| transverse muscle of abdomen | <anatomy, muscle> Origin, seventh to twelfth costal cartilages, lumbar fascia, iliac crest, and inguinal ligament; insertion, xiphoid cartilage and linea alba and, through the conjoint tendon, pubic tubercle and pecten; action, compresses abdominal contents; nerve supply, lower thoracic. Synonym: musculus transversus abdominis, musculus transversalis abdominis, transverse muscle of abdomen. (05 Mar 2000) |
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| transverse muscle of auricle | <anatomy> A band of sparse muscular fibres on the cranial surface of the auricle, extending from the eminence of the concha to the eminence of the scapha. Synonym: musculus transversus auriculae, transverse muscle of auricle. (05 Mar 2000) |
| transverse muscle of chin | <anatomy> Inconstant fibres of the depressor anguli oris musculus continue into the neck and cross to the opposite side inferior to the chin. Synonym: musculus transversus menti, transverse muscle of chin. (05 Mar 2000) |
| transverse muscle of nape | <anatomy> An occasional muscle passing between the tendons of the trapezius and sternocleidomastoid, possibly a fasciculus of the posterior auricular muscle. Synonym: musculus transversus nuchae, transverse muscle of nape. (05 Mar 2000) |
| transverse muscle of thorax | <anatomy, muscle> Origin, dorsal surface of xiphoid cartilage and lower portion of dorsal surface of body of sternum; insertion, second to sixth costal cartilages; action, contributes to depression of ribs, narrowing chest; nerve supply, intercostal. Synonym: musculus transversus thoracis, musculus triangularis sterni, sternocostalis muscle, transverse muscle of thorax. (05 Mar 2000) |
| transverse muscle of tongue | An intrinsic muscle of the tongue, the fibres of which arise from the septum and radiate to the dorsum and sides; action, decreases lateral dimension of the tongue; nerve supply, hypoglossal for motor, lingual for sensory. Synonym: musculus transversus linguae. (05 Mar 2000) |
| transverse part of nasalis muscle | <anatomy> See: nasalis muscle. Synonym: pars transversa musculi nasalis. (05 Mar 2000) |
| perineal | <anatomy> Pertaining to the perineum. (18 Nov 1997) |
| perineal artery | <anatomy, artery> Origin, internal pudendal; distribution, superficial structures of the perineum; anastomoses, external pudendal arteries. Synonym: arteria perinealis. (05 Mar 2000) |
| perineal body | central tendon of perineum |
| perineal branches of posterior femoral cutaneous nerve | <anatomy, nerve> Branches of posterior femoral cutaneous nerve which convey sensory fibres to the skin of the lateral-most perineum and adjacent portions of the upper medial thigh. Synonym: rami perineales nervi cutanei femoris posterioris. (05 Mar 2000) |
| perineal flexure of rectum | The anteroposterior curve with convexity anteriorward of the last portion of the rectum. Synonym: flexura perinealis recti, anorectal angle, anorectal flexure. (05 Mar 2000) |
| perineal hernia | A hernia protruding through the pelvic diaphragm. Synonym: levator hernia, pudendal hernia. (05 Mar 2000) |
| perineal hypospadias | Hypospadias in which the urethral defect continues along the perineum to near the anus; the scrotum is usually cleft, the testes undescended, and the penis rudimentary. (05 Mar 2000) |
| perineal lithotomy | Lithotomy in which the bladder is approached by an incision in the perineum. (05 Mar 2000) |