| posterior elastic layer | A transparent homogeneous acellular layer between the substantia propria and the endothelial layer of the cornea; considered to be a highly developed basement membrane. Synonym: lamina limitans posterior corneae, membrana vitrea, Descemet's membrane, Duddell's membrane, entocornea, hyaloid membrane, lamina elastica posterior, limiting layers of cornea, membrana hyaloidea, posterior elastic layer, tunica vitrea, vitreous membrane. (05 Mar 2000) |
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| posterior intraoccipital joint | Cartilaginous union between the squamous and lateral parts of the occipital bone in the newborn. Synonym: synchondrosis intraoccipitalis posterior, Budin's obstetrical joint, posterior intraoccipital joint. (05 Mar 2000) |
| posterior layer of rectus abdominis sheath | The portion of the sheath of the rectus abdominis muscle that lies posterior to the muscle covering only its upper two-thirds; it is formed by contributions from the aponeuroses of the internal oblique and transversus abdominis muscles; its free inferior margin forms the arcuate line; it is deficient below this, the posterior aspect of the muscle being covered only by transversalis fascia and peritoneum. Synonym: lamina posterior vaginae musculi recti abdominis. (05 Mar 2000) |
| posterior limiting layer of cornea | A transparent homogeneous acellular layer between the substantia propria and the endothelial layer of the cornea; considered to be a highly developed basement membrane. Synonym: lamina limitans posterior corneae, membrana vitrea, Descemet's membrane, Duddell's membrane, entocornea, hyaloid membrane, lamina elastica posterior, limiting layers of cornea, membrana hyaloidea, posterior elastic layer, tunica vitrea, vitreous membrane. (05 Mar 2000) |
| Cruveilhier's joint | A pivot synovial joint between the dens of the axis and the ring formed by the anterior arch and the transverse ligament of the atlas. Synonym: articulatio atlantoaxialis mediana, Cruveilhier's joint, middle atlantoepistrophic joint. (05 Mar 2000) |
| cubital joint | A compound hinge synovial joint between the humerus and the bones of the forearm; it consists of the articulatio humeroradialis and the articulatio humeroulnaris. Synonym: articulatio cubiti, cubital joint. (05 Mar 2000) |
| cuboideonavicular joint | A fibrous joint between adjacent parts of the cuboid and navicular bones; occasionally a synovial cavity is found here as an extension of the cuneonavicular joint. (05 Mar 2000) |
| haemophilic joint | <orthopaedics> Chronic arthroplasty due to repeated haemarthrosis in a haemophiliac. (05 Mar 2000) |
| cuneocuboid joint | The synovial articulation between the lateral surface of the lateral cuneiform and the anterior two-thirds of the medial surface of the cuboid. (05 Mar 2000) |
| cuneonavicular joint | The synovial joint between the anterior surface of the navicular and the posterior surfaces of the three cuneiform bones. Synonym: articulatio cuneonavicularis, cuneonavicular articulation. (05 Mar 2000) |
| cutaneous layer of tympanic membrane | The thin layer of skin on the external surface of the tympanic membrane. Synonym: cutaneous layer of tympanic membrane. (05 Mar 2000) |
| half-value layer | <radiobiology> The thickness of a specified material (usually a specific absorber), which attenuates a beam of radiation so that the exposure rate or absorbed dose rate at a specified point is reduced by half. (20 Sep 2002) |
| pretracheal layer | The layer of fascia investing the infrahyoid muscles and contributing to the formation of the carotid sheath. Synonym: lamina pretrachealis, middle cervical fascia, Porter's fascia, pretracheal layer. (05 Mar 2000) |
| prevertebral layer | The part of the cervical fascia which covers the bodies of the cervical vertebrae and the muscles attaching to them and to the anterior parts of their transverse processes. Synonym: lamina prevertebralis, prevertebral layer. (05 Mar 2000) |
| prickle cell layer | The layer of polyhedral cells in the epidermis; shrinkage artifacts and adhesion of these cells at their desmosomal junctions gives a spiny or prickly appearance. Synonym: prickle cell layer, spinous layer. (05 Mar 2000) |