The Mouth

Question 1

Defences of the oral cavity

Answer 1

Mucosa
Salivary glands
Palatine tonsils

Question 2

Defences of the oral cavity- mucosa

Answer 2

Physical barrier

Question 3

Defences of the oral cavity- salivary glands

Answer 3

Saliva washes away food particles which bacteria and viruses may use as metabolic support
Surrounded by lymphatic system which contain a range of functional immune cells

Question 4

Defences of the oral cavity- palatine tonsils

Answer 4

Acts as surveillance system for immune system

Question 5

Functions of the mouth

Answer 5

Responsible for chewing, savouring and swallowing ingested food
Forms a bolus

Question 6

Bones of mouth

Answer 6

Maxilla - part of the skull itself
Mandible. - the jaw

Question 7

How many teeth do children have

Answer 7

20

Question 8

How many teeth do adults have

Answer 8

32 (16 maxillary and 16 mandibular)

Question 9

Teeth per quadrant

Answer 9

2 incisors
1 canine
2 premolars
3 molars

Question 10

Function of tongue

Answer 10

Responsible for gustation (taste)

Question 11

5 tastes

Answer 11

Sweet
Sour
Salty
Bitter
Umami

Question 12

3 types of tastebuds

Answer 12

Filiform
Fungiform
Circumvallate

Question 13

Filiform tastebuds

Answer 13

Anterior
No taste perception
Add texture to the tongue

Question 14

Fungiform tastebuds

Answer 14

Anterior and lateral
10 taste cells

Question 15

Circumvallate

Answer 15

Border between anterior 2/3 and posterior 1/3 of tongue
100 taste cells

Question 16

Toby, a keen 3rd year medical student, is looking at a histology slide of glandular tissue under a microscope in The Diamond. The gland that the slide was taken from secretes into the mouth. The secretory cells are arranged in spherical clumps that resemble bunches of grapes - they appear dark pink when stained. Which of these chemicals is secreted by this type of glandular tissue?

Answer 16

Alpha amylase