Neuromuscular Junction Review

The location where the motor neuron reaches the sarcolemma of the muscle fiber is the _____.

• Neurotransmitter

• Acetylcholine

• Synaptic cleft

• Neuromuscular Junction

One neuron and all the skeletal muscle cells it stimulates is the ____ ___.

• Neurotransmitter

• Neuromuscular junction

• Motor unit

• Synaptic cleft

The physical gap space between the neuron and sarcolemma of the muscle fiber is the ____ ___.

• Synaptic cleft

• Neurotransmitter

• Motor unit

• Neuromuscular junction

What is the specific neurotransmitter that stimulates the muscle contraction?

• GABA

• Acetylcholine

• Serotonin

• Dopamine

What is the name of the structure that stores neurotransmitters?

• Synaptic cleft

• Acetylcholine

• Receptors

• Synaptic vesicles

The neurotransmitter stored in the axon terminal identified as #3

• Acetylcholine
• Protein Channel
• Calcium Ion (Ca²⁺)
• Syanptic Cleft

What is acetylcholine?

• an ion pump on the postsynaptic membrane

• a source of energy for muscle contraction

• a component of thick myofilaments

• a neurotransmitter that stimulates skeletal muscle to contract

What is number 6 pointing to?

• a muscle cell

• a synaptic vesicle

• a neurotransmitter

• a neuron

What is the function of this entire diagram?

• controlling a nerve

• controlling a skeletal muscle contraction

• endocytosis

• inserting a musle on a bone

Click all that apply. Which of these make up a motor unit?

• Motor neuron

• Muscle Fibers

• Muscle

• Nerve