BARIUM ENEMA:
The use of a radiopaque barium suspension in a roentgenologic examination to image the colon, and define the anatomy of the large intestine and rectum.
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BASAL GANGLIA: A group of deeply seated interconnected neurons, including the caudate, the globus pallidus, and the putamen.
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BASILAR ARTERY:
The artery that originates from the junction of the two (L & R) vertebral arteries (VA) and runs along the dorsal clivus (base of the skull), anterior to the brainstem, before dividing in a terminal bifurcation into the two posterior cerebral arteries (PCA).
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BIFURCATION:
The point where a structure divides into two branches.
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BLADDER:
The musculomembraneous sac used for urine collection from the kidneys (via the ureters) and discharge through the urethra.
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BODY OF PANCREAS:
The mid portion of the pancreas. The pancreas has both endocrine ("internal") and exocrine ("external") glands, including the islets of Langerhans - cell clusters that produce insulin and the pancreatic acini that secrete pancreatic digestive juices.
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BODY OF STERNUM:
The portion of the sternum between the angle of Louis and the xiphoid process.
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BRACHIOCEPHALIC TRUNK (INNOMINATE):
The first branch of the arch of the aorta which further divides into the right common carotid and right subclavian arteries. ("innominate" - literally "nameless")
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BRACHIOCEPHALIC VEIN:
Two veins formed at the root of the neck from the union of the ipsilateral internal jugular vein (IJV) and the subclavian veins. The two brachiocepalic veins later combine to form the superior vena cava (SVC).
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BREAST:
A "modified sweat gland" in the superficial tissues of the anterior chest wall. Consists of a variable mixture of milk-producing glandular tissue, fat, and supporting connective tissue (Cooper's ligaments).
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BRONCHUS INTERMEDIUS:
The segment of right bronchus between the origin of the upper lobe bronchus (of the lung) and the bifurcation into the middle and lower lobes.
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Bug Report
Portions © 1997 J.G. Smirniotopoulos, M.D. and others.