A&p Final

Front 1

The proteins needed by neuron are synthesized...

Back 1

in the cell body and transported to the axon

Front 2

Slow axonal transport

Back 2

moves materials down the axon and supplies new axoplasm needed for development or regenerating neurons

Front 3

Fast axonal Transport

Back 3

Uses protein "motors to move materials and organelles in both directions between the soma and the axon terminals

Front 4

How do pathogens invade the nervous system?

Back 4

by entering the synaptic knob and using fast axonal transport to travel to soma.

Front 5

Unipolar Neurons

Back 5

have a single axon that extends away from the soma
-usually found in nerves that carry sensory signals to spinal cord

Front 6

Bipolar Neurons

Back 6

Have a single axon and a single dendrite.
-found in retina of eye, inner ear, and nose.

Front 7

Multipolar Neurons

Back 7

Have a single axon and many dendrites.
-Found in brain and spinal cord

Front 8

Anaxonic Neurons

Back 8

Have no axon and multiple dendrites.
-found in retina of eye

Front 9

Neuroglia

Back 9

Fill spaces between neurons and provide support for neurons.

Front 10

Gliomas

Back 10

Malignant brain tumors made of glial cells that actively undergo mitosis

Front 11

Astrocytes

Back 11

Are the most abundant glial cells in the CNS

Front 12

Organization of Astrocytes

Back 12

Star-shaped cells with many processes that cover brain and form support framework for nervous tissue

Front 13

Function of Astrocytes

Back 13

-produce scar tissue when neurons are damaged
-form tight junctions with the endothelial cells of blood capillaries to produce a blood-brain barrier
-maintain the proper balance of potassium ions for generating nerve impulses

Front 14

Oligodendrocytes

Back 14

Wrap around neurons to produce a myelin sheath, which forms insulating layer around neuron

Front 15

Where are Oligodendrocytes found?

Back 15

In the CNS
-possess fewer processes than astrocytes

Front 16

Ependymal Cells

Back 16

line cavaties in the brain and spinal cord where they secrete cerebrospinal fluid that circulates through CNS

Front 17

Microglia

Back 17

Small macrophages scattered throughout the CNS that phagocytize bacteria htat invade the CNS and remove debris caused by tissue damage.

Front 18

Schwann Cells

Back 18

Found in the PNS where they form a neurilemma around neurons.
-Produce a myelin sheath around neurons in the PNS and assist in regenerating peripheral neurons

Front 19

Satellite Cells

Back 19

Found in the PNS around nerve cell bodies

Front 20

Myelin

Back 20

A lipoprotein that forms an insulating sheath around an axon in order to increase the speed at which a nerve signal travels along a neuron