FLASHCARDIZZ - Neuromuscular Junction

Front

What is the gap between the axon terminal of one neuron and the dendrite of the next neuron called?

Back

Synapse

Front

What is a crossbridge in muscle contraction?

Back

A crossbridge is when the myosin head binds to actin.

Front

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

Back

Acetylcholine

Front

What is the name of the structure that stores neurotransmitters?

Back

Synaptic vesicles

Front

What are the two regulatory proteins attached to the actin myofilament?

Back

Troponin and tropomyosin.

Front

What role does acetylcholine play in muscle contraction?

Back

Acetylcholine stimulates the muscle fibers to contract.

Front

What is the function of synaptic vesicles?

Back

Synaptic vesicles store neurotransmitters and release them into the synapse.

Front

What is the role of calcium ions in muscle contraction?

Back

Calcium ions bind to troponin, causing a conformational change that allows myosin to bind to actin.

Front

What is the function of the sarcoplasmic reticulum in muscle cells?

Back

The sarcoplasmic reticulum stores and releases calcium ions during muscle contraction.

Front

What is the significance of the neuromuscular junction?

Back

The neuromuscular junction is the site where motor neurons communicate with skeletal muscle fibers to initiate contraction.