The derivation of pleasure from one’s own pain. Masochism is considered a sexual disorder (paraphilia). Named after the 19th-century Austrian writer Leopold von Sacher-Masoch.
- MASS syndrome
A heritable disorder of connective tissue characterized by involvement of the mitral valve, aorta, skeleton, and skin. Hence, the acronym MASS (Mitral valve, Aorta, Skeleton, Skin). The MASS syndrome is due to a mutation in FBN1, the fibrillin 1 gene. The same gene as is mutated in Marfan syndrome.
The therapeutic practice of manipulating the muscles and limbs to ease tension and reduce pain. Massage can be a part of physical therapy or practiced on its own. It can be effective for reducing the symptoms of disorders of or pain in the muscles and nervous system, and it is often used to reduce stress.
- Massage therapist
A person who practices therapeutic massage. In many US states, massage therapists can be licensed after completing a specified training program. Licensed therapists may practice independently or in medical settings.
The muscle that raises the lower jaw.
- Mast cell
A granulocyte found in connective tissue whose normal function is unknown but that is frequently injured during allergic reactions. When a mast cell is injured, it releases strong chemicals, including histamine, into the tissues and blood. These chemicals are very irritating and cause itching, swelling, and fluid leaking from cells. They can also cause muscle […]