Peripheral Nervous System

Question 1

Location of PNC

Answer 1

Located outside the CNS. Subdivided into somatic and automatic nerves it consists of 12 cranial nerves and 36 spinal nerves

Question 2

Function of PNS

Answer 2

it conducts nerve impulse from Receptor to CNS along the sensory neuron
Conducts conducts nerve impulse from CNS to the effector along the motor neuron

Question 3

Automatic nervous system has to do with involuntarily action
Position
Function

Answer 3

Position
-Consiste of the sympathetic and parasympathetic
Function
-controls all involuntarily action

Question 4

Sympathetic

Answer 4

• controls activities that increase amount of energy we use

- prepares body for figh or flight response

Question 5

Parasympathetic system

Answer 5

• control activities that decrease amount of energy we use

- cause rest and digest to occur

Question 6

Sensory neuron

Answer 6

Conduct impulse from Receptor to CNS

Question 7

Sensory neuron

Answer 7

Conduct impulse from Receptor to CNS

Question 8

Motor neuron

Answer 8

Conducts nerve impulse from the CNS to the effector

Question 9

Interneuron nerves

Answer 9

Connects sensory and motor neuron in CNS

Question 10

Direction of impulse

Always

Answer 10

Dendrite》cell body 》axon

Question 11

Relax action

Answer 11

Fast automatic involuntarily response

Question 12

Relax arc

Answer 12

Fast involuntarily response of muscle or gland

Question 13

Significance of reflex arc

Answer 13

It’s a rapid action prevents the body from further injuries

Question 14

Disorder of CNS

Answer 14

Alzheimers and multiple sclerosis

Question 15

Alzhymus
Cause
Symptom

Answer 15

Cause 
Not certain 
Age 
Shrink of brain 
Family history 

Symptom
Memory loss
Can’t recognize family member

Question 16

Multiple sclerosis (myelin sheath start degenerating)
Cause
Symptoms

Answer 16

Cause 
Not certain 
Auto immune condition 
Symptoms 
Numbness in arms and legs 
Memory loss