Multiple Choice
Two signaling proteins,agrin and neuregulin,have been identified in studies of neuromuscular junction development.In the absence of neuregulin:
A) Schwann cells die.
B) postsynaptic structures do not form in muscle cells.
C) the acetylcholine receptor protein is not synthesized.
D) all of the above
Correct Answer:

Verified
Correct Answer:
Verified
Q16: In a human brain,the number of glial
Q17: The birth of new neurons in the
Q18: During an action potential,which happens first?<br>A)opening of
Q19: Which of the following proteins is NOT
Q20: Explain how the expression of the H⁺/acetylcholine
Q22: Describe the common features of the GABA,norepinephrine,dopamine,and
Q23: Which cells produce myelin sheaths?<br>A)Schwann cells and
Q24: Action potentials:<br>A)vary in intensity<br>B)vary in frequency and
Q25: Botulinum toxin acts on:<br>A)SNARES to promote vesicle
Q26: How are neurotransmitters packaged at synaptic endings