Flashcards in ANS Deck (52)
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1
CNS consists of
brain and spinal cord
2
Integration and command center
of the body
brain and spinal cord
3
PNS consists of
peripheral nerves branching out from CNS
4
connects CNS to all other locations in the body
peripheral nerves
5
sensory information travels in -- division of PNS
afferent
6
motor info travels in -- division of PNS
efferent
7
info processing
CNS
8
Efferent division includes --
somatic nervous system and autonomic nervous system
9
two types of nerves that form PNS
12 pairs of cranial
31 pairs of spinal
10
neuron aka
neuron cell, nerve fiber
11
core component of CNS and PNS
neuron
12
In CNS, neurons connect to each other to form
--
neural networks.
13
In PNS, neurons connect to --
muscle or organs.
14
function of dendrites
receive info/respond to stimuli
15
cell body aka
soma
16
cell body contains--
nucleus, cytoplasm,
organelles
17
function of axon
carries electrical signal
(action potential) away from cell
body
18
function of cell body
integrates incoming signal and generates outgoing signal to axon
19
AP carried in --
one way only
20
The difference in electric
potential between the interior
and the exterior of a cell
membrane potential
21
membrane potential: outside is --
positive
22
membrane potential: inside is --
negative
23
resting potential
-70 mV
24
Neurotransmitters are --
released from neurons to communicate with
muscle, organs, or other neurons by binding to
specific receptors in the membrane on the
postsynaptic side of the synapse or effect organ.
endogenous chemicals
25
types of NT
amino acids, peptides, monoamines, others (ACh, NO)
26
GABA, glutamate, glycine
amino acids NT
27
endogenous opioids, endorphins
peptide NT
28
catecholamines
monoamine NT
29
excitatory NT effect on PNS
neuron - AP
muscle - contraction
gland - secretoin
30