The Tendency to Concentrate Sensory Organs and Brain at the Head

question 54

True/False

The tendency to concentrate sensory organs and brain at the head end of an animal is called cephalization.

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Definitions:

Myelination

The process by which axons of nerve cells are coated with myelin, a fatty substance that speeds up the transmission of nerve impulses.

Demyelination

A pathological condition in which the myelin sheath covering nerve fibers is damaged, impairing the conduction of electrical signals in the nervous system.

Motor Pathways

Neural pathways that transmit impulses from the brain to control movements in the body.

Medulla

An area of the brainstem responsible for regulating vital functions, including breathing, heart rate, and blood pressure.