Neuromuscular junction

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

• Neurotransmitter

• Neuromuscular junction

• Motor unit

• Synaptic cleft

The gap between the nerve cell and sarcolemma is the ____ ___.

• Synaptic cleft

• Neurotransmitter

• Motor unit

• Neuromuscular junction

What is the specific neurotransmitter that stimulates the movement of skeletal muscles?

• GABA

• Acetylcholine

• Serotonin

• Dopamine

Once the action potential reaches the end of the axon terminal what takes place?

• ACh is released into the synaptic cleft.

• Calcium is pumped into the sarcolemma.

• Calcium is pumped into the AT.

• The muscle contracts.

What is the name of the component that houses the neurotransmitters?

• Synaptic cleft

• Acetylcholine

• Receptors

• Synaptic vesicles

10.A

• Dendrite

• Axon

• Axon Terminal

• Cell Body

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

16.What type of cell creates a myelin sheath?

• Schwann cell

• Oligodentrite

• Osteocyte

• Cell Body

What is the normal resting potential of a neuron cell membrane?

• +40mV
• -30mV
• +55mV
• -70mV

Tags

NGSS.MS-LS1-2

At which point on the diagram does depolarisation of the axon occur? 

• A
• B
• C
• D

Why are calcium ions necessary for skeletal muscle contraction?

• Calcium ions increase the speed of the action potential transmitted along the sarcolemma.

• Calcium ions release the inhibition on Z discs.

• Calcium ions trigger the binding of myosin heads to actin filaments.

• Calcium ions cause ATP binding to actin.