Question

Of the listed volumes below, which one has the smallest volume?

A. tidal volume

B. total lung capacity

C. Total lung volume

D. inspiratory reserve volume

Respiration is controlled by the cerebral cortex.

True/False

Which of the following is responsible for the formation of the bicarbonate?

A. PO4

B. O2

C. N2

D. CO2

The pitch of someones voice is controlled by _________.

A. Tension on the vocal cords

B. The force of the air

C. Shape of the laryngeal cartilages

D. Size of the laryngeal cartilages

The force that causes air to move out of the lungs during expiration is supplied by ______.

A. Pressure in the lungs

B. External Intercostal muscles

C. The diaphragm

D. All of the above

Answer 1

Of the listed volumes below, which one has the smallest volume?

   Tidal volume (a) , the tidal volume has lowest volume as compared to others . Tidal volume is 500ml.

  

Respiration is controlled by the cerebral cortex.
     
False, the volountary respiration is controlled by cerebral cortex and involuntary respiration controlled by medulla.

Which of the following is responsible for the formation of the bicarbonate?

  CO2 (d)

The pitch of someones voice is controlled by _________.
  
Tension on the vocal cords (a)

The force that causes air to move out of the lungs during expiration is supplied by ______.

All of the above (d)

The pressure in the lungs , external intercostal muscles and the diaphram leads to the expulsion of air to go out of the lungs as expiration.