Gustatory And Olfactory System - 4/7 Cole

Question 1

Which lingual papillae have taste buds?

Answer 1

Fungiform (mushroom-shaped)
Circumvallate (100s of taste buds)
Foliate (leaf-shaped)

Question 2

Geographic tongue is what?

What papillae atrophies?

Answer 2

Oral manifestation of psoriasis

Filiform papillae

Question 3

What kind of tissue is fungi form papillae?

Taste buds?

Answer 3

SSNK

5 taste buds along apical surface

Question 4

What do serous glands secrete in the papillae that have taste buds?

Answer 4

Lingual lipase and VEGP

Question 5

What is distinctive about foliate papillae?

Answer 5

Parallel rows

Taste buds in lateral walls

Question 6

What are the 3 taste bud components?

Answer 6

Taste receptor cell
Supporting (immature) cell
Precursor (basal) cell

Question 7

What are ovoid chemoreceptors?

Found where?

Answer 7

Taste buds sensitive to bad tasting food

Soft palate, posterior pharynx, epiglottis

Question 8

In the mechanism of taste, what triggers the release of neurotransmitters at the afferent synapse?

Answer 8

Increase in intracellular Ca2+

Question 9

What type of taste sensation does CN 9 carry?

CN 7?

Answer 9

Sweet and bitter

All 5

Question 10

Where is the sweet taste located?

Salty?

Answer 10

Tip of tongue

Posterior and lateral to tip

Question 11

Where is sour taste located on the tongue?

Bitter?

Answer 11

Anterior 2/3 of dorsum and along the lateral margin (measures acid)

Posterior 1/3 of tongue

Question 12

Kohlrabi contains what?

Inhibits what?

Answer 12

Glucosinolates

Iodine uptake by thyroid

Question 13

Umami is linked to what receptor?

Answer 13

L-glutamate

Question 14

Taste buds on the palate register what?

Answer 14

Primarily bitter and sour

Question 15

What is associated with fat receptor?

Answer 15

CD36

Question 16

What epithelium is the nasal cavity lined by?

Answer 16

Pseudostratified columnar

Question 17

The lamina propria of the nasal cavity contains what?

Answer 17

Serous and mucous glands
Mast and plasma cells
Extensive vascular plexus

Question 18

What Igs are in the plasma cells of the nasal cavity lamina propria?

Answer 18

A, G, E

Question 19

What are the fx of the nasal mucosa?

Answer 19

Air hydration
Air filtration
Temperature regulation

Question 20

What type of epithelium is the olfactory epithelium?

What 3 cell types?

Answer 20

Pseudostratified columnar

Olfactory, supporting (sustentacular), and basal cells

Question 21

What are the fila olfactory associated with?

Answer 21

Olfactory cells (receptor cells)

Question 22

What type of cells are the supporting cells?

What pigment do they contain?

Fxs?

Answer 22

Columnar with oval nuclei

Light yellow

Physical support, nourishment, electrical insulation

Question 23

What is the life span of an olfactory cell?

Answer 23

30-60 days

Question 24

Axons of mitral cells form what?

Answer 24

Olfactory tract

Question 25

Glands of Bowman secrete serous fluid containing what?

What protective substances do they contain?

Answer 25

OBP

Lysozyme and IgA

Question 26

Kallman syndrome is characterized by what?

Lack what hormone?

What is the defective gene? Codes for what?

Answer 26

Anosmia, small genitals, sterile

GnRH

KAL-1 coding for anosmin 1

Question 27

What kind of epithelium is the tongue?

Answer 27

SSNK

Stratified squamous non-keratinized