Circulatory System 循环系统 周俊 Department of Histology & Embryology zhjjwm300@zju.edu.cn
实验内容 1.中动、静脉 (N0.19) 2.大动脉(NO.20) 3.小动、静脉和毛细血管(NO.18) 4.心室壁(N0.10) 目的要求:掌握心脏和各级血管的组织结构。 观察切片: 1.中动、静脉 (N0.19) 2.大动脉(NO.20) 3.小动、静脉和毛细血管(NO.18) 4.心室壁(N0.10)
中动脉 (Medium-sized artery) Tunica intimae Tunica media Tunica adventitia
Tunica intimae Tunica media Tunica adventitia Endothelium Subendothelial layer Internal elastic membrane Tunica media Tunica adventitia Medium-sized artery
动静脉结构比较 Artery Vein 1.形态: 腔小壁厚规则 腔大壁薄不规则 2.最厚: 中膜 外膜 3.内弹性膜: 明显 不明显 1.形态: 腔小壁厚规则 腔大壁薄不规则 2.最厚: 中膜 外膜 3.内弹性膜: 明显 不明显 4.静脉瓣: 无 有
Slide19-中动脉、中静脉 Medium-sized artery Medium-sized vein
Slide19-中动脉(Medium-sized artery)
中动脉 中静脉
示教:静脉瓣
Slide20-大动脉 示教:大动脉(弹性染色)
Elastic membranes of Large artery
大静脉
小动脉和微动脉 (small artery and arteriole) 肌性动脉,直径0.3-1.0mm 直径小于0.3mm 较大的内弹性膜明显 无内弹性膜 3-9层平滑肌 1-2层平滑肌 无外弹性膜 薄,无外弹性膜 调节器官和组织的血流量,调节外周阻力,而调节血压 小动脉 微动脉
Cap、动静脉吻合
小动、静脉和淋巴管
小动脉 (Small artery)
Small vein and lymphatic vessel
示教:淋巴管
示教:淋巴管
心室壁结构示意图: 心内膜endocardium 心肌膜 myocardium 心外膜 epicardium
心内膜 endocardium
Purkinje fiber Purkinje fiber
Intercalated disc
Purkinje fiber
实验报告(二选一): File name: name+ID+circulatory system (20180426) 1) Medium sized artery or small artery: Tunica intime(endothelium,subendothelial layer, Internal elastic membrane) Tunica media Tunica adventitia 2)Heart: Endocardium (Purkinje fiber) Myocardium (intercalated disc) Epicardium File name: name+ID+circulatory system (20180426)
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