BMP Exam 2 Questions And Answers Latest
2025
AP transmission -
correct answer ✅defined as the movement of an AP from the
membrane of one excitable cell to the membrane of another
neuronal transmission -
correct answer ✅movement of an AP from the terminals of one
neuron to the dendrites of another neuron
neuromuscular transmission -
correct answer ✅movement of an AP from the terminals of a
neuron to the membrane of a muscle cell
motor movement -
correct answer ✅-occurs when skeletal muscle contracts
-motor neurons cause this contraction
neuromuscular junction -
correct answer ✅the junction between a nerve fiber and the
muscle it supplies
-motor neuron comes very close to touching muscle cell, but
doesn't (synapse)
,BMP Exam 2 Questions And Answers Latest
2025
-AP needs membrane to travel along, can't travel through space -->
must be transmitted indirectly
-AP transmitted from presynaptic memb to post; mechanism lies in
structure and function of terminal button
NMJ can also be called motor end plate
presynaptic membrane -
correct answer ✅the specialized membrane of the axon terminal
of the neuron that transmits information by releasing
neurotransmitter
-membrane of neuron
postsynaptic membrane -
correct answer ✅the cell membrane opposite the terminal button
in a synapse; the membrane of the cell that receives the message
-membrane of muscle
motor end plate -
correct answer ✅
,BMP Exam 2 Questions And Answers Latest
2025
terminal button membrane -
correct answer ✅-axon terminal containing synaptic vesicles;
extension of axon memb
-has Na/K ATPase
-voltage gated Na and K channels
-typical resting potential of -70mV
-unique components: Ca pump (Ca ATPase): uses E of terminal
button to create large Ca [ ] gradient across terminal button (large
[ ] inside)
-voltage gated Ca channels: deactivated/closed at rest
-filled w/ small vesicles (synaptic vesicles): contains 10,000-50,000
molecules of Ach
, BMP Exam 2 Questions And Answers Latest
2025
presynaptic neuron -
correct answer ✅where are NT synthesized and stored?
peptide NT -
correct answer ✅-NT synthesized by RER, packaged in Golgi,
transported along cytoskeleton, stored in terminal button
Ach synthesis and storage -
correct answer ✅NT synthesized from acetyl CoA, choline, and
acetate
-part of synthesis occurs in mitochondria, part in axon terminal
Ach packaging in membrane vesicles -
correct answer ✅-proton (H) ATPase uses ATP to actively transport
protons into membrane vesicle (VATPase = vesicle ATPase)
-transmembrane transporter takes up Ach in exchange for protons;
protons moving down [ ] gradient in exchange for Ach moving into
and getting concentrated in vesicle
-downhill E of protons moving out pulls ach in
Ach synthesis -
correct answer ✅acetate (-> acetyl CoA) + coenzyme A
2025
AP transmission -
correct answer ✅defined as the movement of an AP from the
membrane of one excitable cell to the membrane of another
neuronal transmission -
correct answer ✅movement of an AP from the terminals of one
neuron to the dendrites of another neuron
neuromuscular transmission -
correct answer ✅movement of an AP from the terminals of a
neuron to the membrane of a muscle cell
motor movement -
correct answer ✅-occurs when skeletal muscle contracts
-motor neurons cause this contraction
neuromuscular junction -
correct answer ✅the junction between a nerve fiber and the
muscle it supplies
-motor neuron comes very close to touching muscle cell, but
doesn't (synapse)
,BMP Exam 2 Questions And Answers Latest
2025
-AP needs membrane to travel along, can't travel through space -->
must be transmitted indirectly
-AP transmitted from presynaptic memb to post; mechanism lies in
structure and function of terminal button
NMJ can also be called motor end plate
presynaptic membrane -
correct answer ✅the specialized membrane of the axon terminal
of the neuron that transmits information by releasing
neurotransmitter
-membrane of neuron
postsynaptic membrane -
correct answer ✅the cell membrane opposite the terminal button
in a synapse; the membrane of the cell that receives the message
-membrane of muscle
motor end plate -
correct answer ✅
,BMP Exam 2 Questions And Answers Latest
2025
terminal button membrane -
correct answer ✅-axon terminal containing synaptic vesicles;
extension of axon memb
-has Na/K ATPase
-voltage gated Na and K channels
-typical resting potential of -70mV
-unique components: Ca pump (Ca ATPase): uses E of terminal
button to create large Ca [ ] gradient across terminal button (large
[ ] inside)
-voltage gated Ca channels: deactivated/closed at rest
-filled w/ small vesicles (synaptic vesicles): contains 10,000-50,000
molecules of Ach
, BMP Exam 2 Questions And Answers Latest
2025
presynaptic neuron -
correct answer ✅where are NT synthesized and stored?
peptide NT -
correct answer ✅-NT synthesized by RER, packaged in Golgi,
transported along cytoskeleton, stored in terminal button
Ach synthesis and storage -
correct answer ✅NT synthesized from acetyl CoA, choline, and
acetate
-part of synthesis occurs in mitochondria, part in axon terminal
Ach packaging in membrane vesicles -
correct answer ✅-proton (H) ATPase uses ATP to actively transport
protons into membrane vesicle (VATPase = vesicle ATPase)
-transmembrane transporter takes up Ach in exchange for protons;
protons moving down [ ] gradient in exchange for Ach moving into
and getting concentrated in vesicle
-downhill E of protons moving out pulls ach in
Ach synthesis -
correct answer ✅acetate (-> acetyl CoA) + coenzyme A
