| superficial spreading melanoma | <tumour> Primary cutaneous melanoma characterised by intraepidermal growth extending laterally beyond the site of dermal invasion. (05 Mar 2000) |
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| superficial temporal artery | <anatomy, artery> Origin, a terminal branch of the external carotid (with maxillary artery); branches, transverse facial, middle temporal, orbital, parotid, anterior auricular, frontal, and parietal. Synonym: arteria temporalis superficialis. (05 Mar 2000) |
| superficial temporal plexus | An autonomic plexus of nerves on the artery of this name, derived from the external carotid plexus. Synonym: plexus temporalis superficialis. (05 Mar 2000) |
| superficial temporal veins | Veins that pass from the temporal region to join the maxillary vein to form the retromandibular vein. Synonym: venae temporales superficiales. (05 Mar 2000) |
| superficial transverse metacarpal ligament | <anatomy> A thickening of the deep fascia in the most distal part of the (base) of the triangular palmar aponeurosis. Synonym: ligamentum metacarpale transversum superficiale, Gerdy's fibres, ligamentum natatorium. (05 Mar 2000) |
| superficial transverse metatarsal ligament | <anatomy> A thickening of the distal part (base) of the plantar aponeurosis, at the level of the heads of the metatarsal bones. Synonym: ligamentum metatarsale transversum superficiale. (05 Mar 2000) |
| superficial transverse muscle of perineum | <anatomy> An inconstant muscle; origin, ramus of ischium; insertion, central tendon of perineum; action, draws back and fixes the central tendon of the perineum; nerve supply, pudendal (perineal). Synonym: musculus transversus perinei superficialis, superficial transverse muscle of perineum, Theile's muscle. (05 Mar 2000) |
| superficial transverse perineal muscle | <anatomy> An inconstant muscle; origin, ramus of ischium; insertion, central tendon of perineum; action, draws back and fixes the central tendon of the perineum; nerve supply, pudendal (perineal). Synonym: musculus transversus perinei superficialis, superficial transverse muscle of perineum, Theile's muscle. (05 Mar 2000) |
| superficial vein | <anatomy, vein> One of a number of veins that course in the subcutaneous tissue and empty into deep veins; they form prominent systems of vessels in the limbs and are usually not accompanied by arteries. Synonym: vena cutanea, cutaneous vein. (05 Mar 2000) |
| superficial volar artery | <anatomy, artery> The superficial palmar branch of the radial artery which supplies the thenar muscles then enters the palm to communicate with the superficial palmar arch from the ulnar artery. Synonym: ramus palmaris superficialis arteriae radialis, superficial palmar artery, superficial volar artery, superficialis volae. (05 Mar 2000) |
| fatty layer of superficial fascia | The more superficial, fatty part of the superficial fascia of the lower anterior abdominal wall. Synonym: fatty layer of superficial fascia. (05 Mar 2000) |
| lateral crus of the superficial inguinal ring | Portion of the external oblique aponeurosis which passes lateral to the superficial inguinal ring blending into the inguinal ligament and forming the lateral boundary of the ring. Synonym: crus laterale anuli inguinalis superficialis. (05 Mar 2000) |
| lateral superficial cervical lymph nodes | One to four nodes lying along the external jugular vein; they drain the skin and superficial structures over the region of the sternocleidomastoid muscle and send efferent vessels to the deep lateral cervical lymph nodes. Synonym: nodi lymphatici cervicales laterales superficiales. (05 Mar 2000) |
| frontal branch of superficial temporal artery | <anatomy, artery> Terminal branch of superficial temporal artery (with parietal branch) supplying anterolateral scalp and underlying musculature, periosteum, and outer table of cranium; anastomosis: across midline with contralateral partner; supratrochlear and supraorbital arteries. Synonym: ramus frontalis arteriae temporalis superficialis. (05 Mar 2000) |
| abducens nerve | <anatomy, nerve> The 6th cranial nerve. The abducens nerve originates in the abducens nucleus of the pons and sends motor fibres to the lateral rectus muscles of the eye. Damage to the nerve or its nucleus disrupts horizontal eye movement control. (12 Dec 1998) |