| LFL | left frontolateral; leukocyte feeder layer; lower flammable limit |
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| NFL | nerve fiber layer; neurofilament protein, light polypeptide |
| NFLD | nerve fiber layer defect |
| OPL | other party liability; outer plexiform layer; ovine placental lactogen |
| PL | palmaris longus; pancreatic lipase; perception of light; peroneus longus; phospholipase; phospholipi... |
| muscular layer of mucosa | The thin layer of smooth muscle found in most parts of the digestive tube located outside the lamina propria mucosae and adjacent to the tela submucosa. Synonym: lamina muscularis mucosae, muscular layer of mucosa. (05 Mar 2000) |
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| corneal layer of epidermis | The outer layer of the epidermis, consisting of several layers of flat keratinised non-nucleated cells. Synonym: corneal layer of epidermis, horny layer of epidermis. (05 Mar 2000) |
| cornified layer of nail | The outer, horny layer of the nail. Synonym: cornified layer of nail, horny layer of nail. (05 Mar 2000) |
| cortical layer | Sub plasmalemmal layer of tangled microfilaments anchored to the plasma membrane by their barbed ends. This meshwork contributes to the mechanical properties of the cell surface and probably restricts the access of cytoplasmic vesicles to the plasma membrane. (18 Nov 1997) |
| polymorphous layer | Layer 6 of the cortex cerebri. Synonym: multiform layer, polymorphous layer, spindle-celled layer. (05 Mar 2000) |
| 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) |
| 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) |
| 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) |
| Henle's fibre layer | The layer of inner cone fibres in the central area of the retina. (05 Mar 2000) |
| Henle's layer | The outer layer cells of the inner root sheath of the hair follicle. (05 Mar 2000) |