define apical membrane
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apical membrane apical membrane the layer of plasma membrane on the apical side (the side toward the lumen) of the epithelial cells in a body tube or cavity, separated from the basolateral membrane by the zonula occludens. Want to thank TFD for its existence?
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What is the Function of the Basement Membrane 19 Jul, 2012 what is 0. The Basement membrane is a layer of fiber that is located under epithelium or endothelium. The epithelium is the tissue that lines the surfaces and cavities of organs, whereas the endothelium lines the inside of blood vessels.
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Sporophyte A membrane that encloses the central vacuole in a plant cell, separating the cytosol from the vacuolar contents, called cell sap; also known as the vacuolar membrane.
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- Cell membrane. The cell membrane (also known as the plasma membrane or cytoplasmic membrane) is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells.
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Apical Meristem: Definition & Function Apical meristem is found at the apices, or tips of the plant, both the tip of the shoot and the root and is a region of actively dividing cells. The definition of is easy to remember when you break it down.
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tympanic membrane Descemet's membrane the posterior lining membrane of the cornea; it is a thin hyaline membrane between the substantia propria and the endothelial layer of the cornea. diphtheritic membrane the peculiar false membrane characteristic of diphtheria, formed by coagulation necrosis. drum membrane tympanic membrane.
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- Basolateral surface for the side attached to the underlying tissue and the sides attached to neighboring epithelial cells. 3. Attachment. The basal surface (part of the basolateral surface) is attached to the underlying tissue by a basal lamina (a.k.a. basement membrane). 4. Avascularity. Refers to the absence of blood vessels. Nutrients are obtained by diffusion or absorption across the apical and basal surfaces.
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cell membrane Switch to new thesaurus. cell membrane, cytomembrane, plasma membrane - a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell; all cells have a cell membrane.
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alveolar-capillary membrane the membrane that separates the fetal from the maternal blood in the placenta. plasma membrane. the membrane that encloses a cell; it is composed of phospholipids, glycolipids, cholesterol and proteins. The primary structure is a lipid bilayer.
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- Membrane: Membrane, in biology, the thin layer that forms the outer boundary of a living cell or of an internal cell compartment.
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- Plasma membrane.   The cell membrane also called the plasma membrane or plasmalemma is the biological membrane separating the interior of a cell from the outside environme … nt. 5 people found this useful.
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Cell membrane Cell membrane. A cell membrane, plasma membrane or plasmalemma is a selectively permeable lipid bilayer coated by proteins which comprises the outer layer of a cell. The plasma membrane works between the machinery on the inside of the cell and the outside fluid that bathes the cells. The plasma membrane lets nutrients into the cell such as glucose, amino acids, and lipids.
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membrane mucous membrane the membrane covered with epithelium that lines the tubular organs of the body. Nasmyth's membrane primary cuticle. nuclear membrane. 1. either of the membranes, inner and outer, comprising the nuclear envelope. 2. nuclear envelope.
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Membrane A membrane is a selective barrier; it allows some things to pass through but stops others. Such things may be molecules, ions, or other small particles. Biological membranes include cell membranes (outer coverings of cells or organelles that allow passage of certain constituents);[1] nuclear membranes, which cover a cell nucleus; and tissue membranes, such as mucosae and serosae.
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- Definition: The cell membrane is a thin semi-permeable membrane that surrounds the cytoplasm of a cell, enclosing its contents. Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell, while keeping other substances out.
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What is the Basement Membrane? The basement membrane (membrana basalis) is a thin layer of basal lamina and reticular lamina that anchors and supports the epithelium and endothelium.Epithelium is a type of tissue that forms glands and lines the inner and outer surfaces of organs and structures throughout the body.he reticular layer lies inside the basal lamina and is composed of fibrous tissue. Principally, the basement membrane serves to tie the epithelium to the connective tissue beneath it.
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basal lamina basal lamina (lamina basa´lis) the layer of the basement membrane lying next to the basal surface of the adjoining cell layer composed of an electron-dense lamina densa and an electron-lucent lamina lucida. lamina basila´ris the posterior wall of the cochlear duct, separating it from the scala tympani.
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pulse apical pulse. A pulse felt or heard over the part of the chest wall that lies over the apex of the heart. In healthy people this is roughly located at the left mid-clavicular line in the fourth intercostal space. pulse felt or heard over the part of the chest wall that lies over the apex of the heart. In healthy people this is roughly located at the left mid-clavicular line in the fourth intercostal space.
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Milk Synthesis Alveolar Epithelial Cells Here polar means that the function of the basal membrane (on the blood side) of epithelial cells having dramatically different functions compared with the apical membrane (membrane side of the cell exposed to the alveolar lumen).
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Amniotic Membrane Transplant Amniotic membrane is the innermost layer of the placenta consisting of a thick basement membrane and an avascular stromal matrix. It can been used as a graft and as a dressing to facilitate ocular surface reconstruction and to promote healing.
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- apical membrane, the layer of plasma membrane on the apical side (the side toward the lumen) of the epithelial cells in a body tube or cavity, separated from the basolateral membrane by the zonula occludens. 1  Facebook.
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Apical Pulse: Definition & Location The apical pulse is a measure of cardiac function that is completed by placing a stethoscope at the apex of the heart and counting for one minute. It represents the opening and closing of the valves in the heart. Lub dub are the two sounds heard that make up one heartbeat.his is the pulse that can be heard, using a stethoscope, at the apex of the heart. The apex is located at the bottom left of the organ. This measurement is the actual sounds of the valves in the heart opening and closing.
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Cell membrane Cell membrane. The cell membrane (also known as the plasma membrane or cytoplasmic membrane) is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
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- The cell membrane (also known as the plasma membrane or cytoplasmic membrane) is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells.
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What are the functions of the cell membrane? Plasma Membrane or Cell Membrane. Fluid, semipermeable, lipid bilayer that surrounds all cells; provides support and protection; serves as a barrier between the cell and environment; controls the movement of materials in and out of the cell; helps to maintain homeostasis (biological balance)
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Anatomy Chapter 4 Epithelial cells have several surfaces, an apical surface, a lateral surface, and a basal surface. The basal surface is the one supported on a basement membrane.