Category: Bk-Bl
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Blood
The familiar red fluid in the body that contains white and red blood cells, platelets, proteins, and other elements. The blood is transported throughout the body by the circulatory system. Blood functions in two directions: arterial and venous. Arterial blood is the means by which oxygen and nutrients are transported to tissues while venous blood is…
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Blockers, beta
A class of drugs that block beta-adrenergic substances such as adrenaline (epinephrine), a key agent in the “sympathetic” portion of the autonomic (involuntary) nervous system. By blocking the action of the sympathetic nervous system on the heart, beta blockers relieve stress on the heart. They slow the heart beat, lessen the force with which the heart muscle contracts and reduce blood vessel…
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Blocker, beta adrenergic
A class of drugs, also more simply called beta blockers, that block beta-adrenergic substances such as adrenaline (epinephrine), a key agent in the “sympathetic” portion of the autonomic (involuntary) nervous system. By blocking the action of the sympathetic nervous system on the heart, these agents relieve stress on the heart. They slow the heart beat, lessen the force with which…
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Block, caudal
Anesthesia produced by injection of a local anesthetic into the caudal canal, the sacral portion of the spinal canal. Caudal anesthesia is used to provide anesthesia and analgesia (pain relief) below the umbilicus. It may be the sole anesthetic or combined with general anesthesia. Also known as caudal epidural anesthesia or a caudal block.
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Blistering agent
A substance that causes tissue blistering. Also known as vesicatory.
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Blister, water
A blister with clear watery contents that is not purulent (does not contain pus) and is not sanguineous (does not contain blood). A blister is medically termed a vesicle. One that is more than 5 mm in diameter with thin walls and is full of watery fluid is called a bulla. The word “blister” entered…
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Blister, fever
A small sore situated on the face or in the mouth that causes pain, burning, or itching before bursting and crusting over. The favorite locations are on the lips, chin or cheeks and in the nostrils. Less frequent sites are the gums or roof of the mouth (the palate). Fever blisters are caused by herpes simplex virus. It lies latent (dormant)…
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Blister, blood
A blister full of blood due to a pinch, bruise or repeated friction. A blister is medically termed a vesicle. One that is more than 5 mm in diameter with thin walls and is full of watery fluid is called a bulla. The word “blister” entered English in the 14th century. It came from the…
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Blister beetle
A blister beetle is one of a number of beetles that have historically been used in dried or powdered form for medicinal purposes to raise blisters on the skin. An example of a blister beetle is the so-called Spanish fly. All blister beetles are soft-bodied beetles and belong to the family Meloidae.
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Blister agent
A substance that causes tissue blistering. Also known as vesicatory.