Sixth cranial nerve
to supply a muscle called the lateral rectus muscle that moves the eye outward.
Paralysis of the abducent nerve may cause inward turning of the eye (esotropia) leading to double vision.
All 12 cranial nerves, the abducent nerve included, emerge from or enter the skull (the cranium), as opposed to the spinal nerves which emerge from the vertebral column.
The word “abducent” comes from the Latin “ab-“, away from + “ducere”, to draw = to draw away. The abducent (or abducens) operates the lateral rectus muscle that draws the eye toward the side of the head. The abducent nerve is also called the abducens nerve.
Read Also:
- Sixth disease
A viral disease of infants and young children with sudden onset of high fever which lasts several days and then suddenly subsides leaving in its wake a fine red rash. The causative agent is herpesvirus type 6 so the disease is known as Sixth Disease. Also known as Exanthem subitum (sudden rash), Pseudorubella, Roseola, Roseola […]
- Sjogren of Sjogren syndrome
Henrik Samuel Conrad Sjögren, Swedish ophthalmologist (1899-1986), who described the sicca syndrome, a chronic disease, commonly called Sjögren’s syndrome today. Sjögren graduated in medicine in 1922 from the Karolinska Institute in Stockholm and in 1925 first saw a patient with what was to become his syndrome. Sjögren accumulated another 4 cases and published a paper […]
- Sjogren syndrome
An autoimmune disease that classically combines dry eyes, dry mouth, and another disease of the connective tissues such as rheumatoid arthritis (most common), lupus, scleroderma or polymyositis. Inflammation of the glands that produce tears (the lacrimal glands) leads to decreased tears and dry eyes. Inflammation of the glands that produce the saliva in the mouth […]
- Sjogren-Larsson syndrome
NAD+ oxidoreductase deficiency (FAO deficiency); as fatty aldehyde dehydrogenase deficiency (FALDH deficiency); or as fatty aldehyde dehydrogenase 10 deficiency (FALDH10 deficiency).
- Skeletal dysplasia
One of a large contingent of genetic diseases in which the bony skeleton forms abnormally during fetal development. Achondroplasia is one form of skeletal dysplasia.