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Encyclopedia > Aortic body

The aortic body is one of several small cluster of chemoreceptors, baroreceptors, and supporting cells located along the aortic arch. It measures changes in blood pressure and the composition of arterial blood flowing past it, including the partial pressures of oxygen and carbon dioxide but not pH. The chemoreceptors responsible for sensing changes in blood gasses are called glomus cells. A Chemosensor, also known as chemoreceptor, is a cell or group of cells that transduce a chemical signal into an action potential. ... Baroreceptors (or baroceptors) in the human body detect the pressure of blood flowing though them, and can send messages to the central nervous system to increase or decrease total peripheral resistance and cardiac output. ... AORTA can also mean always-on real-time access, referring to WAN computer networks. ... General Name, Symbol, Number Oxygen, O, 8 Chemical series nonmetals Group, Period, Block 16 (VIA), 2, p Density, Hardness 1. ... Carbon dioxide is an atmospheric gas composed of one carbon and two oxygen atoms. ... PH or ph or pH or Ph may be: In chemistry, pH is a measure of acidity. ...


It gives feedback to the medulla oblongata via the afferent branches of the vagus nerve (X). The medulla, in turn, regulates breathing and blood pressure. The medulla oblongata is the lower portion of the brainstem. ... The vagus nerve is tenth of twelve cranial nerves and the only nerve that starts in the brainstem (somewhere in the medulla oblongata) and extends way down past the head, all the way down to the abdomen. ...


Disorders

A paraganglioma is a tumor that may involve the aortic body.


See also


  Results from FactBites:
 
Dorlands Medical Dictionary (3375 words)
Auer bodies finely granular lamellar bodies having acid phosphatase activity; they are found in the cytoplasm of myeloblasts, myelocytes, monoblasts, granular histiocytes, and occasionally plasma cells, but never lymphoblasts or lymphocytes; their presence is virtually pathognomonic of leukemia.
Guarnieri's bodies inclusion bodies in the cells of the affected tissues in smallpox and vaccinia, regarded as caused by the reaction of the cell to the virus of the disease; called also Guarnieri's corpuscles.
a cytoplasmic body of varying appearance, structure, and function closely associated with the nucleus, kinetoplast, and basal body in certain parasitic flagellate protozoa; it is usually connected to the basal body by a fibril or thread, which together are known as the parabasal apparatus.
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