Nervous system

Question 1

Nervous system ___ and ___ to stimuli

Answer 1

receive and respond to

Question 2

what are the cells that receive stimulus

Answer 2

Receptor Cells

Question 3

Central nervous system consists of?

Answer 3

Brain and Spinal cord

Question 4

what is the Peripheral nervous system?

Answer 4

All the nerves leaving the cns

Question 5

Nervous system consist of?

Answer 5

Neurons:
Sensory neuron
Motor neruon
Interneuron

Question 6

function of sensory neuron?

Answer 6

conduct impulses from the receptors to the cns

Question 7

function of motor neuron?

Answer 7

conducts impulses from cns to the effectors (muscles & glands)

Question 8

A neuron concise of? and it’s functions

Answer 8

Dendrite - takes impulses to cell body
cell body
axon - takes impulse away from cell body

Question 9

explain how we react to a stimulus

Answer 9

1. stimulus is observed
2. stimulus is converted to an electrical impulse
3. impulse is sent to brain
4. brain interprets the impulse and sends it to muscles to perform the action

Question 10

“Certain reactions are reflex reactions”
what is a reflex?

Answer 10

A fast automatic response to a stimulus to prevent injury.

Question 11

explain a normal action (like the steps)

Answer 11

stimulus - receptor - sensory neuron - cerebrum - motor neuron - effector

Question 12

explain a reflex action

Answer 12

stimulus - receptor - sensory neuron - spinal cord - motor neuron - effector

Question 13

what is the brain protected by?

Answer 13

the skull
3 meninges
cerebro - spinal fluid

Question 14

function of cerebrum?

Answer 14

• interpret information from all the senses
• voluntary movement
• emotions
• intelligence
• memory

Question 15

functions of cerebellum?

Answer 15

• muscle coordination (carries out movement )
• maintains balance & posture

Question 16

Medulla oblongata functions?

Answer 16

• controls reflexes such as:
  breathing
  heart rate
  blood pressure
  swallowing

(connects brain to spinal cord)

Question 17

Thalamus functions?

Answer 17

controls:
body temperature
sleep
feelings of hunger and thirst
aggression

Question 18

function of occipital lobe

Answer 18

processing visual information from eyes

Question 19

temporal lobe function?

Answer 19

processes auditory information from ears

Question 20

parietal lobe function?

Answer 20

interprets skin sensations/sensory information

Question 21

frontal lobe function?

Answer 21

• origin of voluntary movement
• reasoning and thought