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Capillary — One of the tiny blood vessels that connect the arterioles (the smallest divisions of the arteries) and the venules (the smallest divisions of the veins). The capillaries form a fine network in many parts of the body. Although minute, the… … Medical dictionary
Capillary — Capillaries are the smallest of a body s blood vessels, measuring 5 10 μm in diameter, which connect arterioles and venules, and enable the interchange of water, oxygen, carbon dioxide, and many other nutrient and waste chemical substances… … Wikipedia
capillary — /kap euh ler ee/, adj., n., pl. capillaries. adj. 1. pertaining to or occurring in or as if in a tube of fine bore. 2. resembling a strand of hair; hairlike. 3. Physics. a. pertaining to capillarity. b. of or pertaining to the apparent attraction … Universalium
capillary — The smallest type of blood vessel. A capillary connects an arteriole (small artery) to a venule (small vein) to form a network of blood vessels in almost all parts of the body. The wall of a capillary is thin and leaky, and capillaries are… … English dictionary of cancer terms
capillary — n. an extremely narrow blood vessel, approximately 5–20 μm in diameter. Capillaries form networks in most tissues; they are supplied with blood by arterioles and drained by venules. The vessel wall is only one cell thick, which enables exchange… … The new mediacal dictionary
Gas exchange — or respiration takes place at a respiratory surface a boundary between the external environment and the interior of the body. For unicellular organisms the respiratory surface is Fick s law we can predict that respiratory surfaces must have: *a… … Wikipedia
Alveolar-capillary barrier — Infobox Anatomy Name = PAGENAME Latin = GraySubject = GrayPage = Caption = Gaseous exchange in the lung. Caption2 = Precursor = System = Artery = Vein = Nerve = Lymph = MeshName = Blood Air+Barrier MeshNumber = A04.411.715.025 DorlandsPre = m 08… … Wikipedia
alveolar-capillary membrane — alveolocapillary membrane a thin tissue barrier between pulmonary alveoli and adjacent capillaries, the site of gas exchange between alveolar air and capillary blood. Called also alveolar capillary or alveolocapillary barrier and blood air or… … Medical dictionary
Microcirculation — The microcirculation is a term used to describe the small vessels in the vasculature which are embedded within organs and are responsible for the distribution of blood within tissues; as opposed to larger vessels in the macrocirculation which… … Wikipedia
respiration, human — ▪ physiology Introduction the process by which oxygen is taken up and carbon dioxide discharged. The design of the respiratory system The human gas exchanging organ, the lung, is located in the thorax, where its delicate tissues are… … Universalium
circulation — circulable /serr kyeuh leuh beuhl/, adj. /serr kyeuh lay sheuhn/, n. 1. an act or instance of circulating, moving in a circle or circuit, or flowing. 2. the continuous movement of blood through the heart and blood vessels, which is maintained… … Universalium