NEET PG DENTAL EXAM

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EMBRYOLOGY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A mosquito lands on your arm. You watch it carefully then move your hand to swat it. Your sensation and response are due to ____ activity.
A
spinal reflex
B
autonomic nervous system
C
somatic nervous system
D
parasympathetic nervous system
Explanation: 

Detailed explanation-1: -Like most other arthropods, insects have a relatively simple central nervous system with a dorsal brain linked to a ventral nerve cord that consists of paired segmental ganglia running along the ventral midline of the thorax and abdomen.

Detailed explanation-2: -The somatic nervous system consists of both afferent (sensory) and efferent (motor) nerves [1]. It is also responsible for the reflex arc, which involves the use of interneurons to perform reflexive actions. Besides these, there are thousands of other association nerves in the body.

Detailed explanation-3: -When you feel a bug on your arm, your somatic nervous system is critical to the sensation. The sympathetic nervous system enables the body to conserve and store its energy. The parasympathetic nervous system mobilizes the body for action.

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