Muscle Contraction

Front

__________ is attached to the Z line?

Back

actin

Front

What is the contractile unit formed from Z line to Z line?

Back

Sarcomere

Front

____________ attaches to actin to form the cross bridge.

Back

Myosin

Front

What does calcium attach in a muscle contraction?

Back

Troponin

Front

What is released from the sarcoplasmic reticulum?

Back

Calcium

Front

What is the name of the neurotransmitter released at a neuromuscular junction?

Back

Acetylcholine

Front

Which of the following occur when ATP binds to the myosin head? Myosin head change to low energy configuration, Myosin head undergoes power stroke, Myosin head detach from actin, Myosin head forms cross bridge

Back

Myosin head detach from actin

Front

Ca2+ will be released from the sarcoplasmic reticulum when impulse transmitted along T tubule

Back

impulse transmitted along T tubule

Front

Rigor mortis occurs because

Back

Lack of ATP attach to the myosin head

Front

Which of the following refers to the muscle cell? Myofibril, Myofilament, Fascicle, Muscle fiber

Back

Muscle fiber