Muscular System CUA Review

WHat type of muscle does the term "muscular system" generally refer to?

• Smooth Muscle

• Cardiac Muscle

• Skeletal Muscle

• Non-striated Muscle

What is the name of structure #1?

• Troponin

• Tropomyosin

• Actin

• ATP

What is the name of structure #2?

• Troponin

• Tropomyosin

• Actin

• ATP

The neurotransmitter that signals muscle contraction is...

• Calcium

• Actin

• Myosin

• Ach (acetylcholine)

What are two proteins involved in the contraction of muscle?

*Pick TWO.

• actin

• myosin

• fibrinogen

• collagen

• albumin

During muscle contraction the 'Z' Lines will...

• Disappear
• Get Farther apart
• Get Closer Together
• Appear Thicker

What is the point where the axon terminals of a nerve cell and the sarcolemma of a skeletal muscle join?

• adenine

• actin

• cross bridges
• neuromuscular junction
• myelin sheath

During muscle contraction, which protein moves?

• actin

• myosin

The neurotransmitter stored in the axon terminal identified as #3

• Acetylcholine
• Protein Channel
• Calcium Ion (Ca²⁺)
• Syanptic Cleft

The organelle that stores ACh in the axon is identified as #4

• Motor Neuron
• Axon Terminal of Motor Neuron
• Sarcolemma
•  Vesicle