Syncephaly
Conjoined twins whose heads are joined together. From syn-, together + -cephaly, head = heads together. Also called craniopagus or janiceps.
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- Synchronic study
A study that is done at a single point in time rather than over the course of a period of time (longitudinally).
- Syncope
Abnormal heart rhythms (heart beating too fast or too slow). Abnormalities of the heart valves (aortic stenosis or pulmonic valve stenosis). High blood pressure in the arteries supplying the lungs (pulmonary artery hypertension). Tears in the aorta (aortic dissection). Widespread disease of the heart muscle (cardiomyopathy). To be sure, many of the causes of temporary […]
- Syncope, heat
Sudden dizziness or fainting experienced after exercising in the heat. The skin appears pale and sweaty but is generally moist and cool. The pulse may be weakened, and the heart rate is usually rapid. Body temperature is normal.
- Syncope, micturition
The temporary loss of consciousness upon urinating. (Syncope is the temporary loss of consciousness or, in plain English, fainting). The situations that trigger this reaction are diverse and include having blood drawn, straining while urinating (micturition syncope) or defecating or coughing or swallowing). The reaction also can be due to the emotional stress of fear […]
- Syncope, situational
The temporary loss of consciousness in a particular kind of situation. The situations that trigger this reaction are diverse, and include having blood drawn, straining while urinating or defecating, and coughing. It can also be due to the emotional stress, fear, or pain. When experiencing the trigger condition, the person often becomes pale and feels […]