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brain lobes
- makes up the cerebrum
- 1. frontal
- 2. parietal
- 3. temporal
- 4 occipital
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role of frontal
thought process/personality
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role of occipital
visual cortex
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role of parietal
Broca's area/speech
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Broca's area
functions related to speech production
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Midbrain
extends from pons to diancephelon
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diencephalon,
superior to the midbrain, consists of the thalamus, hypothalamus and epithalamus
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CerebroSpinalFluid
clear liquid that protects brain and spinal cord from chem & physical injuries
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Brain stem
- consists of
- 1. medulla oblongata
- 2. pons
- 3. reticular formation
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role of medulla oblongata
involved in respiratory and other visceral actions, such as organ movement. Also aids in balance
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role of pons
controls organs and respitory
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role of reticular formation
aids in SLEEP cycle - injury to this causes a COMA
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role of cerebellum
- controls balance
- aids in fine motor movements, ie writing
- aids in learning physical movements, ie basketball players utilize this to play well
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Cranial nerves
- 12 in total, there are two more that are under discussion
- cranial nerve 0 and cranial nerve 13
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possible role of cranial nerve 0
sexual stimulation, sensory
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possible role of cranial nerve 13
glossal nerve, mainly motor, for speech articulation
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CN1 - olfactory nerve
sensory, transmits sense of SMELL
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CN2 - optic nerve
sensory, transmits visual info
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CN3 - ocularmotor nerve
Mainly motor, aids in eye movement
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CN4 - trochlear nerve
mainly motor, aids in eye movement
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CN5 - Trigeminal nerve
- mainly sensory
- 3 sensations:
- V1 - orbital
- V2 - maxillary
- V3 - mandibular
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CN6 - Abducens nerve
motor, movement of the eye, usually when damage results in eye directed medially
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CN7 - facial nerve
sensory and motor, helps with facial expressions
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CN8 - vestibularcochlear nerve
sensory, aids in hearing and balance, gravity and rotation
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CN9 - Glossoppharyngeal nerve
- sensor and motor, aids in TASTE
- posterior 1/3
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CN10 - Vagus nerve
- sensory and motor
- aids in visceral motor and control of body organs
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CN11 - Accessory nerve
motor, aids in back movement of vertebrae, sternocleidomastoid and trapezius
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CN12 - Hypoglossal
Motor, aids in movement of the tongue during speech and swallowing
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