cardiac muscle

the specialized muscle tissue of the heart. It consists of striated fibers that branch and interlock and are in electrical continuity with each other. This arrangement permits action potentials to spread rapidly from cell to cell, allowing large groups of cells to contract in unison. Compare skeletal muscle; smooth muscle.

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Psychology term of the day

March 15th 2025

flocking

n. the grouping of birds due to social attraction and interaction. It is related to colonial nesting (see colonial species) and contrasts with aggregation, which is due to some independent factor. The equivalent of flocking in mammals is known as herding (see herd instinct).