Category: A

Chemical compounds with a structure of an open chain of carbon atoms.  

A radiologic examination that usually includes an erect kidney, ureter, and bladder (KUB) projection, a recumbent KUB projection, and a left lateral decubitus image of the chest. It is used to assess patients with abdominal pain for free air (organ perforation), infection, intestinal obstruction, or stones.  

The septum that separates the right and left atria of the heart from the respective ventricles.  

Surgical puncturing of the membrane between twins affected by the twin oligohydramnios-polyhydramnios sequence.  

A sprain to the acromioclavicular and coracoclavicular ligaments, commonly caused by a fall or a blow directly to the shoulder (shoulder separation).  

A syndrome characterized by the spontaneous appearance of painful ecchymoses, usually at the site of a bruise. The areas itch and bum. The condition is commonly associated with headache, nausea, vomiting, and occasionally with intracranial, genitourinary, and gastrointestinal bleeding. With few exceptions, the disorder affects women of middle age. The cause is assumed to be…

Sensitization produced by injecting an antigen into a susceptible person.  

A laboratory method of determining the susceptibility of bacteria to antibiotics. The specimen obtained is cultured in various liquid dilutions or on solid media containing various concentrations of antimicrobial drugs in disks placed on the surface of the media. The disk-type test is not completely reliable. Also called culture and sensitivity test.  

A process by which humans select desirable characteristics in animals and breed them for these phenotypes. Choosing plants or animals for breeding based on specific, desirable traits that can be inherited. For example, chickens might be selected to create a crossbreed that not only lays a large number of eggs but also produces quality meat.…

A secretion in which the apical end of a secreting cell is broken off and its contents extruded, as in the mammary gland.