Term
| ________ cells line the ventricles of the brain and the spinal cord. |
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Definition
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Term
| The function of ependyma cells is to __________. |
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Definition
| move CSF through the ventricular system |
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Term
| The ___________ is spaces in the brain and spinal cord where CSF flows. |
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Definition
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Term
| The ____________ secretes CSF. |
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Definition
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Term
| The __________ plays a significant role in the blood brain barrier. |
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Definition
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Term
| __________ neurons detect change in the external environment or internal environment and send information about these changes to the CNS. |
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Definition
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Term
| ________ neurons control contraction of a muscle or secretion of a gland. |
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Definition
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Term
| __________ are neurons located entirely within the CNS. |
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Definition
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Term
| __________ receive sensory information from other neurons or receptors. |
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Definition
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Term
| ________ are extensions from the cell body. |
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Definition
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Term
| The cell body is also known as the _________ or _________. |
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Definition
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Term
| The _________ contains a nucleus. |
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Definition
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Term
| The _________ is the synthesizing center for the neuron. |
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Definition
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Term
| The _______ is a single process that extends from the cell body. |
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Definition
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Term
| The ________ transmits information from the cell body to the terminal boutons. |
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Definition
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Term
| ____________ transmit neuronal output. |
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Definition
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Term
| List the neuronal zones in order. |
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Definition
1. Input Zone
2. Integration Zone
3. Conduction Zone
4. Output Zone |
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Term
True or False:
A nerve is a single cell. |
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Definition
| False: a nerve is a group of fibers traveling together. |
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Term
True or False:
Information in nerves can travel in both directions. |
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Definition
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Term
True or False:
Information in a neuron can travel in both directions. |
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Definition
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Term
| Sensory nerves receive _______ information. |
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Definition
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Term
| Motor nerves send _______ information. |
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Definition
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Term
| Supporting cells in the nervous system are called _________. |
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Definition
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Term
True or False:
Neuroglia have no action potentials. |
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Definition
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Term
True or False:
Neuroglia are able to divide. |
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Definition
| True (they are the sources of tumors of the nervous system) |
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Term
True or False:
Neuroglia form synapses. |
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Definition
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Term
| _____________ recycle neurotransmitters. |
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Definition
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Term
| __________ secrete neurotrophic factors that stimulate growth and maintenance. |
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Definition
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Term
| __________ maintain appropriate ionic composition of extracellular fluid surrounding neurons. |
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Definition
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Term
| _________ dictate the number of synapses formed on neuronal surfaces. |
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Definition
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Term
| _________ regulate the blood brain barrier. |
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Definition
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Term
| _________ underlie the inflammation response that occurs following damage to the CNS. |
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Definition
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Term
| _________ protect against invasion of microorganisms. |
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Definition
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Term
| _________ remove debris left by dead or degerating neurons and glia. |
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Definition
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Term
| ______________ form myelin sheaths around the brain and spinal cord. |
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Definition
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Term
| Bare spots between myelin sheaths along the axon are called ____________. |
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Definition
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Term
| _________ is an electrical insulator. |
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Definition
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Term
True or False:
Myelin wraps in multiple layers. |
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Definition
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Term
| _________ provide support to axons. |
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Definition
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Term
| Oligodendrocytes are responsible for myelination in the ______, while Schwann cells are responsible for myelination in the ______. |
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Definition
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Term
| Schwann cells are also called __________. |
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Definition
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Term
| The Schwann cell membrane, which forms the myelin sheath, is composed primarily of ______. |
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Definition
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Term
| Myelin _______ the transmission rate of action potentials along axons. |
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Definition
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