GUSTATORY

Question 1

muscular organ in the mouth
of most vertebrates that manipulates food
for mastication and is used in the act of
swallowing

Answer 1

TONGUE

Question 2

oval body consisting of
three kinds of epithelial cells: supporting
cells, gustatory receptor cells, and basal
cells. This is where the receptors for
sensations of taste are located

Answer 2

TASTE BUDS

Question 3

KINDS OF CELLS IN THE TASTE BUDS

Answer 3

• SUPPORTING CELLS
• GUSTATORY CELLS
• BASAL CELLS

Question 4

contain microvilli and surround about 50 gustatory
receptor cells in each taste bud

Answer 4

SUPPORTING CELLS

Question 5

(gustatory hairs) project from each gustatory receptor cell to the
external surface through the taste pore, an opening in the taste bud

Answer 5

GUSTATORY CELLS

Question 6

stem cells found at the periphery of the taste bud near the connective
tissue layer, produce supporting cells, which then develop into gustatory receptor cells

Answer 6

BASAL CELLS

Question 7

these are taste buds found in elevations on the tongue which increase the surface
area and provide a rough texture to the upper surface of the tongue

Answer 7

PAPILLAE

Question 8

form an inverted V-shaped row at the back of the
tongue. Each of these papillae houses 100–300 taste buds

Answer 8

CIRCUMVALLATE/VALLATE PAPILLAE

Question 9

are mushroom-shaped elevations scattered over the entire surface of the tongue that contain about five taste buds each

Answer 9

FUNGIFORM PAPILLAE

Question 10

are located in small trenches on the lateral margins of the tongue, but most of their taste buds degenerate in early childhood

Answer 10

FOLIATE PAPILLAE

Question 11

located in the entire surface of the tongue has. These
pointed, threadlike structures contain tactile receptors but no taste buds. They
increase friction between the tongue and food, making it easier for the tongue
to move food in the oral cavity.

Answer 11

FILIFORM PAPILLAE

Question 12

PHYSIOLOGY OF GUSTATION

Answer 12

o Saliva dissolves the food(taste) substance
o Taste substance enters taste pores
o Taste substance comes in contact with the plasma membrane of the
gustatory cells
o Generation of nerve impulses by way of receptor potential
o Transmission of nerve impulses by the CN that supply afferent fibers to taste
buds (facial, glossopharyngeal’ vagus nerves)
o Medulla
o Thalamus (relay station)
o Gustatory area (temporoparietal lobe) in the cerebral cortex