Category: S

Surgical removal of all or part of the sigmoid colon, usually to remove a malignant tumor.  

To a characteristic that is expressed differently in the two sexes. Describing characteristics that are expressed differently in the two sexes but are controlled by genes not on the sex chromosomes, e.g. baldness in men. The expression of a genetic character or trait in one sex only. Manifesting in or impacting only one gender.  

Chromatin found only in female cells; it usually occurs as a small object (Barr body) near the nucleus or as a drumstick shaped appendage to the nucleus of some white cells. The presence or absence of sex chromatin is the basis of sex determination before birth through examination of cells obtained by amniocentesis. A test…

Any of several small, round or oval bones lying within a tendon, such as me patella (kneecap). The patella is the largest sesamoid bone in the human body. A small ovoid bone embedded in a tendon that lies over a joint and does not articulate with another bone; for example, the patella. An oval nodule…

Reaction occurring 1 or 2 weeks after the injection of antiserum (donor serum containing desired antibodies) and caused by an antibody reaction to an antigen in the donor serum. Symptoms of fever, enlarged spleen, joint pain, and swollen lymph glands occur. An allergic reaction, usually to an injected drug. May cause fever, joint pains, rash,…

Anti-depressent that works by inhibition of the uptake of the neurotransmitter serotonin; common side effects include nausea, diarrhea, tremor, insomnia, somnolence, and dry mouth.  

Smooth, transparent membrane, containing fibrous connective tissue, that lines many large cavities of the body (e.g., the pleural cavity, peritoneal cavity, and pericardial cavity). Serous membranes usually consist of two layers: a visceral layer covering the organs and a parietal layer lining the cavity walls. Between the two layers is a small space filled with…

Duct through which semen passes, as the ejaculatory duct. Any of the ducts that convey sperm, specifically the ductus deferens and the ejaculatory duct.  

To a disease that tends to end or resolve without treatment. There exists a condition known as a self-limiting disease, which follows its natural progression without necessitating intervention from healthcare professionals.  

Sedative used in the treatment of insomnia and convulsions. Adverse effects include respiratory depression, paradoxical excitement, and allergic reactions. Chemical signal that triggers a biochemical response; formation is usually stimulated by a drug, neurotransmitter, or hormone binding a cell surface receptor. One of the most common is cyclic AMP, whose function as a second messenger…