UWSP Bio 385 Exam 2 questions well answered
already passed
1. What do
supply skeletal muscles and bring about movement
motor
neurons do?
originate in spinal cord, end on skeletal muscle
2. Where do
axons of
motor neu-
rons
originate and
end?
3. muscle fiber a single muscle cell
4. terminal button enlarged knoblike structure that results from axon terminal splitting into
fine
branches
5. motor end plate specialized portion/groove of muscle cell membrane where fine
branches with terminal buttons fit into
6. what is ACh? acetylcholine, a neurotransmitter that carries signals between terminal
What does it button and muscle fiber
do?
7. What does nAChR Nicotine Acetylcholine Receptors, non specific cation channels on the
motor end
mean? What is it? cholinesterase (AChE)
8. End Plate 10. What is the first series of events in NMJ?
Poten- tials
(EPP)
9. Acetyl-
1/
13
, UWSP Bio 385 Exam 2 questions well answered
already passed
late in which ACh binds to to motor end plate
raded potentials as a result of enzyme located in the NMJ that breaks down ACh and ends ACh activity, leading to
nAChR + ACh, which relaxation of the muscle
stimulate APs in the skeletal
muscle membrane adjacent
AP occurs in motor neuron
11. Because Na+ flows down both concentration and electrical gradient
2/
13
already passed
1. What do
supply skeletal muscles and bring about movement
motor
neurons do?
originate in spinal cord, end on skeletal muscle
2. Where do
axons of
motor neu-
rons
originate and
end?
3. muscle fiber a single muscle cell
4. terminal button enlarged knoblike structure that results from axon terminal splitting into
fine
branches
5. motor end plate specialized portion/groove of muscle cell membrane where fine
branches with terminal buttons fit into
6. what is ACh? acetylcholine, a neurotransmitter that carries signals between terminal
What does it button and muscle fiber
do?
7. What does nAChR Nicotine Acetylcholine Receptors, non specific cation channels on the
motor end
mean? What is it? cholinesterase (AChE)
8. End Plate 10. What is the first series of events in NMJ?
Poten- tials
(EPP)
9. Acetyl-
1/
13
, UWSP Bio 385 Exam 2 questions well answered
already passed
late in which ACh binds to to motor end plate
raded potentials as a result of enzyme located in the NMJ that breaks down ACh and ends ACh activity, leading to
nAChR + ACh, which relaxation of the muscle
stimulate APs in the skeletal
muscle membrane adjacent
AP occurs in motor neuron
11. Because Na+ flows down both concentration and electrical gradient
2/
13
