动物造模 z-bio 2022-05-31 573

　　Objective: Through the anatomical study of the tail blood vessels of experimental rats, to further clarify the course and distribution of the arteries and veins, to deepen the understanding of their physiological functions, and to provide an anatomical basis for the standardization of animal experimental techniques and the design of experimental animal models.

　　METHODS: Adult SD rats were selected, red and blue pigments were used to perfuse the tail blood vessels after perfusion, and then the tail blood vessels were dissected, the abdominal aorta was perfused with formaldehyde under physiological pressure, and the tail tissue sections were fixed by formaldehyde. Arterial microangiography.

　　Results: The three sets of longitudinal arteriovenous systems in the superficial layer of the rat tail were confirmed, the dorsal arteriovenous chain structure was clarified, and the gap of deep vascular distribution was filled. The double-layered cage-like communication structure of the caudal vessels?

　　Conclusion: This study accurately revealed the rich vascular structure in the tail of the rat, revealed the existence of the deep vascular system in the tail of the rat, and proposed the concept of double-frame vascular structure. Ischemic compensatory response, etc. lay a good foundation?