A wall dividing two cavities, such as the chambers of the heart, it is called:
A: septum
B: membrane
C: Endosteum
D: tunic
A: septum
B: membrane
C: Endosteum
D: tunic
举一反三
- The Romans built two walls to keep the picts out of the area they had conquered. The two walls were called ______ and ______. A: the picts’ Wall, Celts’ Wall B: the Hadrian’s Wall, the Antonine Wall C: Britain’s Wall, Scotland’s Wall D: Roman Wall, Julius’ Wall
- 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
- Richard I was called ( ). A: the cat heart B: the girl heart C: the Lion Heart D: the man heart
- The method of dividing the medium into communication channel is called ______.
- The wall of the heart is composed of ________ layers._