MEDICAL PHYSIOLOGY

PHYSIOLOGY

CENTRAL NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is controlled by automatic nerves?
A
jumping
B
clapping
C
blinking
D
kicking
Explanation: 

Detailed explanation-1: -Ocular blood flow is controlled both via direct autonomic influences on the vasculature of the optic nerve, choroid, ciliary body, and iris, as well as via indirect influences on retinal blood flow.

Detailed explanation-2: -The autonomic nervous system is regulated by integrated reflexes through the brainstem to the spinal cord and organs.

Detailed explanation-3: -The ciliary muscle is dually innervated by the autonomic nervous system. Parasympathetic stimulation activates the muscle for contraction, whereas sympathetic innervation likely has an inhibitory effect that is a function of the level of parasympathetic activity.

There is 1 question to complete.