Asked by Terri Bryant on Jun 17, 2024
Verified
Which part of the sarcolemma contains acetylcholine receptors?
A) any part of the sarcolemma
B) motor end plate
C) end of a muscle fiber
D) none of the above
Sarcolemma
The cell membrane surrounding a muscle fiber, playing a crucial role in muscle contraction.
Acetylcholine Receptors
Protein receptors located in the neuro-muscular junction and various parts of the nervous system that bind acetylcholine, facilitating neurotransmission.
Motor End Plate
The specialized part of a muscle fiber membrane at a neuromuscular junction where a motor neuron applies its neurotransmitter.
- Understand the basic structure and function of muscle cells.
Verified Answer
PB
Pearlie BraddockJun 22, 2024
Final Answer :
B
Explanation :
Acetylcholine receptors are specifically located at the motor end plate, which is the region of the sarcolemma where the motor neuron synapses with the muscle fiber. Therefore, the correct choice is B.
Learning Objectives
- Understand the basic structure and function of muscle cells.