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28 Cards in this Set
- Front
- Back
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Name the two main components of the CNS? |
Brain and Spinal cord |
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What type of cells are the supporting cells of the CNS and PNS? |
Neuroglial cells |
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Name the 5 supporting cells of the CNS? |
Satellite cells Astrocytes Oligodendrocytes Microglia Ependyma |
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What two types of astrocytes are there? |
Fibrous Protoplasmic |
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What are the three elements of the PNS? |
Nerves, ganglions and supporting cells. |
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What are the two supporting cells of the PNS? |
Schwann cells Sattelite cells |
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What does the autonomic nervous system control? |
Involuntary functions |
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What does the motor system of the autonomic nervous system work on? |
Smooth muscle Cardiac muscle Some glands |
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What are the three components of the autonomic nervous system? |
Sympathetic Parasympathetic Enteric |
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What does the somatic nervous system control? |
Conscious control of voluntary functions. |
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What is the function of Ependymal Cells? |
They line the ventricles of the brain and central canal. They produce, circulate and monitor cerebrospinal fluid. |
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What is the function of microglia? |
They remove cell debris, wastes and phagocytes by phagocytosis. |
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What is the function of astrocytes? |
Maintain the blood brain barrier Provide structural support Regulate ion nutrients and dissolved gas concentrations. Absorbs and recycles neurotransmitters from scar tissue after injury. |
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What is the function of oligodendrocytes? |
They myelinate CNS axons and provide structural framework. |
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What is the function of satellite cells? |
They surround the neuron cell bodies of ganglia and regulate O2, CO2, nutrient and neurotransmitters around neurons in ganglia. |
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What are the three meninges? |
Dura mater Pia mater Arachnoid mater |
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What tissue forms the dura mater? |
Dense connective tissue |
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What is the dura mater fused to? |
Periosteum of the skull |
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What shape are the cells lining the bottom of the dura mater? |
Flat cells |
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Name the space between the dura mater and arachnoidea? |
Subdural space |
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What is the tissue and shape of tissue in the arachnoid mater? |
Composed of thicker layers of connective tissue in cobweb like layers connected to the pia mater. |
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Name the space that exists between the arachnoid mater and pia mater?
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Subarachnoid space |
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What structures can you find in the subarachnoid space? |
Strands Cysterns Arteries Veuns |
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What connects the subarachnoid spaec with the brain ventricles? |
Three foramina's |
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What composes the pia mater? |
Delicate layer of connective tissue |
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What invests the basement membrane of the pia mater? |
Underlying astrocytes |
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What is the glia limitans? |
Combined basement membrane of pia mater and underlying astrocytes. |
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What is the cerebrum made of? |
Two cerebral hemispheres consisting of grey matter on the outside and white matter on the inside. |
