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
