B

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. image image

BASAL GANGLIA: A group of deeply seated interconnected neurons, including the caudate, the globus pallidus, and the putamen. image image
Caudate head - orange, putamen - blue.

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). image

BIFURCATION: The point where a structure divides into two branches (e.g. the abdominal aorta bifurcates into the common iliac aa. and the trachea bifurcates into the L and R mainstem bronchi)
image image image

BLADDER: The musculomembraneous sac used for urine collection from the kidneys (via the ureters) and discharge through the urethra. image

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 for the small intestine. image

BODY OF STERNUM: The portion of the sternum between the angle of Louis and the xiphoid process.image

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")image

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). image

BRAIN STEM: The portion of the brain that connects from the cerebral hemispheres to the cervical spinal cord. image image image image

BREAST: A "modified sebaceous 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). Several major medical groups recommend routine mammograms for early detection of breast cancer. There is continued discussion about the benefits of screening mammograms. image
Breast Lipoma
Breast Cancer

BRONCHUS INTERMEDIUS: On the right, the segment of bronchus between the origin of the upper lobe bronchus (of the lung) and the bifurcation into the middle and lower lobe bronchi.image


Bug Report
Portions © 1997, 2002 J.G. Smirniotopoulos, M.D. and others.