Nervous System

Front

Brainstem

Back

The central trunk of the mammalian brain, consisting of the medulla oblongata, pons, and midbrain, and continuing downward to form the spinal cord.

Front

Nerves

Back

A whitish fiber or bundle of fibers that transmits impulses of sensation to the brain or spinal cord and impulses from these to the muscles and organs.

Front

Cerebellum

Back

The part of the brain at the back of the skull. Its function is to coordinate and regulate muscular activity.

Front

Cerebrum

Back

The principal part of the brain, located in the front area of the skull and consisting of two hemispheres, left and right, separated by a fissure. It is responsible for the integration of complex sensory and neural functions and the initiation and coordination of voluntary activity in the body.

Front

Neurons

Back

A specialized nerve cell transmitting nerve impulses.

Front

Axon

Back

The long thread-like part of a nerve cell along which impulses are conducted from the cell body to other cells.

Front

Vertebra

Back

Each of the series of small bones forming the backbone; It has a hole through which the spinal cord passes.

Front

Spinal cord

Back

The cylindrical bundle of nerve fibers and associated tissue which is enclosed in the spine and connects nearly all parts of the body to the brain, with which it forms the central nervous system.

Front

Synapse

Back

A junction between two nerve cells, consisting of a minute gap across which impulses pass.

Front

Senses

Back

A faculty by which the body perceives an external stimulus; sight, smell, hearing, taste, and touch.