Lecture 14: Histology of the Gustatory and Olfactory Systems

Question 1

What are the 4 types of Papillae of the tongue?

Answer 1

1) Filiform
2) Fungiform
3) Foliate
4) Circumvallate

Question 2

Identify the type of papillae in A and B

Answer 2

A) Fungiform papillae

B) Filiform papillae

Question 3

What type of lingual papillae is this?

Answer 3

Fungiform papillae

Question 4

Which type of lingual papillae contain taste buds?

Answer 4

1) Fungiform
2) Circumvallate
3) Foliate

Question 5

What type of lingual papillae are these?

Answer 5

Filiform papillae

Question 6

Label A-C

Answer 6

A) Foliate papilla

B) Taste buds

C) Serous glands

Question 7

What type of lingual papillae is this?

Answer 7

Foliate Papillae

*Notice it looks like a leaf, foliate means leaf!

Question 8

What type of lingual papillae is circled?

Answer 8

Circumvallate Papillae

Question 9

What type of lingual papillae?

Answer 9

Circumvallate

*Looks circular*

Question 10

What is the red arrow pointing to?

Answer 10

Serous Gland

Question 11

What is A pointing to; where are these found?

Answer 11

• Taste buds
• Found in Fungiform, Circumvallate, and Foliate Papillae
• Soft Palate
• Poterior Pharynx
• Epiglottis

Question 12

What is the function of the respiratory epithelium of the nasal cavity?

Answer 12

• Air hydration
• Adjusting temperature of inspired air

Question 13

What type of epithelium and what are the arrows pointing to?

Answer 13

• Olfactory epithelium
• Bowman’s Glands

Question 14

What 3 cells types found in Olfactory epithelium?

Answer 14

1) Sustentacular (support) cells
2) Olfactory Cells
3) Basal Cells

Question 15

Label A-C

Answer 15

A) Sustentcular (support) cells

B) Olfactory Cells

C) Basal Cells

Question 16

Label A-D

Answer 16

A) Olfactory Cilia

B) Sustentacular (support) cells

C) Bipolar nerve cells (Olfactory cells)

D) Stem cells (Basal cells)

Question 17

Identify the 3 cells types

Answer 17

Question 18

Identify the 2 arrows

Answer 18

Question 19

Identify the structures indicates by both arrows

Answer 19

Question 20

What are Bowman’s glands and where are they usually found?

Answer 20

• Serous (exocrine) glands
• Found in the Lamina Propria

Question 21

Olfactory epithelium is what kind?

Answer 21

Pseudostratified columnar epithelium

Question 22

What is indicated by arrows labeled A and function?

Answer 22

• Goblet Cells
• Moisten the surface of the nasal cavity

Question 23

What kind of tonsil?

Answer 23

Palatine tonsil

*Numerous crypts with large number of nodules/germinal centers

Question 24

What type of tonsil?

Answer 24

Lingual

*Typically raised folds, very similar to palatine. Look for skeletal m. of the tongue

Question 25

What type of tonsil?

Answer 25

Pharyngeal

*Pseudostratified epithelium. Not as well defined at the periphery as the lingual or palatine tonsils