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Nerves
...  central nervous system. Nerves can be further categorized based on where they are connected. The two categories are: Spinal nerves that are connected through the spinal column to the spinal cord and cranial nerves that are directly connected to the brainstem. Spinal nerves are given letter and number designations whereas cranial nerves are assigned roman numerals from 1 to 12. Nerves transmit  ...

Parasympathetic Division
...  threats or emergencies. Process It cannot function properly, though, without these essential related parts. Axons are found in preganglionic neurons to form a connection between spinal and cranial nerves, all the way to the terminal ganglia. The preganglions are cell bodies located in the oculomotor nerve, brainstem, vagus nerve, facial nerve, glossopharyngeal nerve, and in the spinal  ...

Abducens Nerve
...  nervous system. The peripheral nervous system is further subdivided into the autonomic nervous system and the sensory-somatic nervous system. The sensory-somatic system consists of 12 pairs of cranial nerves and 31 pairs of spinal nerves. The sixth pair among these 12 pairs is the abducens nerves. Anatomy books sometimes refer to the Abducens nerve as the “abducent nerve” or  ...

Accessory Nerve
...  accessory nerve controls particular muscles in the neck. It is one of the eleventh pair of the twelve pairs of cranial nerves. There are twelve cranial nerves found in the sensory-somatic system. The sensory-somatic system forms one of the two subdivisions of the peripheral nervous system. The peripheral nervous system, together with the central nervous system, comprises the nervous system.  ...

Medulla Oblongata
...  information to the other side of the body when necessary. The gray matter within the medulla oblongata houses a diverse number of vital nuclei reserved for the purpose of sensory relay and for the cranial nerves as well. Inside the fourth ventricle also lies the nucleus ambiguous and the hypoglossal nucleus. It creates the central structure that brings the glossopharyngeal accessory and  ...

Pons
...  fiber in two principle directions. One, it transversely extends throughout the middle part of cerebellar peduncles. The surface then makes a connection with the cerebellum. The pons houses the cranial nerves which is responsible for producing various actions such as chewing and having sensation. It also controls a several number of eye and facial movements, the rate and depth of each  ...


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