Question

How are skeletal muscle cells are electrically insulated from each other?

Answer 1

T-Tubule -Invaginations of thesarcolemma penetrating deep into theinterior of the muscle cell. Synaptic Cleft -the space between the axon terminal and the motor end plate. Axon Terminal -the swollen distal end of themotor neuron axon

Answer 2

T-Tubule -Invaginations of the sarcolemma penetrating deep into the interior of the muscle cell.

Synaptic Cleft -the space between the axon terminal and the motor end plate.

Axon Terminal -the swollen distal end of the motor neuron axon.

Sarcolemma -the muscle cell membrane.

Synaptic Vesicles -structures within the axon terminal that contain the neurotransmitter acetylcholine (ACh).

Terminal Cisternae & Sarcoplasmic Reticulum (SR) -structures within skeletal muscle cells that serve as reservoirs of calcium ions.

Motor End Plate -a folded region of the sarcolemma at the neuromuscular junction.