| lesser supraclavicular fossa | A triangular space between the two heads of origin of the sternocleidomastoid muscle. Synonym: fossa supraclavicularis minor. (05 Mar 2000) |
|---|---|
| lesser trochanter | A pyramidal process projecting from the medial and proximal part of the shaft of the femur at the line of junction of the shaft and the neck; it receives the insertion of the psoas major and iliacus (iliopsoas) muscles. Synonym: trochanter minor, small trochanter, trochantin. (05 Mar 2000) |
| lesser tubercle of humerus | The anterior of the two tubercles of the neck of the humerus on which the subscapularis is inserted. Synonym: tuberculum minus humeri, lesser tuberosity of humerus. (05 Mar 2000) |
| lesser tuberosity of humerus | The anterior of the two tubercles of the neck of the humerus on which the subscapularis is inserted. Synonym: tuberculum minus humeri, lesser tuberosity of humerus. (05 Mar 2000) |
| lesser tympanic spine | The posterior edge of the tympanic notch (of Rivinus). Synonym: spina tympanica minor. (05 Mar 2000) |
| lesser wing of sphenoid bone | One of a bilateral pair of triangular, pointed plates extending laterally from the anterolateral body of the sphenoid bone. Forming the posteriormost portion of the floor of the anterior cranial fossa, their sharp posterior edge forms the sphenoidal ridge separating anterior and middle cranial fossae. The medial end of the lesser wing attaches to the body by means of two pedicles, thus forming the optic canal. The wing itself forms the superior margin of the supraorbital fissure. Synonym: ala minor ossis sphenoidalis, ala orbitalis, Ingrassia's apophysis, Ingrassia's wing. (05 Mar 2000) |
| lesser zygomatic muscle | <anatomy, muscle> Origin, zygomatic bone posterior to zygomaticomaxillary suture; insertion, orbicularis oris of upper lip; action, draws upper lip upward and outward; nerve supply, facial. Synonym: musculus zygomaticus minor, caput zygomaticum quadrati labii superioris, lesser zygomatic muscle. (05 Mar 2000) |
| accessory lacrimal glands | Small, compound, branched, tubular glands located in the middle part of the lid (Wolfring's glands, 1872, or Ciaccio's glands, 1874) and along the superior and inferior fornices of the conjunctival sac (Krause's glands, 1854). These accessory glands are just scattered scraps of lacrimal gland tissue; all of them produce the same kind of tears and debouch on to the conjunctival surface. Henle's and Baumgarten's "glands" are in fact not glands at all, but mere epithelial invaginations. Synonym: glandulae lacrimales accessoriae. (05 Mar 2000) |
| accessory suprarenal glands | Isolated, often minute, masses of suprarenal tissue sometimes found near the main glands or in the broad ligament or the epididymis. Synonym: glandulae suprarenales accessoriae. (05 Mar 2000) |
| aggregate glands | Lymphoid organs located in the sub mucosal tissue of the mammalian gut containing very high proportions of IgA secreting precursor cells. The patches have B and T dependent regions and germinal centres. A specialised epithelium lies between the patch and the intestine. Involved in gut associated immunity. (18 Nov 1997) |
| agminate glands | Lymphoid organs located in the sub mucosal tissue of the mammalian gut containing very high proportions of IgA secreting precursor cells. The patches have B and T dependent regions and germinal centres. A specialised epithelium lies between the patch and the intestine. Involved in gut associated immunity. (18 Nov 1997) |
| Albarran's glands | Minute submucosal glands or branching tubules in the subcervical region of the prostate gland, emptying for the most part into the posterior portion of the urethra. Synonym: Albarran y Dominguez' tubules. (05 Mar 2000) |
| apocrine glands | Large, branched, specialised sweat glands that empty into the upper portion of a hair follicle instead of directly onto the skin. (12 Dec 1998) |
| apocrine sweat glands | Sudoriferous glands that develop in association with hair follicles and undergo enlargement and secretory development at puberty; they secrete a viscous and odourless sweat that supports the growth of bacteria leading to an acrid odour; secretion is by an eccrine, not apocrine, mechanism. Synonym: axillary sweat glands. (05 Mar 2000) |
| areolar glands | A number of small mammary glands forming small rounded projections from the surface of the areola of the breast; they enlarge with pregnancy and during lactation secrete a substance presumed to resist chapping. Synonym: glandulae areolares, Montgomery's follicles, Montgomery's glands. (05 Mar 2000) |