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26 Cards in this Set
- Front
- Back
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1. Olfactory
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Purely sensory; carried impulses for the sense of smell
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II. Optic
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Purely sensory; carries impulses for vision
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III. Oculomotor
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Motor fibers to eye muscle
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IV. Trochlear
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Motor fiber to eye muscle
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V. Trigeminal
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Sensory for the face; motor fibers to chewing muscles
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VI. Abducens
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Motor fibers to eye muscles
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VII. Facial
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Sensory for taste; motor fibers to the face.
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VIII. vestibulocochlear
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Sensory for balance and hearing
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IX. glossopharyngeal
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Sensory for taste; motor fibers to pharynx
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X. Vagus
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Sensory snd motor fibers for pharynx, larynx, viscera
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XI. Accessory
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Motor fibers to neck and upper back
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XII. Hypoglossal
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Motor fibers to tongue
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Blood brain barrier
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Useless against fats and fat soluble molecules, respiratory gases, alcohol, nicotine, anesthesia.
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Cerebrospinal fluid
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Made up of choroid plexus
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Sympathetic
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"The fight or flight". Response to stimulus
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E division
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Exercise, excitement, emergency, embarrassment
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D division
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Digestion, defecation, and diuresis.
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Parasympathetic
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"Housekeeping activities". Conserves energy, maintains daily necessary body functions
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Sympathetic fibers leave spinal cord in?
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Ventral root
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Sacral plexus
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Sciatic nerve in the body splits to common fibular and tibial nerves. Inability to extend hip and flex knee
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PNS- Cranial nerves
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12 pairs of nerves that mostly serve the head and neck. Only the VAGUS NERVES extend to thoracic and abdominal. Most are mixed but only 3 are sensory
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Autonomic and somatic difference in nerves
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Somatic- one motor neuron
Auto- preganglionic and postganglionic nerves |
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Autonomic and somatic difference effector organs
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Somatic- skeletal muscle
Autonomic- smooth muscle, cardiac muscle, glands |
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Difference neurotransmitter
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Somatic- always use acetylcholine
Autonomic- use acetylcholine, epinephrine, norepinephrine |
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PNS- sympathetic divisikb
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Originates from T1- L2
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PNS- Parasympathetic
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Originates from brain stem and S1- S4
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