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, caecum

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