Birth in which the buttocks present before the head.
- Presentation, footling
There are single-footling or double-footling presentations depending upon whether the presenting part of the baby at delivery is just one foot or both feet.
- Presentation, vertex
In a vertex presentation, the top of the baby’s head comes first at delivery. The vertex here refers specifically to the top of the head The word “vertex” in Latin means a “whirlpool, whirlwind.” Why “top of the head”? Because the hairs on the top of the head often form a whorl, a whirl-like pattern.
depression, back pain, arthritis, heart disease, high blood pressure, and gastrointestinal disorders. An example of presenteeism might ibe an employee who suffers from depression and so is less able to work effectively. And another example might be the employee with a migraine headache who may have difficulty looking at a computer screen. In a sense, […]
Causing a rise in blood pressure. A pressor base is a substance (chemically classified as a base) capable of raising the blood pressure. A pressor nerve is a nerve that, when stimulated, increases the blood pressure. A pressor reflex is a nerve reflex that constricts arterioles (small blood vessels) and thereby increases the blood pressure. […]
- Pressor substance
A substance that elevates the arterial blood pressure. For example, prostacyclin (prostaglandin PGI2) is a potent pressor substance. In medicine, pressor refers to raising the blood pressure. The word comes from the French verb “presser” meaning “to exert pressure” or “to squeeze.”