Research Results For 'Abducens'

ABDUCENS

The Abducens (or Sixth Cranial Nerve) rises in the medulla oblongata and supplies the external rectus muscle of the eye, which draws the eyeball outward.
Research Abducens

CRANIAL NERVE

The twelve cranial nerves innervate the muscles and skin of the head, neck, and, in the case of the vagus, sacral, and spinal accessory nerves, many other important structures throughout the body. These nerves originate in the pons, the forebrain, medulla oblongata, and the uppermost part of the spinal cord, between the first few cervical vertebrae.

The first four include the olfactory (1st), which innervates the nasal mucous layer and allows the sense of smell, the optic (2nd) which innervates the retina and allows the sense of sight, the oculomotor (3rd) which innervates the pupil and cilia of the eye, and the trochlear (4th) which innervates the superior oblique eye muscles. The next cranial nerve is the trigeminal (5th) which has three divisions: the ophthalmic (eye), maxillary (upper palate and face), and mandibular (jawbone, tongue, and auriculotemporal region). The sixth, seventh, and eighth nerves are the abducens (lateral rectus of eye), the facial (face and ear muscles), and the acoustic (outer and inner ear structures), respectively. The ninth cranial nerve is the glossopharyngeal, which innervates the pharynx, tongue, and tympanus of the ear. The tenth cranial nerve, the vagus, has many branches which innervate a number of important structures, including the heart, lungs, and stomach. The eleventh cranial nerve is the accessory spinal nerve, which innervates structures of the neck and throat, including the pharynx and the cervical lymph glands. The twelfth cranial nerve is the hypoglossal nerve, which innervates the tongue.
Research Cranial nerve

RECTUS LATERALIS MUSCLE

The rectus lateralis (abducens oculi; rectus externus) muscle pulls the eye to the outside. It works in conjunction with the other eye muscles to move the eye. The rectus lateralis originates from a ring of tendons within the orbit and inserts in the sclera near the cornea. It is innervated by the abducens nerve (VI cranial nerve). The brain sends messages along the nerve to the muscles in each eye, causing them to move both eyes in the same direction at once. When there is an imbalance in strength of these muscles, a person may appear cross- eyed, or wall-eyed.
Research Rectus Lateralis Muscle

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