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Cavity in Biological Definition

Bone

... , and has a hollow middle - the medullar cavity - filled with bone marrow. Surrounding the medullar cavity is a thin layer of cancellous bone that also ... Meatus a short Canal Sinus a cavity within a cranial bone Parts of long bones ...

Lung

... below, a muscle that by contracting expands the cavity in which the lung is enclosed. The rib cage ... The lungs are located inside the thoracic cavity , protected by the bony structure of the rib ... are separated by a thin space called the pleural cavity that is filled with pleural fluid ; this allows ...

Dialysis

... dialysis , a special solution is run through a tube into the peritoneal cavity , the abdominal body cavity around the intestine . The fluid is left there for a while to absorb ...

Kidney

... which means they lie behind the peritoneum , the lining of the abdominal cavity . They are approximately at the vertebral level T12 to L3, and the right ... vessels and urinary tubes and a fibrous material. renal sinus : The cavity which houses the renal pyramids. calyces : The recesses in the ...

Animal

... well-developed, and tissues form distinct organs. The digestive chamber has two openings, a mouth and an anus, and there is also an internal body cavity called a coelom or pseudocoelom. There are exceptions to each of these characteristics, however - for instance adult echinoderms are radially ...

Blastula

... The blastula follows the morula and precedes the gastrula in the development sequence. A blastula has around 128 cells, with a large central cavity called the blastocoel . Also called blastosphere . ...

Cartilage

... surrounding the chondrocytes is referred to as the territorial matrix and stains darker than the interstitial matrix . Chondrocytes lie in a cavity called a lacuna . During slide preparations, chondrocytes often shrink and appear smaller than the lacunae but in live tissue, they occupy the ...

Human

... the ape lineage suggests an earlier divergence. Human evolution is characterized by a number of important trends : expansion of the brain cavity and brain itself, which is typically 1,400 cm³ in volume, over twice that of a chimpanzee or gorilla, although physical anthropologists ...

Animal

... well-developed, and tissues form distinct organs. The digestive chamber has two openings, a mouth and an anus, and there is also an internal body cavity called a coelom or pseudocoelom. There are exceptions to each of these characteristics, however - for instance adult echinoderms are radially ...

Monoclonal antibody

... out. Monoclonal antibodies can be produced in cell culture or in animals. When the hybridoma cells are injected in mice (in the peritoneal cavity , the gut), they produce tumors containing an antibody-rich fluid called ascites fluid. In the above process, myeloma cell lines are used that ...

Nephron

... of four sections: the proximal tubule , loop of Henle , distal tubule , and collecting duct . The collecting ducts empty into the central cavity of the kidney, the renal pelvis , which connects to the ureter . Each human kidney has about a million nephrons. The basic function of the ...

Vacuole

... maintaining fluid balance (called turgor ) within the cell, exporting unwanted substances from the cell, or even determining relative cell size. The cavity that is the vacuole is considered nonprotoplasmic and the contents classified as ergastic according to some authors (Esau, 1965). Vacuoles are ...
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