THORAX ABDOMEN AND PELVIS

MEDICAL

PLEURA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is responsible for the dilation of the bronchioles?
A
Sympathetic Trunk
B
intercostal nerves
C
Vagus Nerves
D
phrenic nerves
Explanation: 

Detailed explanation-1: -Bronchiole Function The smooth muscles that surround the airways will automatically constrict (close) and dilate (open) to control the flow of air in and out of the lungs. Dilation of the airways (bronchodilation) occurs when the lungs need more oxygen, such as during exercise or at higher altitudes.

Detailed explanation-2: -These tubes are dilated by the sympathetic nervous system and constricted by the parasympathetic nervous system.

Detailed explanation-3: -Nervous Innervation The parasympathetic system causes bronchoconstriction, whereas the sympathetic nervous system stimulates bronchodilation.

There is 1 question to complete.