QS Study

Olfaction and taste are intimately linked. The taste buds of the tongue recognize taste, and the nerves in the nose recognize olfaction or smell. Both sensations are communicated to the brain, which integrates the information so that flavors can be recognized. Occasionally, injury of olfaction and taste is due to a serious disorder, such as a tumor.

Abnormality of taste includes

(i) Ageusia: Absence of the sense of taste.

(ii) Hypogeusia: Diminished taste sensitivity.

(iii) Dysgeusia: a Disturbed sense of taste.

(iv) Temporary loss of taste: Due to the administration of the drug.

Fig: Abnormalities of Taste and Olfaction

Abnormality of olfaction includes

(i) Anosmia: Absence of the sense of smell.

(ii) Hyposmia: Diminished olfactory sensitivity.

(iii) Dysosmia: Distorted sense of smell.

Historically, disorders of taste and olfaction have been complicated to identify and treat, often because of a short of knowledge and perceptive of these senses and their disease states. A partial loss of olfaction or smell (hyposmia) and complete loss of olfaction or smell (anosmia) are the most familiar disorders of olfaction and taste. Because distinguishing one flavor from another is based largely on smell, people often first notice that their ability to smell is reduced when their food seems tasteless.