basal

(redirected from Basal membrane)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to Basal membrane: basal lamina

basal

 [ba´sal]
pertaining to or situated near a base; in physiology, pertaining to the lowest possible level.
basal body temperature method a type of natural family planning; see contraception.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ba·sal

(bā'săl), [TA]
1. Situated nearer the base of a pyramidal organ in relation to a specific reference point; opposite of apical. Synonym(s): basalis [TA]
2. In dentistry, denoting the floor of a cavity in the grinding surface of a tooth.
3. Denoting a standard or reference state of a function, as a basis for comparison. More specifically, denoting the exact conditions for measurement of basal metabolic rate (q.v.); basal conditions do not always denote a minimum value, for example, metabolic rate in sleep is usually lower than the basal rate but is inconvenient for standard measurement.
Farlex Partner Medical Dictionary © Farlex 2012

basal

adjective Referring to a base, baseline or non plus minimum.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

ba·sal

(bā'săl) [TA]
1. Situated nearer the base of a pyramidal organ in relation to a specific reference point; opposite of apical.
2. dentistry Denoting the floor of a cavity in the grinding surface of a tooth.
3. Denoting a standard or reference state of a function, as a basis for comparison.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

basal

Pertaining to, situated at, or forming, an anatomical base of any kind.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

basal 

1. In anatomy, denoting a layer or cells farthest away from the surface. Example: the basal cells of the corneal epithelium nearest Bowman's layer. 2. In optics, denoting the surface opposite to the apex of a prism.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

ba·sal

(bā'săl) [TA]
1. [TA] In dentistry, denoting the floor of a cavity in the grinding surface of a tooth.
2. Situated nearer the base of a pyramidal organ in relation to a specific reference point.
Synonym(s): basalis [TA] .
3. Denoting a standard or reference state of a function, as a basis for comparison.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Atrophic antrum-gastritis in children was characterized not only by the alteration of mucosal cytoarchitecture (the reduced volume of foveae and glands), but also by the reduced number of functionally mature cell forms responsible for the production of extracellular matrix components and basal membranes, the absence of which in paraepithelial localization results in the change of specific properties of basal membranes and, subsequently, the reduction of environmental resistance of epithelium.
The network of basal membrane infoldings allows the uptake of macromolecules from the hemolymph into the epithelial cells.
The structure of basal membrane that was PAS positive stained around the tubule was observed to be normal (Figure 5b, c).
Contact between the basal membrane of the endothelial cells and flat, pristine PET surfaces is continuous and straight, whereas punctual contact sites are exclusively observed between the basal endothelial membrane and the peaks on the ripple surface, and cells do not adhere to ripple valleys.
Also, the urothelium is still present 28 days after implantation with a continued basal membrane. In a clinical context, ECM would not be in direct contact with urine, which would protect the tissue from fibrosis.
Peeling off respiratory epithelium, oedematus (separation of primary lamellae from basal membrane), ruptured lamellae (primary and secondary) with club shaped tips was noted at 50 (Fig.
The second (and third to some degree) spines of the first dorsal are elongated, there are 9 dorsal and 8 anal rays, the middle rays of the pectoral fin are branched, there is a single branch in the fifth pelvic fin ray, the basal membrane is 7-18% of the length of the fifth fin ray and there are 19-22 gill rakers on the outer margin of the first gill arch.
The first phase is during the first week, where the transplanted cells have a random distribution through the seminiferous tubules and a few of them colonize the basal membrane. During the second phase, germ cells divide in the basal membrane (mitosis) and form a cellular monolayer.
The epithelial lining of both normal and PIN glands was segmented in two strata: a basal compartment 7 [micro]m wide from basal membrane, and a columnar (luminal) layer from the limit of the basal compartment to glandular lumen.
Although tendinal cells did not markedly increased the apical surface, their formation also involves reorganization of the basal membrane and cytoplasm as the cells form tonofibrillae and muscle attachments (Freeman et al., 1995).
Sun effects by UVA occur mainly in the stratum corneum and basal membrane. Keratinocytes and fibroblasts in the cell generate a stress activator protein kinase in response to the sun.