What Feature of Cardiac Muscle Helps the Cells Coordinate Their

question 26

Multiple Choice

What feature of cardiac muscle helps the cells coordinate their contraction as a single unit?

• A)fused cells with multiple nuclei
• B)covalent bonds between actin and myosin molecules
• C)intercalated disks rich in gap junctions
• D)large numbers of motor neurons

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Definitions:

Sensorimotor Stage

Piaget’s first stage in cognitive development, in which infants learn through senses and motor activity.

Recognition Memory

The ability to recognize previously encountered events, objects, or people.

Preoperational

Pertains to Piaget's stage of cognitive development (roughly ages 2-7) where children start to use language but do not yet comprehend concrete logic.

Concrete Operations

Third stage of Piagetian cognitive development (approximately ages 7 to 12), during which children develop logical but not abstract thinking.