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Flashcards in Nervous system Deck (19)
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1

the fight/flight response is under control of the...

autonomic, sympathetic system

2

reflex reactions are under the...

somatic division

3

the rest and digest system is under the..

parasympathetic system

4

grey matter is made up of... and found in the...

- unmyelinated neurons
outer regions of the brain

5

what protects the brain?

- meninges
- blood brain barrier
- cerebral spinal fluid

6

the right side of the brain has to do with...

holistic and intuitive thinking, visual skills, and artistic abilities

7

the left side of the brain is responsible for...

logical ways of thinking, linguistic and mathematical skills

8

what systems are under involuntary control?

- rest and digest response
- reflex response
- fight/flight response

9

the axon...

conducts an electrical impulse away from the cell body and can range in length from 1mm-1m

10

where is the multipolar neutron found?

in the brain and spinal cord

11

what is the pathway of the reflex arc?

- receptor
- sensory nerve
- spinal cord
- motor nerve
- effector

12

what is the resting membrane potential of the cell?

-70mV

13

what is the threshold potential of the cell?

-50mV

14

what is the membrane potential of the cell when it is hyper polarized?

-90mV

15

at what membrane potential does an action potential occur?

-50mV

16

what is responsible for maintaining the resting potential of a nerve cell?

potassium ion channels

17

during the polarization phase of an action potential___ ions move ____ the cell

sodium
into

18

during the depolarization phase of an action potential ____ ions move ____ the cell

potassium
out

19

synapse

is the junction between 2 neurones