Unit 3

Question 1

What makes up the CNS

Answer 1

Brain and spinal cord

Question 2

What makes up the PNS

Answer 2

The peripheral nerves(sensory and motor)

Question 3

What is the SNS responsible for

Answer 3

The control of muscles

Question 4

What are the two systems within the ANS

Answer 4

Parasympathetic and sympathetic systems

Question 5

Converging neural pathways

Answer 5

Many neurons come together and feed to one neuron

Question 6

DIverging neural pathways

Answer 6

Impulses from one neuron travel to several neurons

Question 7

Reverberating neural pathways

Answer 7

Neurons later in the pathway link with earlier neurons

Question 8

3 Main areas within the cerebral cortex(cerebrum)

Answer 8

Sensory, association and motor areas

Question 9

Function of sensory areas within the cerebrum

Answer 9

Receives information as sensory impulses from receptors

Question 10

Function of association areas within the cerebrum

Answer 10

Analyse and interpret impulses from sensory areas

Question 11

Function of motor areas within the cerebrum

Answer 11

Act on information received from the association areas by sending motor impulses to effectors

Question 12

Function of corpus callosum

Answer 12

Allows the transfer of information between the two cerebral hemispheres

Question 13

Function of left cerebral hemisphere

Answer 13

Receives information from the right visual field and controls the right side of the body

Question 14

Function of the right cerebral hemisphere

Answer 14

Receives information from the left visual field and controls the left side of the body

Question 15

Three stages of memory

Answer 15

Sensory memory-> STM-> LTM

Question 16

How much information get passed between sensory and STM

Answer 16

Only selected images and sounds are encoded into STM

Question 17

How much can be stored within STM

Answer 17

Only +-7 items can be stored at one time

Question 18

How is information deleted from STM

Answer 18

Displacement and Decay

Question 19

DIsplacement definition

Answer 19

Pushing out old information by new information

Question 20

Decay definition

Answer 20

Breakdown of memory trace

Question 21

Serial position effect

Answer 21

Objects earlier in the list can be repeated for longer, objects later in the list were said earlier, objects in the middle are forgotten

Question 22

CHUNKing definition

Answer 22

Put a large group of information into smaller, more memorable amounts

Question 23

How can information be transferred from STM to LTM

Answer 23

Rehearsal, Organisation, Elaboration

Question 24

Function of neurons

Answer 24

Transmit electric signals (nerve impulses)

Question 25

What is a synapse

Answer 25

Junction between an axon of one cell and a dendrite of another

Question 26

Function of neurotransmitters

Answer 26

Relay chemical messages from nerve to nerve within and out the brain

Question 27

Excitatory signals cause…

Answer 27

An increase in action (muscles contract)

Question 28

Inhibitory signals cause…

Answer 28

A decrease in action (causes muscles to relax)