| linea scapularis | A vertical line passing through the inferior angle of the scapula. Synonym: linea scapularis. (05 Mar 2000) |
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| linea semilunaris | The slight groove in the external abdominal wall parallel to the lateral edge of the rectus sheath. Synonym: semilunar line, Spigelius' line. (05 Mar 2000) |
| linea spiralis | A rough line that separates the neck and shaft of the femur anteriorly; it passes downward and medially from the greater trochanter to the lesser trochanter and continues into the medial lip of the linea aspera. Synonym: linea intertrochanterica, linea spiralis, spiral line. (05 Mar 2000) |
| linea splendens | A thickened band of pia mater along the midline of the anterior surface of the spinal cord. Synonym: Haller's line. (05 Mar 2000) |
| linea sternalis | A vertical line corresponding to the lateral margin of the sternum. Synonym: linea sternalis. (05 Mar 2000) |
| linea subcostalis | A transverse line transecting the inferiormost border of the thoracic cage, indicating the subcostal plane. See: subcostal plane. Synonym: linea subcostalis. (05 Mar 2000) |
| linea supracristalis | A transverse line transecting the high point of both iliac crests, indicating the supracristal plane. See: supracristal plane. Synonym: linea supracristalis. (05 Mar 2000) |
| linea terminalis | An oblique ridge on the inner surface of the ilium and continued on the pubis, which forms the lower boundary of the iliac fossa; it separates the true from the false pelvis. Synonym: iliopectineal line, terminal line. (05 Mar 2000) |
| linea trapezoidea | The area on the inferior surface of the clavicle near its lateral extremity on which the trapezoid ligament attaches. Synonym: linea trapezoidea, trapezoid ridge. (05 Mar 2000) |
| ala temporalis | Strong squamous processes extending in a broad superolateral curve from the body of the sphenoid bone. The greater wing presents these suraces (facies): 1) cerebral surface: forms anterior third of the floor of the lateral portions of the middle cranial fossa; 2) temporal surface: forms the deepest portion of the temporal fossa; 3) infratemporal surface, forms the "roof" of the infratemporal fossa; 4) orbital surface: forms posterolateral wall of orbit. The greater wing forms the inferior border of the supraorbital fissure, and is perforated at its root by foramina rotundum ovale, and spinosum and the pterygoid canal. Synonym: ala major ossis sphenoidalis, ala temporalis. (05 Mar 2000) |
| angulus oculi temporalis | The angle formed by the junction of the lateral parts of the upper and lower eyelids. Synonym: angulus oculi lateralis, angulus oculi temporalis, external canthus, lateral canthus. (05 Mar 2000) |
| apex partis petrosae ossis temporalis | The irregular antero-medial extremity of the petrous part on which the anterior end of the carotid canal opens. Synonym: apex partis petrosae ossis temporalis. (05 Mar 2000) |
| arteria temporalis anterior | <anatomy, artery> A branch of the insular part of the middle cerebral artery distributed to the cortex of the anterior part of the temporal lobe. Synonym: arteria temporalis anterior. (05 Mar 2000) |
| arteria temporalis intermedia | <anatomy, artery> A branch of the insular part of the middle cerebral artery supplying the cortex of the temporal lobe between the anterior and posterior temporal arteries. Synonym: arteria temporalis intermedia. (05 Mar 2000) |
| arteria temporalis media | <anatomy, artery> Origin, superficial temporal; distribution, temporal fascia and muscle; anastomoses, branches of maxillary. See: intermediate temporal artery, posterior temporal artery. Synonym: arteria temporalis media. (05 Mar 2000) |