Ch 33 Nervous System

Question 1

What is the CNS? What does it consist of?

Answer 1

Central nervous system consist of the brain and spinal cord

Question 2

What is PNS? What does it consist of?

Answer 2

Peripheral nervous system consist of nerves that carry messages to CNS

Question 3

What 4 processes are involved to carry a response to a stimulus?

Answer 3

Reception
Transmission
Integration
Response

Question 4

Explain the 4 processes that carry a response to a stimulus?

Answer 4

RECEPTION a stimulus must be detected
TRANSMISSION the message is passed along the neuron on PNS which then carry a message to or from the CNS
INTEGRATION the messages is processed and the CNS in the brain decide a response
RESPONSE effectors stimulate by nuerons

Question 5

What is a neuron?

Answer 5

A nerve cell

Can carry information from one place to another

Question 6

What is a sensory neuron?

Afferent

Answer 6

Sensory neuron takes a message from Sense organ to the CNS

Question 7

What is a motor neuron?

Efferent

Answer 7

Motor neuron takes a message from CNS to a muscle or gland

Question 8

What are 3 types of neurons?

Answer 8

Sensory
Motor
Interneuron

Question 9

What is a interneuron?

Answer 9

Carries messages between sensory and motor nueron.