| linea axillaris media | A vertical line intersecting a point midway between the anterior and posterior axillary folds or lines. Synonym: linea axillaris media, linea medio-axillaris, middle axillary line. (05 Mar 2000) |
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| linea axillaris posterior | A vertical line extending inferiorly from the posterior axillary fold. Synonym: linea axillaris posterior, linea postaxillaris, postaxillary line. (05 Mar 2000) |
| linea corneae senilis | An opaque, grayish ring at the periphery of the cornea just within the sclerocorneal junction, of frequent occurrence in the aged; it results from a deposit of fatty granules in, or hyaline degeneration of, the lamellae and cells of the cornea. Synonym: anterior embryotoxon, arcus adiposus, arcus juvenilis, arcus lipoides, arcus senilis, gerontoxon, linea corneae senilis, lipoidosis corneae. (05 Mar 2000) |
| linea epiphysialis | The line of junction of the epiphysis and diaphysis of a long bone where growth in length occurs. Synonym: linea epiphysialis, synchondrosis epiphyseos. (05 Mar 2000) |
| linea intercondylaris femoris | A faint transverse ridge separating the floor of the intercondylar fossa from the popliteal surface of the femur; it affords attachment to the posterior portion of the articular capsule of the knee. Synonym: linea intercondylaris femoris. (05 Mar 2000) |
| linea intermedia cristae iliacae | The line on the crest of the ilium between the outer and inner lips, for origin of internal oblique muscle. Synonym: linea intermedia cristae iliacae. (05 Mar 2000) |
| linea interspinalis | Line passing through both anterior superior iliac spines indicating the interspinal plane. Synonym: linea interspinalis. (05 Mar 2000) |
| linea intertrochanterica | 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 intertubercularis | Line passing through tubercles of both iliac crests, indicating the intertubercular plane. Synonym: linea intertubercularis. (05 Mar 2000) |
| linea mamillaris | A vertical line passing through the nipple on either side. Synonym: linea mamillaris, nipple line. (05 Mar 2000) |
| linea mediana anterior | The line of intersection of the midsagittal plane with the anterior surface of the body. Synonym: linea mediana anterior. (05 Mar 2000) |
| linea mediana posterior | The line of intersection of the midsagittal plane with the posterior surface of the body. Synonym: linea mediana posterior. (05 Mar 2000) |
| linea medio-axillaris | An alternate term for midaxillary line, midaxillary line. (05 Mar 2000) |
| linea medioclavicularis | A vertical line passing through the midpoint of the clavicle. Synonym: linea medioclavicularis. (05 Mar 2000) |
| linea musculi solei | A ridge which extends obliquely downward and medially across the back of the tibia from the fibular articular facet; it gives origin to the soleus muscle. Synonym: linea musculi solei, line for soleus muscle, linea poplitea, popliteal line. (05 Mar 2000) |