Ch10t7-10.txt

Specialized masses of nerve tissue where cell bodies of some unipolar neurons aggregate (located outside the brain and spinal cord.

Many processes arising from cell body (one axon and multiple dentrites). Found in brain and spinal cord.

Two processes (one on each end. One axon one dentrite) Found in eyes, nose, and ears.

Single process extends from cell body and then forks into two branches (single axon) One branch (peripheral) forms dentrites while the other (central) enters the brain/spinal cord. Found in ganglia outside the brian/sprinal cord.

Nerve cells specialized the react the physical and chemical changes in its surroundings.

Center of nerve cell.

A bundle of axons in the PNS.

Axons that lack a myelin sheath, but instead the axons lie partially or completely in a longitudinal groove of a Schwann cell. (gray matter).

Parts of Schwann cells that contain most of the cytoplasm and nuclei, found wrapped around outside the myelin sheath.

Neuroglias (found in PNS) that encase the large axons of peripheral neurons in lipid-rich sheaths.

The myelin layer coating, made of lipids and proteins, that wraps around the axon.

An axon with a Myelin sheath. (white matter).

Conducts impulses from receptors in peripheral body parts into the brain or spinal cord. Most unipolar some bipolar. (afferent).

Relays information between neurons in brain and spinal cord. Multipolar. (association/internuncial).

Conducts impulses from the brain or spinal cord out to effectors - muscles or glands. Multipolar. (efferent).