Which of the following statement is incorrect with respect to histology of alimentary canal?

1. Serosa is the outermost layer made up of a thin mesothelium with some connective tissue

2. Muscularis layer is formed by smooth muscles usually arranged into an inner longitudinal layer and circular layer

3. Submucosal layer is formed of loose connective tissue

4. An oblique muscle layer may be present in stomach

Brush border columnar epithelium is the lining of

1. Stomach

2. Oesophagus

3. Proximal convoluted tubules

4. Small intestine

In which layer of stomach are the gastric glands located?

1. Serosa

2. Mucosa

3. Submucosa

4. Muscularis mucosa

Pyloric sphincter regulates the opening of

1. Pharynx into oesophagus

2. Oesophagus into stomach

3. Stomach into duodenum

4. lleum into large intestine

Thecodont, diphyodont and heterodont teeth are the characteristic of

1. Reptiles

2. Aves

3. Amphibians

4. Mammals

The wall of alimentary canal from oesophagus to rectum possesses _____ layers.

1. 2 layers

2. 3 layers

3. 4 layers

4. 5 layers

Which organ of the following is present in abdominal cavity, just below diaphragm.

1. Pharynx

2. Pancreas

3. Liver

4. Tongue

The common passage for food and air is

1. Oesophagus

2. Pharynx

3. Trachea

4. Glottis

Which of the following prevents the entry of food into the wind pipe?

1. Glottis

2. Pharynx

3. Epiglottis

4. Both (1) & (2)

Oral cavity leads into a short pharynx which serves as a common passage for

1. Food only

2. Air only

3. Food and air

4. Digestive juices