Which of the Following Is NOT a Correct Comparison of Cardiac

question 75

Multiple Choice

Which of the following is NOT a correct comparison of cardiac myocytes to other muscle cell types?

• A) Like smooth muscle cells, some cardiac myocytes have pacemaker potentials.
• B) Like some smooth muscle cells, cardiac myocytes are electrically coupled.
• C) Like skeletal muscle cells, actin and myosin are organized into sarcomeres.
• D) Like skeletal muscle, contraction of cardiac muscle is under autonomic nervous control.
• E) Like smooth muscle cells, cardiac muscle is under hormonal control.

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Definitions:

Forebrain

The part of the brain containing the thalamus, hypothalamus, hippocampus, amygdala, and cerebral cortex.

Midbrain

The part of the brain containing structures that are involved in relaying information between other brain regions and in regulating levels of alertness.

Thalamus

A structure in the forebrain involved in relaying information, especially to the cerebral cortex.

Medulla Oblongata

A section at the lower part of the brainstem controlling vital life functions such as breathing and heart rate.