First is fetal size, the critical factor is the size of the fetal head.
首先是胎儿大小，关键因素是胎头的大小。
| 单词 | Fetal Head |
| 释义 |
Fetal Head
原声例句
Osmosis-解剖与生理 First is fetal size, the critical factor is the size of the fetal head. 首先是胎儿大小，关键因素是胎头的大小。 Osmosis-神经 When sitting, the fetal head presses down on the sciatic nerve, on the area just before it exits the pelvis. 当孕妇坐下时，胎头正好在坐骨神经离开骨盆处压迫神经。
英语百科
Fetal headThe fetal head, from an obstetrical viewpoint, and in particular its size, is important because an essential feature of labor is the adaptation between the fetal head and the maternal bony pelvis. Only a comparatively small part of the head at term is represented by the face. The rest of the head is composed of the firm skull, which is made up of two frontal, two parietal, and two temporal bones, along with the upper portion of the occipital bone and the wings of the sphenoid. |
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