Term
|
Definition
| Nerve Cells that respond to physical chemical changes in their surroundings |
|
|
Term
|
Definition
| Extensions on the neuron that recieve stimuli |
|
|
Term
|
Definition
| Carries nerve inmpulse away from cell body of neuron |
|
|
Term
|
Definition
| Space between axon of one neuron and dendrites of another neuron |
|
|
Term
|
Definition
| A neuroglial cell in PNS that wraps itself around axons |
|
|
Term
|
Definition
| Fatty substance made by schwann cells to insulate parts of the axon |
|
|
Term
| White, Faster, Motor neurons |
|
Definition
| What are characteristics of myelinated axons? |
|
|
Term
| Unipolar, Bipolar, Multipolar |
|
Definition
| What are the structural/anatomical neuron groups |
|
|
Term
| Sensory, Motor, Interneurons |
|
Definition
| What are the three funtional neuron groups? |
|
|
Term
| Sensory (afferent) neurons |
|
Definition
| What are the neurons that carry impulses to the brain? |
|
|
Term
|
Definition
| What are the neurons that carry impulses from the brain out to the effectors |
|
|
Term
|
Definition
| Neurons in brain or spinal cord that link neurons together |
|
|
Term
|
Definition
| A disease where myelin becomes inflamed due to autoimmune responses and the myelin deteriorates and forms scar tissue. Impulses are impaired. |
|
|
Term
|
Definition
| They support neurons structurally and provide nutrition for neurons; they create the blood/brain barrier. |
|
|
Term
|
Definition
| provides myelin on several axons |
|
|
Term
|
Definition
| phagocytize bacteria and debris |
|
|
Term
|
Definition
| create lining around the brain and ventricles |
|
|
Term
| 1. Distal severed axon deteriorates leaving only the neurilemmal sheath of the Schwann cells behind 2. Proximal end of axon sprouts and is guided towards the effector by the neurilemmal sheath. 3. Schwann cells proliferate on new sprouted axon |
|
Definition
| What are the the steps of nerve regeneration? |
|
|
Term
|
Definition
| excess myelin impairs NS function due to myelin accumulating because of a missing lysosomal enzyme. Death occurs by age 4.missing gene |
|
|
Term
| Central Nervous System (CNS) because oligodendrocytes don't have neurilemma |
|
Definition
| Where is nerve regeneration very unlikely to occur? |
|
|
Term
|
Definition
| What is the structural and functional unit of the nervous system? |
|
|
