| HAT | Halsted Aphasia Test; head, arm, trunk; heparin-associated thrombocytopenia; heterophil antibody tit... |
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| LAC | La Crosse [virus]; lactase; left atrial circumflex [artery]; left atrial contraction; linguoaxiocerv... |
| LANC | long-arm navicular cast |
| LAR | laryngology; late asthmatic response; late reaction; left arm recumbent; leukocyte antigen-related |
| lar | larynx; left arm reclining |
| superficial perineal pouch | The superficial compartment of the perineum; the space bounded above by the perineal membrane (inferior fascia of the urogenital diaphragm) and below by the superficial perineal (Colles') fascia; it contains the root structure of the penis or clitoris and associated musculature, plus the superficial transverse perineal muscle and, in the female only, the greater vestibular glands. Synonym: spatium perinei superficiale, Colles' space, superficial perineal pouch. (05 Mar 2000) |
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| superficial perineal space | The superficial compartment of the perineum; the space bounded above by the perineal membrane (inferior fascia of the urogenital diaphragm) and below by the superficial perineal (Colles') fascia; it contains the root structure of the penis or clitoris and associated musculature, plus the superficial transverse perineal muscle and, in the female only, the greater vestibular glands. Synonym: spatium perinei superficiale, Colles' space, superficial perineal pouch. (05 Mar 2000) |
| superficial peroneal nerve | <anatomy, nerve> A branch of the common peroneal nerve which passes downward in the lateral compartment of the leg to supply the peroneus longus and brevis muscles and terminate as the intermediate and medial dorsal cutaneous nerves supplying the skin of the dorsum of the foot and toes (except for adjacent sides of great and second toes). Synonym: nervus fibularis superficialis, nervus peroneus superficialis, musculocutaneous nerve of leg, superficial fibular nerve. (05 Mar 2000) |
| superficial posterior sacrococcygeal ligament | <anatomy> The continuation of the supraspinal ligament from the sacrum to the coccyx. Synonym: ligamentum sacrococcygeum posterius superficiale, superficial posterior sacrococcygeal ligament. (05 Mar 2000) |
| superficial punctate keratitis | Epithelial punctate keratitis associated with viral conjunctivitis. Synonym: Thygeson's disease. (05 Mar 2000) |
| superficial pustular perifolliculitis | <dermatology> A superficial follicular pustular eruption involving the scalp or other hairy area. Synonym: Bockhart's impetigo, superficial pustular perifolliculitis. (05 Mar 2000) |
| superficial reflex | Any reflex, e.g., the abdominal or cremasteric reflex, which is elicited by stimulation of the skin. (05 Mar 2000) |
| superficial spreading melanoma | <tumour> Primary cutaneous melanoma characterised by intraepidermal growth extending laterally beyond the site of dermal invasion. (05 Mar 2000) |
| 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 branch of auriculotemporal nerve | Branches of auriculotemporal nerve to anterolateral scalp. Synonym: rami temporales superficiales nervi auriculotemporalis. (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) |