The layer of the alimentary canal that is primarily responsible for a peristaltic contraction is the ...

0 votes
    muscularis externa.
    submucosa.
    serosa.
    mucosa.
asked May 19, 2013 in Biology by anonymous
    

1 Answer

0 votes
muscularis externa.
answered May 20, 2013 by Bioshare ~Top Expert~ (34,070 points)



...