Reflex Arc

Question 1

Sensory neurons must…

Answer 1

Be in a space exposed o the environment

Be connected centrally

Question 2

Internal Sensory Neurons

Answer 2

Endings in wall of artery are in correct position to monitor blood pressure

Question 3

External Sensory Neurons

Answer 3

Endings in tongue are in correct position to allow composition of food to be detected

Question 4

Chemo receptor

Answer 4

Stimulated by chemicals

Sense taste and smell

Question 5

Photoreceptors

Answer 5

Stimulated by light

Vision

Question 6

Mechanoreceptors

Answer 6

Physical changes

Touch, hearing, proprioception, balance

Question 7

Thermoreceptors

Answer 7

Stimulated by moderate heat and cold

Thermoreception

Question 8

Pain receptors

Answer 8

Stimulated by injury, noxious chemicals, irritants

Sense pain and itch

Question 9

Electroreceptors

Answer 9

stimulated by electric fields (muscle contractions of other animals)

Sense elelectrical

Question 10

Magnetoreceptors

Answer 10

Stimulated by magnetic fields

Question 11

Which Two receptor types are not in humans?

Answer 11

Electroreceptors and magnetoreceptors

Question 12

What is: Homunculus?

Answer 12

Wilder penfield

Size of cortex relative to body part

Density, importance, frequency of use

Question 13

Neuroscience Dogma

Answer 13

Brain structure and function fixed throughout adulthood

Neurogenesis impossible after birth

Consensus not changed until 90s

Question 14

Fixed brain

Answer 14

“Experiences life”

Limited treatment options for abnormal brain function

Question 15

Plastic Brain

Answer 15

“life experiences”

Unlimited treatment

Question 16

Brain Plasticity

Answer 16

Especially in childhood, also throughout adulthood

use it or lose it

alter behaviour/personality

Question 17

Stroke

Answer 17

Can affect just one side of body

Difficulty speaking, moving