Intercalated Discs

question 85

Multiple Choice

Intercalated discs

• A) are characteristic of smooth muscle cells.
• B) contain gap junctions that allow the signal to spread quickly through cardiac muscle cells.
• C) support fast-twitch fibers of skeletal muscle.
• D) stimulate pacemaker cells in cardiac muscle.
• E) stimulate the contraction of skeletal muscle.

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Definitions:

Global Sea Level

The average height of the Earth's ocean surface, used as a standard in measuring sea level rise or fall globally.

Ice Volume

The total amount of ice contained within glaciers, ice caps, and ice sheets, often measured to monitor the effects of climate change.

Planet

A large celestial body that revolves around a sun in a solar system.

West Antarctica

A region of Antarctica that lies west of the Transantarctic Mountains and is largely covered by the West Antarctic Ice Sheet.