Ovarian failure: Ovarian failure causes elevated fsh and lh, ovarian falure is mostly due to genetic or immune causes - although we do not know or understand all the possible reasons. ... Read more Dr. Gerard Honore Dr. Honore
Organ pipes are generally made out of either metal or wood. Very rarely, glass, porcelain, plastic, paper, Papier-mÃ¢chÃ©, or even stone pipes may be seen. A historical organ in the Philippines has pipes made exclusively of bamboo. Metal pipes are usually made of lead; for increased rigidity it is alloyed with tin along with trace amounts of antimony and copper.
Oboes /ËoÊboÊ/ OH-boh are a family of double reed woodwind musical instruments. The most common oboe plays in the treble or soprano range. Oboes are usually made of wood, but there are also oboes made of synthetic materials.A soprano oboe measures roughly 65 cm (25 1â2 in) long, with metal keys, a conical bore and a flared bell. modern oboe with the full conservatoire (conservatory in the US) or Gillet key system has 45 pieces of keywork, with the possible additions of a third octave key and alternate (left little finger) F-or C-key. The keys are usually made of nickel silver, and are silver-or occasionally gold-plated.