| optical righting reflexes | Visual stimuli that enable an animal to maintain the correct position of the head in space, by bringing about movements of the muscles of the neck and limbs. (05 Mar 2000) |
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| utricular reflexes | See: statotonic reflexes. (05 Mar 2000) |
| labyrinthine reflexes | Reflex's initiated through stimulation of receptors in the utricle or saemicircular canals. See: statotonic reflexes, statokinetic reflex, righting reflexes. (05 Mar 2000) |
| labyrinthine righting reflexes | Stimulation of the proprioceptors of the labyrinth causes changes in tone of the neck muscles which bring the head into its natural position in space. (05 Mar 2000) |
| anatomical neck of humerus | A groove separating the head of the humerus from the tuberosities, giving attachment to the articular capsule. Synonym: collum anatomicum humeri. (05 Mar 2000) |
| anterior region of neck | The area of the neck bounded by the mandible, the anterior border of the sternocleidomastoid muscle, and the anterior midline of the neck; it is subdivided into carotid, muscular, submandibular, and submental triangles. Synonym: anterior region of neck, regio cervicalis anterior, trigonum cervicale anterius. (05 Mar 2000) |
| anterior triangle of neck | The area of the neck bounded by the mandible, the anterior border of the sternocleidomastoid muscle, and the anterior midline of the neck; it is subdivided into carotid, muscular, submandibular, and submental triangles. Synonym: anterior region of neck, regio cervicalis anterior, trigonum cervicale anterius. (05 Mar 2000) |
| buffalo neck | Combination of moderate kyphosis with thick heavy fat pad on the neck, seen especially in persons with Cushing's disease or syndrome. (05 Mar 2000) |
| bull neck | A heavy thick neck caused by hypertrophied muscles or enlarged cervical lymph nodes. (05 Mar 2000) |
| radical neck dissection | The most commonly performed major operation for head and neck malignancies, most of which are squamous cell carcinomas. The neck is opened laterally, the majority of the sternocleidomastoid muscle is removed, as are the regional cervical lymph nodes, the jugular vein, the spinal accessory nerve, the submaxillary gland and most of the parotid gland. There are several modifications. (12 Dec 1998) |
| Madelung's neck | Multiple symmetric lipomatosis (Madelung's disease) confined to the neck. (05 Mar 2000) |
| regions of neck | The topographical subdivisions of the neck. Synonym: regiones cervicales, neck. (05 Mar 2000) |
| median vein of neck | A vein occasionally present due to fusion of the two anterior jugular vein's. (05 Mar 2000) |
| webbed neck | The broad neck due to lateral folds of skin extending from the clavicle to the head but containing no muscles, bones, or other structures; occurs in Turner's syndrome and in Noonan's syndrome. (05 Mar 2000) |
| mucous neck cell | One of the acidic mucin-secreting cell's in the neck of a gastric gland. (05 Mar 2000) |