ANATOMY 3300 Lecture Notes - Lecture 7: Trapezius Muscle, Mastication, Brainstem
24 Apr 2018
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Thursday, july 20: spinal cord, brain, cranial nn. , eyeball. Netanatomy images: radiographic anatomy>head & neck: 2, 19 and cross-sectional. Spinal cord facts: protected by vertebra, ligaments, muscles, spinal meninges, and cerebrospinal fluid, begins at: foramen magnum l2 in adults. Parts of the spinal cord: spinal nerves = 31 pairs, cervical = c1-c8, thoracic = t1-t12, lumbar= l1-l5, sacral = s1-s5, coccygeal (c1) Anterior root (motor) and posterior root (sensory) unite within the intervertebral foramen . Skull dura subdural space arachnoid subarachnoid space pia cortex of brain. Inside longitudinal fissure: tentorium cerebelli separating cerebrum from cerebellum, horizontal/ transverse. Inside transverse fissure: falx cerebelli separating two lobes of cerebellum, vertical extension beneath tentorium cerebelli. Brain: major parts cerebrum, cerebellum, medulla oblongata, lobes temporal, parietal, occipital, temporal, central sulcus = separates frontal and parietal lobes, lateral sulcus = separates frontal and parietal lobes from temporal lobe, longitudinal and transverse fissures. 2 key arteries feed the brain = internal carotid aa and vertebral aa.
