In mammals, the teeth are.
I. only two sets, present throughout life.
II. embedded in the socket of the jaw bones.
III. different types.

These conditions are respectively referred as
1. diphyodont, heterodont and thecodont
2. diphyodont, thecodont and heterodont
3. the codont, diphyodont and heterodont
4. the codon, heterodont and diphyodont

Brunner's gland are characteristic feature of:-

(1) jejunum of small intestine

(2) ileum

(3) duodenum

(4) fundic region of stomach

The pH of stomach is 1.6, then which enzyme will digest protein ?

(1) Trypsin

(2) Pepsin

(3) Amylase

(4) Erypsin

Which of the following components of our food are taken in small quantities?

(1) Carbohydrate and proteins

(2) Proteins and minerals

(3) Proteins and lipids                           

(4) Minerals and vitamins

Frenulum is:

(1) Adenoid present on pharyngeal wall

(2) Tonsils located on lateral wall of soft palate

(3) Fold attaching tongue to the floor of oral cavity

(4) V-shaped sulcus for terminalis on tongue

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

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