buccal cavity

Asked by mvicky.com | 20th Jun, 2009, 04:27: PM

Expert Answer:

The valve created by the cricopharyngeous muscle at the top of the oesophagus keeps air out of the digestive system during breathing.

Answered by  | 23rd Jun, 2009, 09:33: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.