| IAP | immunosuppressive acidic protein; inosinic acid pyrophosphorylase; Institute of Animal Physiology; i... |
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| IBP | insulin-like growth factor binding protein; International Biological Program; intra-aortic balloon p... |
| LP | labile peptide; labile protein; laboratory procedure; lactic peroxidase; lamina propria; laryngophar... |
| LSP | left sacroposterior [fetal position]; linguistic string project; liver-specific protein; lymphocyte-... |
| MIP | macrophage inflammatory protein; major intrinsic protein; maximum inspiratory pressure; maximum inte... |
| infragranular layer | The cellular band deep to the inner granular layer of the developing human cerebral cortex, which differentiates into the ganglionic layer and multiform layer by the sixth foetal month. (05 Mar 2000) |
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| intermediate layer | The nuclear zone of the developing neural tube between the marginal layer and the ependymal layer; forms the gray matter of the central nervous system. Synonym: intermediate layer, mantle zone. (05 Mar 2000) |
| intermediate layer of the transversospinalis muscles | <anatomy, muscle> Origin, from the sacrum, sacroiliac ligament, mamillary processes of the lumbar vertebrae, transverse processes of thoracic vertebrae, and articular processes of last four cervical vertebrae; insertion, into the spinous processes of all the vertebrae up to and including the axis; action, rotates vertebral column; nerve supply, dorsal primary rami of spinal nerves. Synonym: musculus multifidus, intermediate layer of the transversospinalis muscles, musculus multifidus spinae. (05 Mar 2000) |
| internal nuclear layer of retina | The intermediate layer of neurons in the retina composed largely of bipolar cells. Synonym: internal nuclear layer of retina, stratum ganglionare retinae, stratum nucleare internum retinae. (05 Mar 2000) |
| investing layer of deep cervical fascia | The part of the cervical fascia investing the sternocleidomastoid and trapezius muscles and completely encircling the neck. Synonym: lamina superficialis fasciae cervicalis, investing fascia, superficial layer of deep cervical fascia. (05 Mar 2000) |
| odontoblastic layer | A layer of connective tissue cells at the periphery of the dental pulp of the tooth. (05 Mar 2000) |
| optic layer | A layer of white matter interspersed with nerve-cell bodies, immediately below the superficial gray layer of the superior colliculus, composed of myelinated fibres originating in the retina and striate cortex, the inner layer of the retina, consisting of the fibres originating from the cells of the ganglionic layer of optic nerve; in their further course these fibres combine to form the optic nerve or optic tract. Synonym: stratum opticum. (05 Mar 2000) |
| orbital layer of ethmoid bone | A thin plate of ethmoid bone forming part of the medial wall of the orbit and the lateral wall for the ethmoidal labyrinth. Synonym: lamina orbitalis ossis ethmoidalis, lamina papyracea, orbital lamina of ethmoid bone, orbital layer of ethmoid bone, orbital plate, paper plate, papyraceous plate. (05 Mar 2000) |
| osteogenetic layer | The inner bone-forming layer of the periosteum. (05 Mar 2000) |
| tenth-value layer | <radiobiology> Thickness of a specified substance which, when introduced into the path of a given beam of radiation, reduces the absorbed dose index or dose-equivalent index to one-tenth. The magnitude of the tenth-value layer may be different for absorbed dose index and dose equivalent index. (16 Dec 1997) |
| thin layer chromatography | <technique> Chromatography using a thin layer of powdered medium on an inert sheet to support the stationary phase. Faster than paper chromatography, gives higher resolution and requires smaller samples. (18 Nov 1997) |
| thin-layer chromatography | Chromatography through a thin layer of cellulose or similar inert material supported on a glass or plastic plate. (05 Mar 2000) |
| thin-layer electrophoresis | Electrophoretic migrations (separations) through a thin layer of inert material, such as cellulose, supported on a glass or plastic plate. (05 Mar 2000) |
| thin-layer immunoassay | A method for detection of antigen-antibody reactions, applicable to detection of either antigen or antibody, based on the fact that either reactant, when added to a polystyrene surface (such as a well in a polystyrene plate) is adsorbed as a thin layer and acts as an immunosorbent capable of binding with the second reactant. (05 Mar 2000) |
| e-layer | <radiobiology> Cylinder of relativistic electrons gyrating in a magnetic field, which produces a self-field strong enough to dominate the externally applied field and produce a field-reversal (where the B field changes sign) in the system. See: Field-Reversed Configuration, Field-Reversed Pinch. (09 Oct 1997) |