Muscle Physiology Review

Which muscle characteristic allows the muscle to return to resting length after contraction?

• Contractility

• Excitability

• Extensibility

• Tension

What is the contractile unit of the muscle?

• Z disk

• Sarcomere

• Muscle fiber

• Muscle cell

What protein makes up the thick filaments?

• Troponin

• Tropomyosin

• Myosin

• Actin

What is the name of the location where the neuron and muscle fiber meet?

• Sarcoplasm

• Sacolemma

• Neuromuscular junction

• Axon terminal

What is the name of the neurotransmitter that is released from the neuron to the sarcolemma?

• Acetylcholine

• Acetone

• ATP

• Calcium

The enzyme cholinesterase causes acetylcholine to

• be secreted from the motor end plate.

• form cross bridges.

• bind to actin.

• decompose.

Which of the following muscle types are voluntary?

• Skeletal

• Cardiac

• Smooth muscle

Which number represents the Epimysium?

Which number represents the Perimysium?

Tags

NGSS.HS-LS1-2

Which number represents the Fascicle?

Tags

NGSS.HS-LS1-2