头部 head ❖ 颅 部 • 颅顶 ➢额顶枕区 frontoparietooccipital region ➢颞区 temporal region • 颅底与颅腔及其内容物 ❖ 面 部 ➢面浅部 superficial part of the face ➢腮腺咬肌区 Parotid and masseteric region ➢面深部 deep part of the face

• 体表投影 The surface projection • 舌骨下区 The infrahyoid region ➢颈动脉三角 The carotid triangle ➢肌三角 The muscular triangle • 胸锁乳突肌区 The sternocleidomastoid region

颈 部 Neck • 概述 introduction • 浅层结构 superifical structures • 下颌下三角 submandibular triangle • 颏下三角 submental triangle

Medical genetics What is a population from a genetic perspective? A population in the genetic sense, is not just a group of individuals, but a breeding group

一、前言 二、群体的遗传平衡 三、影响遗传平衡的因素 四、遗传负荷 五、群体中的平衡多态现象

Medical genetics Mitochondria are extremely small (from.002-008 millimeters in length) rice-shaped structures whose details can only be seen with the electron microscope

一、前言 二、人类线粒体基因组 三、线粒体基因的突变 四、线粒体疾病的遗传

Medical genetics Multifactorial inheritance is of individuals that will need speclar responsible for the greatest numbe care or hospitalization because of genetic diseases

一、前言 二、先天性代谢缺陷的共同规律 三、糖代谢疾病 四、氨基酸代谢疾病 五、核酸代谢疾病

Medical genetics Any type of change in the chromosome structure or number (deficiencies, duplications, translocations, inversions, etc.)