Category: L

Simple tubular glands in the mucous membrane of the intestine. In the small intestine they lie between the villi. They are lined with columnar epithelium in which various types of secretory cells are found. In the large intestine Lieberkuhn’s glands are longer and contain more mucussecreting cells.  

A tingling shock-like sensation passing down the arms or trunk when the neck is flexed. It is a nonspecific indication of disease in the cervical (neck) region of the spinal cord. The symptom (rather than a sign) of a pain resembling a sudden electric shock throughout the body produced by flexing the neck. It is…

A narcotic analgesic, similar to morphine, used to relieve severe pain. It is administered by mouth or injection and, may cause nausea, vomiting, loss of appetite, constipation, and confusion. Dependence may develop. A synthetic derivative of morphine. It is an effective analgesic but, like morphine, is a drug of addiction.  

The normal position of the heart, in which its apex is directed toward the left. A term describing the normal position of the heart when other viscera are inverted.  

A drug that counteracts the depression in breathing caused by narcotic analgesics such as morphine without affecting their pain-relieving effects. It is administered by injection, usually before or at the same time as the analgesic.  

A chemical, present in inflammatory exudates, that attracts white blood cells (leukocytes) and increases the permeability of blood capillaries. It is probably produced by injured cells.  

A bacterial exotoxin that selectively destroys white blood cells (leukocytes).  

The first stage in the first prophase of meiosis, in which the chromosomes become visible as single long threads. The initial stage of the prophase of cell division. The chromosomes become visible as separate entities but are not yet paired.  

A chemical prepared from lumps on the skin caused by lepromatous leprosy. An extract derived from Mycobacterium leprae, the organism that causes leprosy. It is injected under the skin, in a fashion similar to the injection of purified protein derivative (PPD), to determine the degree of a patient’s immune response to leprosy. PPD testing is…

An aggravation of lumps on the skin caused by leprosy, accompanied by fever and malaise.