Taste

Question 0

These are CLUSTERS of CELLS that lie either NEAR or WITHIN PAPILLAE.

Answer 0

Taste Buds

Question 1

TASTE RECEPTORS are LOCATED in the ___________.

Answer 1

Taste Buds

Question 2

These are BUMPS or RIDGES of the TONGUE.

Answer 2

Papillae

Question 3

These are stimulated when CHEMICAL SOLUTIONS PENETRATE a PORES in the TASTE BUD.

Answer 3

Taste Cells

Fig. 7.20 p. 172

Question 4

INTEGRITY of TASTE CELLS depend on the ___________ that subserves it.

Answer 4

Sensory Neuron

Question 5

The TWO (2) stages in process of EXCITING TASTE RECEPTORS are:

Answer 5

1.) PENETRATION of taste bud by CHEMICAL STIMULUS

OR

2.) Transduction

Question 6

What are the FIVE (5) TASTE QUALITIES?

Answer 6

Sweet
Sour
Salty
Bitter
Umami

Question 7

The taste quality SWEET is STIMULATED by ________.

Answer 7

Sugar

Question 8

The taste quality BITTER is STIMULATED by _________.

Answer 8

Alkaloids

Question 9

The taste quality SOUR is STIMULATED by _________.

Answer 9

Acids

Question 10

The taste quality SALTY is STIMULATED by _________.

Answer 10

Salts

Question 11

The taste quality UMAMI is STIMULATED by _________.

Answer 11

Glutamate and Amino Acids

MONOSODIUM GLUTAMATE) (MSG

Question 12

True or False: all five taste receptors are located in the center of the tongue.

Answer 12

FALSE, there are NO TASTE BUDS in the CENTER of the TONGUE.

Question 13

This condition is often referred to as TASTE BLINDNESS.

Answer 13

Ageusia

Question 14

True or False: individual fibers in the taste nerve have the same level of sensitivity to different stimuli.

Answer 14

FALSE,

INDIVIDUAL FIBERS in the TASTE NERVE have DIFFERENT SENSITIVITIES to different stimuli.

Question 15

True or False: it is anatomically impossible for two or more fiber to subserve one taste bud.

Answer 15

FALSE,

It is anatomically POSSIBLE for two or more fibers to subserve one taste bud

Question 16

What happens if the TONGUE is CONTINUOUSLY STIMULATED w/ PARTIAL STIMULUS? (2 effects)

Answer 16

1. ) ABSOLUTE THRESHOLD is ELEVATED

2. ) Subjective INTENSITY of ADAPTING STIMULUS DECREASED

Question 17

True or False: one stimulus of taste can be masked by another.

Answer 17

TRUE,

For example the SWEET taste in lemonade OVERPOWERS the SOUR taste.

Question 18

Branches of CRANIAL NERVES ___ and ___ SUBSERVE TASTE BUDS.

Answer 18

VII (seven)

IX (nine)

Question 19

In regards to TASTE neural centers and PATHWAYS, the SOLITARY __________ TERMINATES in the SOLITARY __________ of ___________(part of the brain).

Answer 19

solitary TRACT
solitary NUCLEUS
MEDULLA

see HANDOUT

Question 20

From the SOLITARY NUCLEUS of TASTE PATHWAYS, fibers are processed via the _______________ to the ________________ which is part of the ________________ of the THALAMUS.

Answer 20

• MEDIAL LEMNISCUS
• ARCUATE NUCLEUS
• POST VENTRAL NUCLEUS (PVN)

see HANDOUT

Question 21

From the POST VENTRAL NUCLEUS, FIBERS a PROJECT to AREAS _______ in the __________ lobe.

Answer 21

3-1-2
PARIETAL lobe

Fig.7.2 p.183

(see handout)