose, mouth, pharynx, larynx, trachea, ........

• Bronchioles

• Daiphragm

• Bronchi

• Alveoli

Which of the following is not a characteristics of alveoli?

• They are the location where gaseous exchange occurs

• Are located on the end of bronchioles

• Small surface area

• Thin, moist lining (one cell thick)

Which 2 muscles are involved in expiration and inhalation?

• Intercostal muscles

• Rectus abdominus

• Pectoralis major

• Diaphragm

• Latissimus dorsi

The normal, relaxed shape of the diaphragm is?

• Bowl

• Flat

• Facing outwards

• Dome

Inspiration is...

In the process of diffusion, the alveoli receive CO2 and give out O2 to which blood vessel?

• Artery

• Vein

• Capillary

During exercise...

• Tidal volume and vital capacity increase.

• Tidal volume and vital capacity decrease.

• Tidal volume increases and vital capacity stays the same.

• Tidal volume decreases and vital capacity increases.

What position would you be in if you were lying prone?

• Lying on your side

• On your back with your face pointing upwards

• Lying down on your stomach face pointing downwards

• Lying on your back with your feet upwards