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19 Cards in this Set
- Front
- Back
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Oculomotor III
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Motor:
- ciliary muscle - pupil constriction - (eye muscle besides superior oblique or lateral rectus) |
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Trochlear IV
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Motor: superior oblique
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Trigeminal V
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Sensory: face, teeth, tongue
Motor: mastication |
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Abducens VI
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Motor: lateral rectus (abducts the eye)
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Facial VII
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Sensory: taste (anterior 2/3)
Motor: facial muscles, saliva, tears |
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Glossopharyngeal IX
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Sensory: Posterior 1/3
Motor: swallowing and saliva |
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Vagus X
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Sensory: 70% parasympathetic
Motor: 70% parasympathetic |
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Accesory XI
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Motor: sternocleidomastoid, trapezius
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Hypoglossal XII
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tongue muscles.
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How many pairs of spinal nerves?
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31
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Dermatomes
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a specific segment of sking supplied by a a single spinal nerve
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Nerve Plexuses
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a network of interweaving spinal nerves
4 principal plexuses: 1. cervical 2. brachial 3. lumbar 4. sacral |
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Cervical Plexus
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C1-C4
innervate anterior neck and parts of head and shoulders - the phrenic nerve innervates the diaphragm |
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Brachial Plexus
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Spinal Nerves C5-T1
- innervates pectoral girdle and upper limbs - 4 nerves from lab |
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Lumbar Plexus
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Spinal Nerves L1-L4
- lower limbs - femoral nerve |
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Sacral Plexus
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Spinal Nerves L4-S4
- lower limbs - sciatic nerve |
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How many vertebrae total?
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33
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How many sacral vertebrae
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5
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How many vertebrae on coccyx
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4
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