Which of the Following Statements Does NOT Accurately Describe Electrical

question 39

Multiple Choice

Which of the following statements does NOT accurately describe electrical signaling in cardiac myocytes?

• A) cardiac action potentials last 100X longer than those in a neuron or skeletal muscle
• B) voltage-gated sodium channels open during membrane depolarization
• C) voltage-gated calcium channels open during membrane polarization
• D) hyperpolarization-activated cyclic nucleotide (HCN) channels release calcium from intracellular stores

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Definitions:

Moving Hand

The complex motor function involving the muscles, bones, and nerves of the hand, enabling manipulation and movement.

Proprioception

The sense of the relative position of body parts and strength of effort being employed in movement.

Body Parts

Components of the physical structure of organisms, including limbs, organs, and tissues.

Localization

The process of determining the specific location of something, often used in the context of finding the position of a gene or identifying the site of disease.