Question

The part of alimentary canal that lies mainly in thorax and is associated with process deglutition, opens into​

Answer 1

Answer:

oesophagus(food pipe)

Answer 2

The part of alimentary canal that lies mainly in thorax and is associated with process deglutition is OESOPHAGUS. It opens into the STOMACH in the abdomen.

Detailed discussion:

• Whenever food is taken into the mouth the muscles of mastication are activated resulting into chewing of food into small pieces and formation of bolus.

• When bolus is formed the pharyngeal muscles stimulated resulting into swallowing and deglutition.

• From the pharynx (situated in throat), the food passes down into the oesophagus which in turn passes into the stomach.

___________________________

Few info about esophagus:

• Esophageal mucosa has Non-keratinised Stratified Squamous Epithelium.

• The gastro-esophageal junction has a lower esophageal sphincter, which prevents regurgitation.

$\star$ Hope It Helps.