PHYSIOLOGY - taste and smell

Question 1

ageusia definition

aetiology (3)

Answer 1

loss of taste

nerve damage, inflammation, endocrine problems

Question 2

hypogeusia definition

aetiology (2)

Answer 2

reduced sense of taste

chemo, medication

Question 3

dysgeusia definition

aetiology (lots)

Answer 3

altered sense of taste

poor dental hygiene, GORD, resp infection, medication, chemo

Question 4

by what process does odorants normally reach olfactory receptors

Answer 4

diffusion

Question 5

what supply taste for anterior 2/3 of tongue

Answer 5

CN VII chorda tympani branch of facial

Question 6

what nerve supplies tasted for posterior 1/3 of tongue

Answer 6

CN IX glossopharyngeal

Question 7

what supplies taste for taste buds not on tongue (eg in pharynx)

Answer 7

CN X vagus

Question 8

anosmia definition

aetiology (4)

Answer 8

no sense of smell (temporary or permanent)

viral infection, allergy, nasal polyps, head injury

Question 9

hyposmia definition

aetiology (5)

Answer 9

reduced sense of smell

viral infection, allergy, nasal polyps, head injury, PARKINSONS

Question 10

dysosmia definition

aetiology (1)

Answer 10

altered sense of smell

hallucinations