Category: M

An atypical mycobacterium that causes systemic bacterial infection in patients with advanced immunosuppression (especially those with acquired immunodeficiency syndrome [AIDS]). It occasionally causes lung infections in patients with chronic obstructive lung disease.  

A gradual decrease and eventual cessation of muscle contractions when a muscle is stimulated repeatedly. A response where a muscle’s normal contraction, when electrified directly, weakens and becomes briefer with each subsequent stimulation, ultimately stopping as the muscle tires out.  

Organism associated with another organism to the mutual benefit of each.  

The removal, destruction, or injury of a conspicuous or essential body part or organ; maiming.  

To deprive of a limb or a part; to maim or disfigure.  

A protein produced by a genetically engineered mutation.  

A substitution of a single DNA nucleotide for another. This results in the transcription of a different amino acid than is normally found in the protein coded by the gene. Missense mutations are found in diseases such as sickle cell anemia. Red blood cell sickling is caused by the replacement of the amino acid glutamic…

A surgical procedure to repair transposition of the great vessels, in which a baffle is placed to shunt blood between the right and left atria, allowing more oxygenated blood to be circulated systemically.  

Repetitive jerking movements of the head and neck, in synchrony with ventricular contractions of the heart, seen in advanced aortic regurgitation or aortic aneurysm.  

An oily secretion obtained from a gland beneath the abdominal skin of male mammals. It has a strong odor and plays a part in animal communication. It is commercially used in manufacturing perfume.