Which Statement Accurately Describes the Most Important Difference Between Cardiac

question 9

Multiple Choice

Which statement accurately describes the most important difference between cardiac muscle and smooth muscle?

• A) Smooth muscle is under voluntary control, whereas cardiac muscle is not.
• B) Cardiac muscle has special junctions called intercalated discs that smooth muscle does not.
• C) Smooth muscle has no role in controlling blood pressure, whereas cardiac muscle does.
• D) Cardiac muscle is found in blood vessels, whereas smooth muscle is found in other organ systems, such as the respiratory and digestive tracts.

---

Definitions:

Analgesic

A medication or treatment capable of relieving pain without causing loss of consciousness.

Rotokinetic Bed

A specialized bed that can rotate the patient, often used to improve respiratory function and prevent complications of immobility.

Sensation Of Falling

A common feeling or illusion of dropping, often experienced abruptly while asleep or at the edge of sleep.

Light-headedness

A sensation of dizziness or feeling faint often due to a sudden drop in blood pressure or inadequate oxygen supply to the brain.