The hard chewing surface of teeth helping in mastication of food is called:

(1) Dentine

(2) Frenulum

(3) Root

(4) Enamel

The oesophagus and trachea (wind pipe) open into:

(1) Gullet

(2) Glottis

(3) Larynx

(4) Pharynx

Our stomach is:

(1) U-shaped

(2) J-shaped

(3) C-shaped

(4) Rod-shaped

A muscular sphincter regulating opening of oesophagus into the stomach is called:

(1) Pyloric sphincter

(2) Cardiac Sphincter

(3) Sphincter of oddi

(4) Boyden sphincter

The narrow distal part of stomach leading to the intestine is called:

(1) Cardiac

(2) Pyloric

(3) Fundus

(4) None of these

Small intestine is distinguishable into 3 parts, a 'C' shaped ________ a long coiled middle portion _________ and a highly coiled:

(1) Ileum, jejunum, duodenum

(2) Duodenum, Jejunum, ilium

(3) Duodenum, jejunum, ileum

(4) Caecum, duodenum, ileum

The opening of stomach into duodenum is guarded by:

(1) Cardiac sphincter

(2) Sphincter of Boyden

(3) Sphincter of Oddi

(4) Pyloric sphincter

Caecum is small blind sac which hosts some symbiotic micro-organisms. From it a small finger like vestigial organ arises. This organ is called:

(1) Parotid gland

(2) Vermis

(3) Vermiform appendix

(4) Lacteals

The wall of alimentary canal from oesophagus to rectum posses four layers. The sequence of these layers is:

(1) Serosa → Mucosa → Submucosa → Muscularis

(2) Muscularis → Serosa → Mucosa → Submucosa

(3) Serosa → Muscularis → Mucosa → Submucosa

(4) Serosa → Muscularis → Submucosa → Mucosa

Duodenal glands / Brunner's glands are present in:

(1) Submucosa

(2) Mucosa

(3) Muscularis

(4) Serosa