Nerve growth factor
A naturally occurring substance that enhances the growth and survival of cholinergic nerves.
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- Nerve palsy, laryngeal
Paralysis of the recurrent laryngeal nerve, a branch of the vagus nerve (a long and important nerve that originates in the brainstem and runs down to the colon). After the recurrent laryngeal nerve leaves the vagus nerve, it goes down into the chest and then loops back up to supply the larynx (the voice box). […]
- Nerve pathways, visual
The optic nerves serving the eyes join behind the eyes just in front of the pituitary gland to form a cross-shaped structure called the optic chiasma. Within the optic chiasma some of the nerve fibers cross. The fibers from the nasal (inside) half of each retina cross over, but those from the temporal (outside) sides […]
- Nerve, abducent
to supply a muscle called the lateral rectus muscle that moves the eye outward. Paralysis of the abducens nerve causes inward turning of the eye (internal strabismus) leading to double vision. The abducens nerve is the sixth cranial nerve. All 12 cranial nerves, the abducens nerve included, emerge from or enter the skull (the cranium), […]
- Nerve, afferent
A nerve that carries impulses toward the central nervous system.
- Nerve, efferent
A nerve that carries impulses away from the central nervous system.