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

haptic illusion

any mistaken perception arising from voluntary, directed contact with an object (see active touch). The haptic Müller-Lyer illusion is an example. Compare tactile illusion.