1.
a) Bundles of axons and their sheaths which extend from the CNS
b) Collections of neuron cell bodies which are outside of the CNS
c) Nerves which originate from the spinal cord
d) Nerves which originate from the brain
e) Neurons which transmit action potentials from the sensory organs to the CNS
f) Neurons which transmit action potentials from the CNS to the effector organs
g) The system that transmits action potentials from the CNS to the skeletal muscles
h) The system that transmits action potentials from the CNS to the smooth muscles, cardiac muscles, and glands
i) Division of the ANS that generally prepares the body for physical activity
j) Division of the ANS that regulates resting and nutrition related functions such as digestion, defecations and urination
k) A neuron that conducts action potentials from one neuron to another neuron within the CNS
l) The ability to create an action potential in response to a stimulus
m) A measure of the charge difference across the cell membrane
2.
Afferent
3.
a) Efferent
b) ANS
4.
a) Presynaptic terminal
b) node of ranvier
c) Collateral axon
d) Golgi apparatus
e) nucleus
f) neucleolus
g) dendrites
h) mitochondrion
i) cell body
j) axon hillock
k) myelin sheath
5.
Oligendrocyte
Schwann cell
Microglia
Astrocytes
Ciliated ependymal
non-ciliated ependymal
6.
a) epineurium
b) fascicle
c) axon
d) endoneurium
e) perineurium
7.
a) Mixed nerves have two or more functions. Sensory nerves tab into the organs that control the senses.
b) Mixed nerves
8.
a) CNS
b) No it cannot
9.
a) Yes, depending on whether or not the cell is still alive and lined up well.
10.
no
11.
yes
12.
Subthreshhold
13.
c
d
a
b
14.
a) Repolarization
b) Depolarization
15.
Absolute refractory period
16.
Myelinated axons carry faster because of saltatory conduction
17.
Because saltatory conduction carries the saharp pain quicker than the dull pain.
18
?
19.
a) calcium channels
b) synaptic vesicles
c) sodium channels
d) PRESYNAPTIC TERMINALS
e) Synaptic cleft
f) Postsynaptic membrane
20.
The latter
21.
An inhibitory synapse has occured
22.
inhibitory
23.
converging
diverging
oscillating
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