| dorsal branch of the posterior intercostal veins 4-11 | Major tributary of the 4th through 11th posterior intercostal veins; area drained is the same as that supplied by the dorsal branch of posterior intercostal arteries. Synonym: ramus dorsalis venarum intercostalium posteriorum IV-XI. (05 Mar 2000) |
|---|---|
| dorsal branch of the superior intercostal artery | <anatomy, artery> Branches of the 1st and 2nd posterior intercostal arteries which arise as branches of the supreme intercostal artery. The distribution is the same as for the dorsal branches of the other posterior intercostal arteries at the T1-T2 vertebral level. Synonym: rami dorsales arteriae intercostalis supremae. (05 Mar 2000) |
| innermost intercostal muscle | <anatomy> A layer parallel to and essentially part of the internal intercostal muscle but separated from it by the intercostal vessels and nerves.internal intercostal muscle for attachment, action and nerve supply. Synonym: musculus intercostalis intimus. (05 Mar 2000) |
| intercostal | <anatomy> Situated between the ribs. Origin: L. Costa = rib (18 Nov 1997) |
| intercostal anaesthesia | Regional anaesthesia produced by injection of local anaesthetic solution about intercostal nerves. (05 Mar 2000) |
| intercostal arteries | Arteries which course in the thoracic wall between ribs. See: anterior intercostal arteries, posterior intercostal arteries 1-2, posterior intercostal arteries 3-11, superior intercostal artery. (05 Mar 2000) |
| intercostal ligaments | The membranous layers between ribs. Synonym: membranae intercostalia, intercostal ligaments, ligamenta intercostalia. (05 Mar 2000) |
| intercostal lymph nodes | One or two small nodes located posteriorly in each intercostal space; they receive lymph from the parietal pleura, intercostal space, and posterior body wall; the nodes in the upper spaces empty into the thoracic duct; the nodes in the lower spaces form a descending intercostal trunk that opens into the cisterna chyli. Synonym: nodi lymphatici intercostales. (05 Mar 2000) |
| intercostal membranes | The membranous layers between ribs. Synonym: membranae intercostalia, intercostal ligaments, ligamenta intercostalia. (05 Mar 2000) |
| intercostal muscle | <anatomy> Muscle tissue between two ribs. This muscle is a type called skeletal muscle. (12 Dec 1998) |
| intercostal muscles | Respiratory muscles that arise from the lower border of one rib and insert into the upper border of the adjoining rib, and contract during inspiration or respiration. (12 Dec 1998) |
| intercostal nerves | The ventral rami of the thoracic nerves from segments t1 through t11. The intercostal nerves supply motor and sensory innervation to the thorax and abdomen. The skin and muscles supplied by a given pair are called, respectively, a dermatome and a myotome. (12 Dec 1998) |
| intercostal space | An interval between the ribs, occupied by intercostal muscles, veins, arteries and nerves. Synonym: spatium intercostale. (05 Mar 2000) |
| intercostal veins | See: anterior intercostal veins, posterior intercostal veins, highest intercostal vein, left superior intercostal vein. (05 Mar 2000) |
| internal intercostal membrane | The membrane that replaces the internal intercostal muscle posteriorly, medial to the angles of the ribs. Synonym: membrana intercostalis interna. (05 Mar 2000) |