2) Chemical substances in food dissolve in saliva
Substances form the food need to be dissolved and and a little bit degraded (by teeth and some of the enzymes in the mouth) in order to react chemically with taste receptors
1) Taste receptors are stimulated
Taste receptors are located in the oral cavity, usually on the tongue but also pharynx and the epiglottis (receptors are placed on taste buds within papilla on tongue)
3) Signals are sent to the thalamus by the facial nerve
From the ventral posterior medial nucleus in thalamus sensation is projected to the gustatory cortex
4)The gustatory cortex processes taste perception
The sensation of taste includes: sweetness, sourness, saltiness, bitterness, and umami
Answer:
The correct answer is option b. "Deficiencies in Vitamin B12 can lead to pernicious anemia".
Explanation:
Pernicious anemia is a medical condition at which the body could not make enough healthy red blood cells because it lacks vitamin B-12. The lack of vitamin B-12 makes that red blood cells became bigger, which makes them inefficient for oxygen transportation, producing anemia in the patient. This condition is easily treated with the intake of vitamin B-12 pills or shots
