Lectin
A complex molecule that contains both protein and sugar. Lectins are made by both animals and plants and are able to bind to the outside of a cell and cause biochemical changes in it.
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- Leech
Leech therapy. 2. (Archaic) A physician or surgeon (because they did so much leeching). 3. A person who behaves as a parasite.
- Leech therapy
The use of leeches in medical treatment. Once used as an almost universal cure, leeches were largely abandoned by medicine but in the second half of the 20th century refound a role. That role is largely in plastic and reconstructive surgery. Leeches can assist, for example, in the reattachment of severed body parts such as […]
- Left atrium
The upper right chamber of the heart. The left atrium receives oxygenated blood from the lungs and pumps it down into the left ventricle which delivers it to the body.
- Left heart
The left atrium and left ventricle.
- Left heart hypoplasia syndrome
A form of congenital heart disease in which the whole left half of the heart (including the aorta, aortic valve, left ventricle and mitral valve) is underdeveloped (hypoplastic). Blood returning from the lungs has to flow through an opening in the wall between the upper chambers of the heart (an atrial septal defect). The right […]