Q. At the neuromuscular function
A) The muscle membrane possesses musculariae receptors
B) The motor nerve endings secrete norepinephrine
C) Curare leads to prolongation of neuromuscular transmission
D) The motor nerve endings secrete acetylcholine
Explanation
The motor nerve endings secrete acetycholine, which activates nicotinic receptors of the muscle fibre membrane. Curare inhibits the nicotinic receptors and blocks neuromuscular transmission.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.