Question

1. which part of the nervous system is responsible for reflexes like pulling your hand away from a flame?

a) autonomic nervous system
b) peripheral nervous system
c) central nervous system
d) somatic nervous system

1. which best describes the peripheral nervous system (pns)?

a) the brain and spinal cord
b) all nerves outside the brain and spinal cord
c) only the autonomic system
d) reflex centers only

1. which system increases your heart rate and blood pressure in response to danger?

a) parasympathetic
b) sympathetic
c) somatic
d) central

1. which system is activated when you rest, digest, and recover energy?

a) sympathetic
b) somatic

Explanation:

Question 10

Reflexes like pulling the hand from a flame involve the spinal cord (part of the Central Nervous System, CNS) for quick response. The CNS (brain and spinal cord) processes reflexes. The Autonomic NS controls involuntary functions, Peripheral NS is outside CNS, Somatic NS controls voluntary movement but reflexes here are managed by CNS.

The Peripheral Nervous System (PNS) consists of all nerves outside the brain and spinal cord (which are the Central Nervous System, CNS). Option A is CNS, C is incorrect as PNS has somatic and autonomic, D is wrong as reflex centers are in CNS.

The Sympathetic Nervous System (part of Autonomic NS) activates the "fight - or - flight" response, increasing heart rate and blood pressure in danger. Parasympathetic does the opposite, Somatic controls voluntary movement, Central is brain and spinal cord.

Answer:

C) Central Nervous System

Question 11