Questions on bladder

Shape of empty bladder👉 tetrahedral,
Shape of distended bladder👉 ovoid,
Average capacity of bladder👉 120-320 ml,
Mean capacity of bladder👉 220ml,
Sense of filling of bladder first starts at👉 100-150ml,
First desire of micturition👉 150-200ml,
Painful sensations starts wen amount reached above👉 450ml,
Micturition beyond voluntary control wen collection reaches about👉 800ml,
Most fixed part of bladder👉 neck,
Superior surface of Bladder is 👉 covered with peritoneum,
Inferolateral surfaces are👉 devoid of peritoneum..