unit 2 nervous system

Question 1

the nervous system is made of…

Answer 1

2 connected parts - central nervous system(CNS- brain the spinal core) and Peripheral nervous system(PHS- everywhere else)

Question 2

the nervous is made up of .. types of neurones…

Answer 2

sensory- carry electrical impulses from receptors in the CNS - senses
motor- carry electrical impulses out of CNS to effectors
relay/interneurones- found in the CNS

Question 3

neurones are..

Answer 3

specialised cells that carry electrical impulses that travel extremely fast (around 120m/s)

Question 4

draw a interneuron diagram

Answer 4

in book

Question 5

draw a motor neuron diagram

Answer 5

in book

Question 6

what is sensory homunculus

Answer 6

some parts of the body have more sensory neurons therefore have more of the cortex dedicated to the input eg) hands

Question 7

what are reflex actions and what are they for

Answer 7

fast and automatic actions we do to protect our safety

Question 8

what factors can affect our reflex’s

Answer 8

age, biological sex, physical and mental fitness, fatigue, alcohol and drugs, distraction, etc.

Question 9

draw the nervous system diagram

Answer 9

in book

Question 10

draw sensory neuron

Answer 10

in book