Physiology of Muscle Contraction

Which forms the thick filament of a sarcomere?

Which of the following make up the thin filaments of a sarcomere?

According to the sliding filament model , during muscle contraction

Which of the following the muscle fiber to shorten?

Which of the following changes in the sarcomere during contraction?

The arrival of the nerve impulse at the axon terminal of the neuromuscular junction triggers.........

Which of the following is the neurotransmitter for muscle contraction at the neuromuscular junction?

What is the substance released that interacts with the proteins on the actin filaments?

The attachment of the myosin heads to the actin filament forms what is known as a ____________.

What substance is necessary for cross-bridges to form and pull on the actin filaments?

What substance binds to the myosin heads, breaking the linkage between the myosin and actin?

During muscle relaxation __________ are actively transported out of the sarcomere and into the sarcoplasmic reticulum.

The hydrolysis (breakdown) of ATP causes _________

ATP breaks the cross bridge link between myosin and actin and becomes ADP.