Digestion

Question 1

spinchter muscle opening and closing of mouth

Answer 1

Orbicularis oris

Question 2

Shalu depression above upper lip

Answer 2

Philtrum

Question 3

Space between lip and gum

Answer 3

Vestibula

Question 4

Acrodont teeth

Answer 4

Jaw and teeth connected

Example: fish

Question 5

Pleurodont teeth

Answer 5

Snake

Question 6

Thecodont teeth

Answer 6

Teeth embedded in sockets and have well developed root

Example: humans

Question 7

Diphyodont teeth

Answer 7

Have both milk teeth and permanent teeth

Humans have 20 milk teeth and 30 permanent teeth

Question 8

Monophydont teeth

Answer 8

Occurs only once in a lifetime

12 teeth and human

Question 9

Homodont teeth

Answer 9

All the teeth have the same shape

Question 10

Heterodont teeth and its types

Answer 10

It can be of different shapes and have a dental formula
Incisors
Canine
Pre molar: bicuspid
Molar

Question 11

Enamel is secreted by

Answer 11

Ameloblast which are ectodermal in origin

Question 12

What are crown and root composed of

Answer 12

It is composed of dentine secreted by odontoblast which are mesodermal in origin

Question 13

How is tongue attached to the floor of mouth

Answer 13

Frenulum

Question 14

Enlarged pharyngeal tonsils are called

Answer 14

Adenoids

Question 15

What is removal of tonsils called

Answer 15

Tonsillectomy

Question 16

Pathologically and last tonsils are called

Answer 16

Adenoids which causes nasal congestion

Question 17

Arrangement of lymphoid tissues in oral cavity

Answer 17

Waldeys’s lymphatic ring

Question 18

Circular muscle and longitudinal muscle helps in

Answer 18

Peristalsis which is controlled by a bunch of autonomic nerve fibres called auerbach’s plexus

Question 19

Submucosa have a bunch of auto nerve fibres called

Answer 19

Meissners plexus