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10 Cards in this Set

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  • Back
Nerve Cell
a nerve cel is the basic functional unit in the central nervous system.
Two types of cells in the CNS
Nerve cell( neurons) and neuroglial cells (associational cells)
A nerve cell consists of how many parts
a nerve cell consists of 3 parts cell body (perikaryon, or soma) dendrites, and axon
Cells receive input through
Cells receive impulses primarily via dendrites and secondarily through the soma and the initial segment of th axons.
The cell body of a neuron consists of 2 basic components
A nucleus and cytoplasm
What does cytoplasm consist of>
Cytoplasm consists of protein molecules and an aqueous substance and is enclosed within the cell membrane
Dura mater is attached to the calvaria and divided into two layers
1.the periosteal layer (periosteum)the outer layer
2. The meningeal layer- the inner layer
The meninges consist of 3 concentric fibrous tissue membranes that encase the CNS
1. Dura mater
2. Arachnoid Membrane
3. Pia mater
Describe the dura mater
The dura mater, the gray outermost layer consists of dense, fibrous connective tissue and provides maximum meningeal protection to the CNS. The dura is attached to the inner surface of the skull and overlies the underlying arachnoid.
Falx cerebri
extends longitudinally in the interhemispheric fissure between the two hemispheres. Anteriorly is attached to Christa Galli of the ethnoid bone and posteriorly it extends.