The wall of the heart is composed of ________ layers._
举一反三
- A wall dividing two cavities, such as the chambers of the heart, it is called: A: septum B: membrane C: Endosteum D: tunic
- In the following description of the heart wall structure, the WRONG option is A: The heart wall consists of endocardium, myocardium and epicardium. B: The surface of endocardium is covered by endothelium. C: Purkinje fibers are distributed in the subendocardial layer of the ventricle (心室). D: Myocardium consists mainly of smooth muscle fibers. E: Epicardium is serosa.
- The wall epidermis is composed of ( ). A: The white line of the hoof B: The paries corneus C: The external layer D: The middle layer E: The internal layer
- The power of the female heart remains undiminished between the ages of 18 and 70 probably because _________. A: women almost lose no contractile muscle cells in the walls of their hearts B: women's oestrogen has a protective effect on their heart C: the size of their heart chambers is different from men's D: the thickness of the female heart's muscular wall is different from men's
- What are the five layers in the Internet protocol stack? What are the principal responsibilities of each of these layers?