Term
| Central Nervous System (CNS) is made up of? |
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Definition
Brain (cerebrum, cerebellum, and brain stem)
Spinal cord |
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Term
Perikaryon part of the neuron receives nerve endings that transmit _________ or ________ stimuli from other neurons.
The nucleus is usually large and contains mostly euchromatin and a prominent nucleolus (looks like a _________). |
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Definition
This part of the neuron receives nerve endings that transmit excitatory or inhibitory stimuli from other neurons.
The nucleus is usually large and contains mostly euchromatin and a prominent nucleolus (cat’s eye). |
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Term
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Definition
| Bipolar neurons have an axon and dendrite and found in the retina, olfactory epithelium, and acoustic ganglia. |
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Term
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Definition
| Multipolar neurons have an axon and two or more dendrites and found throughout the nervous system and autonomic ganglia and are the most numerous neurons. |
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Term
Pseudounipolar neurons have a single process which divides into two branches for a ____________.
These neurons are found in the cranial and spinal ganglia of the _________ nervous system. |
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Definition
Pseudounipolar neurons have a single process which divides into two branches for a "T"-shaped structure.
These neurons are found in the cranial and spinal ganglia of PNS. |
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Term
| The perikaryon (_____________) is the trophic center of the cell, but can also be receptive to _________. |
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Definition
| The perikaryon (neuron cell body) is the trophic center of the cell, but can also be receptive to stimuli. |
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Term
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Definition
| Rough ER and free Ribosomes in the Perikaryon |
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Term
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Definition
| injury to the neuron causing a reduction in the nissl bodies |
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Term
What is found only in the perikaryon?
What is found through the whole neuron? |
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Definition
Only in the perikaryon- golgi bodies
found in body, dendrites, and axon- mitochondria |
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Term
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Definition
| Are intermediate filaments that are used for immunocytochemically find neurons |
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Term
| Microtubules play a structural role in the perikaryon and processes and are also involved in mitosis, cytokinesis, and vesicular __________. |
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Definition
| Microtubules play a structural role in the perikaryon and processes and are also involved in mitosis, cytokinesis, and vesicular transport. |
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Term
| 4 types of Glial cells in the CNS? |
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Definition
1. Astrocytes: Protoplasmic andFibrous
2. Oligodendrocytes: Myelinating and Satellite
3. Ependymal cells
4. Microglia |
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Term
There are about ______ glial cells per neuron.
Some glial cells (astroctyes specifically) _____ divide unlike neurons. |
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Definition
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Term
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Definition
Largest glial cell
Most abundant glial cell
star shaped |
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Term
Protoplasmic astrocyte found in: ____ matter
Fibrous astrocytes are found in: ______ matter |
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Definition
Protoplasmic- gray matter
fibrous- white matter |
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Term
| Fibrous astrocytes have a high amount of? |
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Definition
| glial fibrillary acidic protein (GFAP) |
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Term
| GFAP is used to immunocytochemically to detect ________ in CNS tissue (and the optic nerve |
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Definition
| GFAP is used to immunocytochemically to detect astrocytes in CNS tissue (and the optic nerve |
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