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Reference pictures you asked for
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Brain
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Cerebrum: Lobes named by associated bones
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Dicephalon-> Limbic
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Limbic system Thalamus Hypothalamus Pituitary gland
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Lobotomy Malformation Severe nerves connect frontal lobe to rest of brain – Leucotomy ( leucotome) – Ice pick 30’s to 70’s
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Mesacephalon-> Midbrain
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Midbrain
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Rhombencephalon-> Hindbrain
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Hind brain
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CNS
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Meninges
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Can’t differentiate with the naked eye Dura: – Tough – Thick Arachnoid – Delicate – spidery Pia – Meshlike – Thin
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1.Vertebral disc 2.Vertebral body 3.Dura mater 4.Epidural space 5.Spinal chord 6.Subarachnoid space
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vENTRICLES
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An Overview Peripheral Nervous Overview
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General: nonspecific innervation
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Specialized: Specific target
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12 pairs Mostly mixed nerves (with exception of first couple pairs completely sensory) Often innervated along of Autonomic NS Will start with cranial nerves Specific
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Smell Olfactory I
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Sight Optic Nerve II Moves eye
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Sight Oculomotor III Pupil Constriction Acronymn: PEARL
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Sight Trochlear IV Superior Oblique Muscle
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Facial Trigeminal V Mouth, teeth, lips Jaw Eye, scalp
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Eye Lateral Rectus Muscles Abducens VI Failure of lateral rectus muscle (patient trying to following object)
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Facial Nerve VII Taste Facial Expression Tear & Salivary
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Hearing Vestibulocochlear Nerve VIII Diseases Disease can include sensorineural deafness Bilateral benign tumors on nerve sheath
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Tongue & Pharynx Motor (pharynx) Parasympathetic response - salivary Glossopharyngeal IX Mainly Sensory
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Speech Swallow Thorax/Abdominals Note: Vasovagus Syncope Vagus Nerve X Innervations allow:
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Cranial – Soft palate – Pharynx – Larynx Motor – Trapezius – Sternocleidomastoid Accessory Both Cranial and Spinal
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Tongue Speaking Swallowing Hypoglossal XII
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