Muscular Tissues and Contraction Quiz

What type of muscle is under conscious control?

• Involuntary Muscle

• Skeletal Muscle

• Cardiac Muscle

• Smooth Muscle

Where is smooth muscle primarily found?

• Attached to bones

• In the heart

• Walls of internal organs

• In the brain

What is the primary function of cardiac muscle?

• Moves substances through organ systems

• Supports voluntary actions

• Facilitates movement

• Pumps blood throughout the body

What triggers the attachment of myosin heads to actin during muscle contraction?

• Release of sodium ions

• Release of calcium ions

• Release of acetylcholine

• Release of potassium ions

What happens to calcium ions when the motor neuron stops releasing acetylcholine?

• They are converted to ATP

• They remain in the cytoplasm

• They are pumped back into the sarcoplasmic reticulum

• They are released into the bloodstream