From deep (innermost)to superficial (outermost),the layers of the organs of the alimentary canal are:
1)mucosa
2)muscularis externa
3)serosa (adventitia)
4)submucosa
A)1,4,3,2
B)3,2,4,1
C)1,2,4,3
D)1,4,2,3

Question

From deep (innermost)to superficial (outermost),the layers of the organs of the alimentary canal are: 
1)mucosa
2)muscularis externa
3)serosa (adventitia)
4)submucosa
A)1,4,3,2
B)3,2,4,1
C)1,2,4,3
D)1,4,2,3

Quizplus · Accepted Answer

The correct order from deep (innermost) to superficial (outermost) layers of the organs of the alimentary canal is: mucosa (innermost lining), submucosa, muscularis externa (muscle layer), and serosa or adventitia (outermost layer), which corresponds to option D (1,4,2,3).

From Deep (Innermost)to Superficial (Outermost),the Layers of the Organs of the Alimentary