| bacterial outer membrane proteins | Proteins isolated from the outer membrane of bacteria. (12 Dec 1998) |
|---|---|
| rod outer segment | <ophthalmology, physiology> Major photoreceptor cell of vertebrate retina (about 125 million in a human eye). Columnar cells (about 40m long, 1m diameter) having three distinct regions: a region adjacent to and synapsed with, the neural layer of the retina contains the nucleus and other cytoplasmic organelles, below this is the inner segment, rich in mitochondria, that is connected through a thin neck (in which is located a ciliary body) to the outer segment. The outer segment largely consists of a stack of discs membrane infoldings that are incompletely separated in cones) that are continually replenished near the inner segment and that are shed from the distal end and phagocytosed by the pigmented epithelium. The membranes of the discs are rich in rhodopsin, the pigment that absorbs light. (03 Jul 1999) |
| rod outer segments | The portion of the retinal rod cell between the inner segment and the pigment epithelium layer of the retina. (12 Dec 1998) |
| hair cells, outer | Mechanoreceptors in the organ of corti. In mammals the outer hair cells are arranged in three rows which are further from the modiolus than the single row of inner hair cells. The motile properties of the outer hair cells may contribute actively to tuning the sensitivity and frequency selectivity of the cochlea. (12 Dec 1998) |
| outer cone fibre | Located between the inner segment and the cell body. (05 Mar 2000) |
| outer malleolus | The process at the lateral side of the lower end of the fibula, forming the projection of the lateral part of the ankle; the lateral malleolus is more inferiorly placed then the medial malleolus. Synonym: malleolus lateralis, external malleolus, extramalleolus, outer malleolus. (05 Mar 2000) |
| outer membrane | The larger of the two membranes of a double membrane. (05 Mar 2000) |
| outer table of skull | The outer compact layer of the cranial bones. Synonym: lamina externa cranii. (05 Mar 2000) |
| the outer | Ovarian extremity of the oviduct. (05 Mar 2000) |
| aortico-left ventricular tunnel | Congenital connection between the aorta above exit of coronary arteries and the left ventricle. (05 Mar 2000) |
| carpal tunnel | The passageway deep to the transverse carpal ligament between tubercles of the scaphoid and trapezoid bones on the radial side and the pisiform and hook of the hamate on the ulnar side, through which the median nerve and the flexor tendons of the fingers and thumb pass; compression of the median nerve may occur here (carpal tunnel syndrome). Synonym: canalis carpi, carpal canal. (05 Mar 2000) |
| carpal tunnel release | <orthopaedics, procedure> An orthopaedic surgical procedure which relieves the pressure exerted on the median nerve within the carpal tunnel in the wrist. This surgery may be performed conventionally via a small incision or using a fibreoptic scope (endoscopic carpal tunnel repair). (08 Jan 1998) |
| carpal tunnel syndrome | <syndrome> A condition where there is a disturbance of median nerve function in the wrist as the nerve passes through the carpal tunnel. A buildup of scar tissue (inside the carpal tunnel) can lead to this surgically correctable problem. Often treated with splinting and anti-inflammatory agents. (27 Sep 1997) |
| Corti's tunnel | The spiral canal in the organ of Corti, formed by the outer and inner pillar cells or rods of Corti; it is filled with fluid and occasionally crossed by nonmedullated nerve fibres. Synonym: Corti's canal. (05 Mar 2000) |
| tarsal tunnel syndrome | <syndrome> Compression of the posterior tibial nerve caused by thickening of the laciniate ligament or by gouty or arthritic deposits around the ankle joint leading to symptoms of pain or paresthesia over the sole of the foot. (12 Dec 1998) |