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1.用解剖法观察了100具中国成年尸体(200侧)的手背和手掌的皮神经分布区域。 2.桡神经浅枝在手背各指侧的分布可分为六型和“其他”一项。其中Ⅰ型(分布于由拇指外侧缘到中指外侧缘的区域内)的出现率占51.5±3.53％为最高。 3.尺神经背侧枝在手背各指侧的分布可分为八型。其中Ⅰ型(分布于由小指内侧缘到中指内侧缘的区域内)的出现率占67.0±3.33％为最高。 4.前臂外侧皮神经分布于手背各指侧的出现率为23.5±3.0％;不分布于手背的占76.5±3.0％。 5.整个手背皮神经的分布,可按各有关神经分布区域的大小分为六型。其中以Ⅰ型(桡、尺神经各分布于2(1/2)指)的出现率占57.0±3.5％为最高。 6.手掌皮神经分布区域极为恒定。在98.5±0.85％的标本中,均为正中神经分布于桡侧3(1/2)指;尺神经分布于尺侧1(1/2)指。
1. Anatomical observation of 100 Chinese adult cadaver (200 sides) of the dorsal and palmar nerve distribution area. 2. Radial nerve branches in the back of each finger side of the distribution can be divided into six types and “other” one. Type Ⅰ (distributed in the outer edge of the thumb to the middle of the lateral margin of the region) occurred in 51.5 ± 3.53% rate was the highest. 3. ulnar nerve dorsal branches in the back of the finger on each side of the distribution can be divided into eight. Type Ⅰ (distributed in the inner edge of the little finger from the medial midline to the inner edge of the region) occurred in 67.0 ± 3.33% of the highest. 4. The appearance of the lateral forearm lateral cutaneous nerve in the back of each hand was 23.5 ± 3.0%; it was 76.5 ± 3.0% in the back of the hand. 5. The distribution of the entire dorsalis pedis nerve can be divided into six types according to the size of the relevant nerve distribution area. Among them, type I (radial, ulnar nerve distribution in the 2 (1/2) fingers) incidence of 57.0 ± 3.5% for the highest. The palmar nerve distribution area is extremely constant. In 98.5 ± 0.85% of the specimens, the median nerve was distributed on the radial side of the 3 (1/2) finger; ulnar nerve distribution in the ulnar 1 (1/2) finger.