案例某日，在某单位喷水池内发现一具老年男性无名尸。该尸头东脚西俯卧于池内地面，双上肢屈曲于胸前，双下肢自然下伸，铁拐杖被压于左胸部及左上臂下。头留花白发，发育正常，营养中等。口鼻腔及外耳道未见明显异物。头皮无破损，皮下无出血，颅骨．未见骨折。打开颅腔，未 Case a day, in a unit fountain found an unknown dead man of the elderly. The cadaver head east west prone prone pool in the ground, both upper limb flexion in the chest, both lower extremities naturally under the iron crutches were pressed under the left chest and left arm. Head hair flowers white hair, normal development, nutrition and medium. Oral and nasal cavity and external auditory canal no obvious foreign body. No scalp damage, no bleeding under the skin, skull. No fracture. Open the cranial cavity, no