Labia stretching abuse The girls are subject to familial and social pressure to conform. The early recordings of the results of the practice are perhaps among the Khoisan peoples of southern Africa, where the inner labia were seen to be several centimeters longer than the outer labia. When Captain James Cook reached Cape Town in 1771, towards the end of his first voyage, he acknowledged being "very desirous to determine the great question among natural historians, whether the women of this country have or have not that fleshy flap or apron which has been called the "Sinus pudoris""; eventually a physician described
Sinus rhythm However, other sinus rhythms can be entirely normal in particular patient groups and clinical contexts, so the term is sometimes considered a misnomer and its use is sometimes discouraged. Other types of sinus rhythm which can be normal include sinus tachycardia, sinus bradycardia and sinus arrhythmia. Sinus rhythms may be present together with various other cardiac arrhythmias on the same ECG. For an ECG to be described as showing a sinus rhythm, the shape of the P wave in each of the 12 standard ECG leads should be consistent with a "typical P vector" of +50° to +80°. This means