S 1.5

Question 1

• These are are ovoid to barrel-shaped clusters of pale-staining cells lying vertically in stratified squamous epithelium.
• They extend from basement membrane to the free surface.
• Each of these has 50-75 cells, whose arrangement resembles segments of a citrus fruit.
• About 20-40 cells are slender, spindle-shaped taste (gustatory) cells that are chemoreceptors.

Answer 1

TONGUE: Taste Buds

Question 2

TONGUE: Taste Buds:
Taste buds are ovoid to barrel-shaped clusters of pale-staining cells lying vertically in ________ ________ epithelium.

Answer 2

stratified squamous

Question 3

TONGUE: Taste Buds:
Each taste bud has 50-75 cells, whose arrangement resembles segments of a citrus fruit. About 20-40 cells are slender, spindle-shaped taste (gustatory) cells that are ___________.

Answer 3

chemoreceptors

Question 4

TONGUE: Taste Buds:
Nuclei of these cells are _______ to __________ and are centrally located. These cells are mixed with several types of tall supporting (sustentacular) cells that resemble staves of a barrel.

Answer 4

ovoid; columnar

Question 5

TONGUE: Taste Buds:
Each taste bud communicates at its _____ with the oral cavity via a taste pore, into which long apical microvilli of the elongated cells project

Answer 5

apex

Question 6

TONGUE: Taste Buds:
Taste cells are epithelial cells that are contacted by synapses at their ______ aspect by __________ nerve fibers.

Answer 6

basal; afferent