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Cranial Nerves - Anatomy & Physiology (view source)
Revision as of 16:21, 11 August 2011
, 16:21, 11 August 2011→Introduction
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Many of the cranial nerves with nuclei within the brain stem contain sensory and motor neurone components. The sensory fibre components have their cell bodies located in ganglia outside the central nervous system and the motor fibre element have their cell bodies within the central nervous system.
Many of the cranial nerves with nuclei within the brain stem contain sensory and motor neurone components. The sensory fibre components have their cell bodies located in ganglia outside the central nervous system and the motor fibre element have their cell bodies within the central nervous system.
==Cranial Nerve Fibre Types==
Cranial nerves are best explained by function:
*'''General Somatic Motor (GSM)'''
Motor cortex —→ Motor nuculi —→ Muscle
*'''General Visceral Motor (GVM)'''
Brainstem —→ Parasympathetic nuculi —→ Parasympathetic ganglion —→ Gland etc
*'''"Branchial motor" - Special Visceral Motor (SVM)'''
Motor cortex —→ Motor nuculi —→ Muscle
*'''General Somatic Sensory (GSS) and General Visceral Sensory (GVS)'''
Sensory cortex —→ Thalamus —→ Trigeminal nuculi —→ Trigeminal ganglion —→ Skin etc
===Special sensory fibres (SSS + SVS):===
'''[[Nose - Anatomy & Physiology|Smell]]''' '''SVS'''
Priform cortex —→ Olfactory tubercle —→ Olfactory Bulb —→ '''SMELL'''
'''[[Eye - Anatomy & Physiology|Vision]]''' '''SSS'''
Occipital cortex —→ Thalamus MGN —→ Rostral colliculus/Retinal ganglion cell —→ Bipolar cell —→ '''VISION'''
'''[[Ear - Anatomy & Physiology|Hearing/Balance]]''' '''SSS'''
Temporal cortex —→ Thalamus MGN —→ Caudal colliculus and hindbrain —→ Spiral ganglion —→ '''HEARING'''
'''[[Gustatory System - Anatomy & Physiology|Taste]]''' '''SVS'''
Sensory cortex —→ Thalamus —→ Hindbrain (VII, IX, X) —→ Ganglion —→ '''TASTE'''
==Cranial Nerves==
==Cranial Nerves==