By Stanley Monkhouse
This clincally orientated survey of cranial nerve anatomy and serve as offers the most anatomical positive factors of every nerve, via medical facets and information of scientific trying out. basic line diagrams accompany the text.
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Extra info for Cranial nerves : functional anatomy
2. Cranial nerve motor nuclei. 3) Cranial nerve Upper medulla Medulla Salivatory: inferior Dorsal motor of vagus Glossopharyngeal IX Vagus X Facial VII * Cranial nerve with branchial arch. ** Cranial nerve conveying fibres from brain stem. 2. ; iris muscle: pupilloconstriction Secretomotor: lacrimal, nasal, palate, submandibular, sublingual glands Secretomotor: parotid gland Heart, foregut and midgut derivatives Sternocleidomastoid, trapezius Function Cranial nerve motor fibres and nuclei 23 EW Oc Tr III IV TM F Ab SSN ISN V DMNX VI VII Hyp NA IX Acc X XII XI Fig.
Cutaneous sensation), see also Fig. 1. glossopharyngeal nerve (IX) have cell bodies in the superior glossopharyngeal ganglion. Central connections of somatosensory fibres Regardless of the nerve in which they are carried to the brain stem, within the CNS all somatosensory fibres pass to the sensory nuclei of the trigeminal nerve. This takes its name because the trigeminal nerve is its biggest single contributor. 1 lists somatic, sensory and visceral sensory ganglia and nuclei. 1. Cranial nerve sensation, ganglia and nuclei.
Brain stem course Axons of upper motor neurons descend through the central portions of the cerebral peduncles (crura) of the midbrain ventral to the substantia nigra and proceed as far as necessary, decussating just before synapsing on lower motor neuron cell bodies in the 26 Organization of the cranial nerves Motor cortex Fibres pass through internal capsule Fibres pass through cerebral peduncles of midbrain Oculomotor and trochlear nuclei in midbrain Trigeminal motor nucleus in pons Facial motor nucleus in pons Abducens nucleus in pons Nucleus ambiguus and hypoglossal nucleus in medulla Fig.