| serratus anterior | <anatomy, muscle> Origin, from centre of lateral aspect of first eight to nine ribs; insertion, superior and inferior angles and intervening medial margin of scapula; action, rotates scapula and pulls it forward, elevates ribs; nerve supply, long thoracic from brachial plexus. Synonym: musculus serratus anterior, anterior serratus muscle, costoscapularis, musculus serratus magnus. (05 Mar 2000) |
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| anterior serratus muscle | <anatomy, muscle> Origin, from centre of lateral aspect of first eight to nine ribs; insertion, superior and inferior angles and intervening medial margin of scapula; action, rotates scapula and pulls it forward, elevates ribs; nerve supply, long thoracic from brachial plexus. Synonym: musculus serratus anterior, anterior serratus muscle, costoscapularis, musculus serratus magnus. (05 Mar 2000) |
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| musculus serratus anterior | <anatomy, muscle> Origin, from centre of lateral aspect of first eight to nine ribs; insertion, superior and inferior angles and intervening medial margin of scapula; action, rotates scapula and pulls it forward, elevates ribs; nerve supply, long thoracic from brachial plexus. Synonym: musculus serratus anterior, anterior serratus muscle, costoscapularis, musculus serratus magnus. (05 Mar 2000) |
| tuberosity for serratus anterior muscle | <anatomy> A rough oval area, about the middle of the outer surface and lower border of the second rib, for the attachment of the serratus anterior muscle. Synonym: tuberositas musculi serrati anterioris. (05 Mar 2000) |
| musculus serratus magnus | <anatomy, muscle> Origin, from centre of lateral aspect of first eight to nine ribs; insertion, superior and inferior angles and intervening medial margin of scapula; action, rotates scapula and pulls it forward, elevates ribs; nerve supply, long thoracic from brachial plexus. Synonym: musculus serratus anterior, anterior serratus muscle, costoscapularis, musculus serratus magnus. (05 Mar 2000) |
| musculus serratus posterior inferior | <anatomy, muscle> Origin, with latissimus dorsi, from spinous processes of two lower thoracic and two upper lumbar vertebrae; insertion, into lower borders of last four ribs; action, draws lower ribs backward and downward; nerve supply, ninth to twelfth intercostal. Synonym: musculus serratus posterior inferior, inferior posterior serratus muscle. (05 Mar 2000) |
| musculus serratus posterior superior | <anatomy> Origin, from spinous processes of two lower cervical and two upper thoracic vertebrae; insertion, into lateral side of angles of second to fifth ribs; nerve supply, first to fourth intercostals. Synonym: musculus serratus posterior superior, superior posterior serratus muscle. (05 Mar 2000) |
| serratus posterior inferior | <anatomy, muscle> Origin, with latissimus dorsi, from spinous processes of two lower thoracic and two upper lumbar vertebrae; insertion, into lower borders of last four ribs; action, draws lower ribs backward and downward; nerve supply, ninth to twelfth intercostal. Synonym: musculus serratus posterior inferior, inferior posterior serratus muscle. (05 Mar 2000) |
| serratus posterior superior muscle | <anatomy> Origin, from spinous processes of two lower cervical and two upper thoracic vertebrae; insertion, into lateral side of angles of second to fifth ribs; nerve supply, first to fourth intercostals. Synonym: musculus serratus posterior superior, superior posterior serratus muscle. (05 Mar 2000) |
| superior posterior serratus muscle | <anatomy> Origin, from spinous processes of two lower cervical and two upper thoracic vertebrae; insertion, into lateral side of angles of second to fifth ribs; nerve supply, first to fourth intercostals. Synonym: musculus serratus posterior superior, superior posterior serratus muscle. (05 Mar 2000) |
| inferior posterior serratus muscle | <anatomy, muscle> Origin, with latissimus dorsi, from spinous processes of two lower thoracic and two upper lumbar vertebrae; insertion, into lower borders of last four ribs; action, draws lower ribs backward and downward; nerve supply, ninth to twelfth intercostal. Synonym: musculus serratus posterior inferior, inferior posterior serratus muscle. (05 Mar 2000) |
| anterior part of anterior commissure of brain | The anterior part of the anterior or rostral commissure of the brain. Synonym: pars anterior commissurae rostralis, pars anterior commissurae anterioris cerebri. (05 Mar 2000) |
| acute anterior poliomyelitis | Inflammation of the anterior cornua of the spinal cord; an acute infectious disease caused by the poliomyelitis virus and marked by fever, pains, and gastroenteric disturbances, followed by a flaccid paralysis of one or more muscular groups, and later by atrophy. Synonym: acute atrophic paralysis, myogenic paralysis. (05 Mar 2000) |
| alpha cells of anterior lobe of hypophysis | Acidophil cell's that constitute about 35% of the cell's of the anterior lobe. There are two varieties: one that elaborates somatotropin, another that elaborates prolactin. (05 Mar 2000) |
| anterior | <anatomy> Toward the front or in front of. (27 Sep 1997) |
| anterior ampullar nerve | <anatomy, nerve> A branch of the utriculoampullar nerve that supplies the crista ampullaris of the anterior saemicircular duct. Synonym: nervus ampullaris anterior. (05 Mar 2000) |