33 The Nervous System

Question 1

whats the CNS

Answer 1

Central nervous system
Brain and spinal cord

Question 2

Whats the PNS

Answer 2

Peripheral nervous system
Neeves outside CNS

Question 3

What does nervous coordination involve

Answer 3

Recpetion
Transmission
Integration
Response

Question 4

What is reception

Answer 4

Detecting a stimulus
function of receptors,neurons and sense organs

Question 5

What is transmission

Answer 5

Movement of the impulse
Neurons in PNS carry messages from receptors to CNS and from CNS to effector such as muscles or glands

Question 6

What is integration

Answer 6

Impulses are sorted processed and decisions made. Occurs in CNS

Question 7

What is response

Answer 7

Effectors (muscle or gland) carries out the effect when they are stimulated by neurons

Question 8

What is a neuron

Answer 8

Nerve cell

Question 9

What is a sensory neuron

Answer 9

Aka afferent neuron
Tales a message from a sense organ to the CNS

Question 10

What is a motor neuron

Answer 10

Aka efferent neuron
Takes a message from the CNS to a muscle or gland

Question 11

What is a receptor

Answer 11

Cell or group of cells that detects a stimulus

Question 12

Whats a nerve ending

Answer 12

Connect sensory neurons to receptor cells or sense organs

Question 13

What are dendrites

Answer 13

Fibres that carry impulses towards the body

Question 14

What are axons

Answer 14

Carry impulses away from cell bodies

Question 15

What are schwann cells

Answer 15

produce the myelin sheath

Question 16

Whats the myelin sheath

Answer 16

Fat-rich layer that insulates the electrical impulses

Question 17

What is the cell body

Answer 17

contains a nucleus and cell organelles

Question 18

What are axon terminals

Answer 18

branches formed by the splitting of an axon. Each of these carry an impulse to a swelling