Taste & Smell

Question 1

Taste

Answer 1

gustation

Question 2

Filiform papille

Answer 2

small. parallel rows. NO taste buds. help grasp/manipulate food

Question 3

Tongue

Answer 3

stratified squamous

Question 4

Fungiform Papille

Answer 4

mushroom shaped. taste buds

Question 5

Foliate Papille

Answer 5

posteriorlateral surface

Question 6

vallate papille

Answer 6

V shaped row on border between 1/3 posterior part of the tongue and front 2/3. taste buds

Question 7

Taste buds

Answer 7

have taste receptors, gustatory and basal epithelium.
also have long gustatory hairs (microvilli) that extend through the taste pore and to the surface
regenerate every 7-10 days.
sweet, sour, salty, bitter, umami

Question 8

Gustatory Pathway

Answer 8

facial (anterior 2/3), glossopharyngeal (posterior 1/3), facial.
bitter taste receptors have been found in the stomach.
nerves synapse in solitary nucleus of the medulla–> thalamus–> gustatory area in cerebral cortex(insula)

Question 9

SMell

Answer 9

olfaction

Question 10

3 types of olfaction epitheliym

Answer 10

olfactory sensory neurons (bipolar)
supporting epithelial cells
basal epithelial cells

Question 11

olfactory epithelium

Answer 11

psuedostratified columnar cells

Question 12

olfactory sensory neurons

Answer 12

bipolar

have apical dendrite that goes to surface and ends in a knob where cilia radiate off

Question 13

Olfactory Path

Answer 13

olfactory nerve–> through cribiform plate–> olfactory bulbs–> mitral cells in clusters (glomeruli) –> olfactory tract –> piriform and limbic lobes

Question 14

Anosomia

Answer 14

absence of smell due to an injury, allergies, cold, zinc deficiency

Question 15

unicinate fits

Answer 15

distortion of smell or olfactory hallucinations. Due to irritation or injury to the head.