Author Question: Which of the following is controlled by the involuntary action of respiration? a. Lungs b. ... (Read 169 times)

londonang · **on:** Jun 25, 2018

Which of the following is controlled by the involuntary action of respiration?
a. Lungs
b. Diaphragm
c. Medulla oblongata
d. Chest wall

Question 2

Of the 12 pairs of cranial nerves in our body, which are directly related to the oral cavity?
1 . I
2 . III
3 . V
4 . VII
5 . VIII
a. 3 only
b. 3, 4
c. 1, 2, 3, 4, 5
d. None of these

Dnite · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

c

Answer to Question 2

b
RATIONALE: The fifth and seventh cranial nerves are related to the oral cavity. The trigeminal nerve innervates the upper and lower jaw and the facial nerves innervate the facial muscles, salivary glands, lacrimal glands, and the sensation of taste on the anterior two-thirds of the tongue.