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        | Describe the Dorsal Root Ganglion? |  | Definition 
 
        | It contains the cell bodies of the afferent spinal nerves. |  | 
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        | Where is the dorsal root ganglion located? |  | Definition 
 
        | Along the vertebral column of the spine. |  | 
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        | Is in the spinal cord and is a spider web of collagen fibers. |  | Definition 
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        | Goes from the Forman Magnum to S2. |  | Definition 
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        | Are extensions of the Pia Mater |  | Definition 
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        | Is continuous with the 4th ventricle of the brain |  | Definition 
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        | What three things make up Grey Matter? |  | Definition 
 
        | 1. Posterior Grey Horns-Contain somatic and visceral sensory nuclei. 2. Anterior Grey Horns- Contain somatic Motor Nuclei
 3. Lateral Grey Horns- Contain visceral motor nuclei.
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        | How many pairs of spinal nerves are there? |  | Definition 
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        | Supply the skin and muscles of the back? |  | Definition 
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        | What do the spinal nerves branch into? |  | Definition 
 
        | The dorsal and ventral Rami |  | 
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        | Supply the skin and muscles of the back? |  | Definition 
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        | What do the spinal nerves branch into? |  | Definition 
 
        | The dorsal and ventral Rami |  | 
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        | A lot of nerves together is a? |  | Definition 
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        | T or F There is a plexus in the thoracic region? |  | Definition 
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        | Consists of cutaneous and muscular branches in the ventral rami (C1 to C4 and some of C5) |  | Definition 
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        | Is located deep in the neck in the sternoclediomastoid. |  | Definition 
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        | Damage to what area causes respiratory arrest? |  | Definition 
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        | Name the major nerve of the cervical plexus? |  | Definition 
 
        | The Phrenic Nerve provides the entire nerve supply to the diagram. |  | 
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        | Found in the ventral Rami from C5 to T1. Supports the upper limbs |  | Definition 
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        | What do the superior, middle, and inferior trunks form in the Brachial Plexus? |  | Definition 
 
        | They divide into the Anterior and Posterior divisions which hold the Lateral, Posterior, and Medial Chord. |  | 
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        | The axillary is found where? |  | Definition 
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        | The Musculocutaneous is where? |  | Definition 
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        | Supplies the abdominal wall, external Gentiles, and anterior/medial thigh |  | Definition 
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        | Arises from the ventral divisions of the second, third, and fourth lumbar nerves. |  | Definition 
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        | Arises from the dorsal divisions of the 2nd, 3d, and 4th lumbar nerves. |  | Definition 
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        | Is the most inferior of the plexuses? |  | Definition 
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        | Name the two major nerves of the sacral plexus? |  | Definition 
 
        | Sciatic Nerve and Pudendal Nerve |  | 
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        | Supplies buttocks, perineum, and part of the lower limb? |  | Definition 
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        | Is derived from the spinal nerves L4 through L3. Begins in the lower back and runs down the buttock. |  | Definition 
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        | What forms the sciatic Nerve? |  | Definition 
 
        | Te common Fibular Nerve and Tibular Nerve behind the knee. |  | 
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        | Is the area of skin supplied by one spinal nerve? |  | Definition 
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        | What do Spinal reflexes do? |  | Definition 
 
        | They are an automatic response to a change in the environment. Example- Reaction to a hot stove. |  | 
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        | What is the most common meylination problem? |  | Definition 
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        | How do you know from an MRI that a person has MS? |  | Definition 
 
        | The grey matter will be a lot larger with white platlets |  | 
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