Governs voluntary, precise movement of the distal limbs. Its fibers decussate in the medullary pyramids.
[THE HUMAN BRAIN] | +------------------+------------------+ | | [Cerebrum] [Brainstem] ├── Frontal Lobe ├── Midbrain ├── Parietal Lobe ├── Pons ├── Occipital Lobe └── Medulla Oblongata └── Temporal Lobe | [Cerebellum] The Cerebral Lobes and Core Functions
31 pairs of nerves exiting the spinal cord via intervertebral foramina. Functional Divisions: neuroanatomy notes pdf
Processes fear, aggression, and emotional salience.
in different brain areas. Let me know what you need to focus on! What is Neuroanatomy? - News-Medical.Net Governs voluntary, precise movement of the distal limbs
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Dorsal (Sensory Input) \ | / \ ___|___ / | _ _ | Lateral Column | |_|_| | Lateral Column | | | | / | | \ / ___|_|___ \ / | \ Ventral (Motor Output) Ascending (Sensory) Pathways What is Neuroanatomy
Manages auditory processing, language comprehension (Wernicke's area), memory formation, and emotion.
Sudden neurological deficits; contralateral hemiparesis, aphasia, or vision loss. Substantia Nigra (Basal Ganglia)
Memorizing the 12 cranial nerves is a non-negotiable requirement for neuroanatomy mastery. Primary Function Clinical Presentation of Lesion Anosmia (loss of smell) CN II Visual field deficits (blindness) CN III Oculomotor Eye movement, pupil constriction Ptosis, down-and-out eye alignment CN IV Superior oblique muscle (down/in eye movement) Vertical diplopia (double vision) CN V Trigeminal Facial sensation, muscles of mastication Loss of facial sensation, weak jaw deviation CN VI Lateral rectus muscle (eye abduction) Medial strabismus (inward-turning eye) CN VII Facial expression, taste (anterior 2/3), tearing Bell's Palsy (facial drooping) CN VIII Vestibulocochlear Hearing and balance Vertigo, tinitus, sensorineural hearing loss CN IX Glossopharyngeal Taste (posterior 1/3), swallowing, parotid gland Loss of gag reflex, dysphagia CN X Parasympathetic innervation, vocal cords, swallowing Uvula deviates away from side of lesion CN XI Shoulder shrug (trapezius), head turning (SCM) Weakness shrugging shoulders CN XII Hypoglossal Tongue movement Tongue deviates toward side of lesion 6. Ventricles and Cerebrospinal Fluid (CSF) Flow
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