Changes

===Afferent Fibres - Sensory===

===Afferent Fibres - Sensory===

====General Somatic Afferent (GSA)====

====General Somatic Afferent (GSA)====

This type of fibre is used in the majority of basic senses including temperature, touch and pain.

This type of fibre is used in the majority of basic senses including temperature, touch and pain. These fibres mainly supply sensation to various areas of the head including to the skin and face via the trigeminal nerve (cranial nerve V); to the skin of the external ear via the trigeminal nerve (cranial nerve V), the facial nerve (cranial nerve VII), the glossopharyngeal nerve (cranial nerve IX) and via the vagus nerve (cranial nerve X); to the mucosae of the oral cavity via the trigeminal nerve (cranial nerve V) and to the meningies of the brain via the trigeminal nerve (cranial nerve V) and the vagus nerve (cranial nerve X).

====Special Somatic Afferent (SSA)====

====Special Somatic Afferent (SSA)====

The special signifies that this fibre type is found in nerves related to the special senses which include vision and hearing. This therefore relates to the optic nerves (cranial nerve II) and the auditory/vestibular systems which are the vestibulocochlear nerves (cranial nerve VIII).

The special signifies that this fibre type is found in nerves related to the special senses which include vision and hearing. This therefore relates to the optic nerves (cranial nerve II) and the auditory/vestibular systems which are the vestibulocochlear nerves (cranial nerve VIII).

====General Visceral Afferent (GVA)====

====General Visceral Afferent (GVA)====

This fibre type is commonly found in sensory nerves to organs and to sensory tissues related to chemicals.

This fibre type is commonly found in sensory nerves to organs and to sensory tissues related to chemicals. These include fibres found in the glossopharyngeal nerves (cranial nerve IX) and the vagus nerves (cranial nerve X).

====Special Visceral Afferent (SVA)====

====Special Visceral Afferent (SVA)====

This fibre type is found again in special sense organs including taste and olfaction.  

This fibre type is found again in special sense organs related to the sensing of chemicals and therefore including taste and olfaction. The olfactory sense relates to the olfactory nerve (cranial nerve I) and the taste senses relate to the facial nerve (cranial nerve VII), the glossopharyngeal nerve (cranial nerve IX) and the vagus nerve (cranial nerve X). The sense of taste is performed by the gustatory organ which are cells located in gustatory papillae in the mucous membrane of the dorsal side of the tongue. Taste buds can also be found in the soft palate, pharynx, larynx, lips and cheeks.

This type of nerve fibre is mainly found in nerves supplying skeletal muscles.

*'''General Somatic Motor (GSM)'''

*'''General Somatic Motor (GSM)'''