Topic 10: The Chemical Senses

What is NOT TRUE about the chemical senses?

• The senses are directly exposed to the external environment.

• The senses have potential to be damaged by toxins

• It is extremely hard to damage the sense cells

• These cells undergo neurogenesis

Which sensory pathway projects to the ipsilateral cortex?

• The olfactory pathway

• The gustatory pathway

• The visual pathway

• The somatosensory pathway

Which of the following taste qualities could help you identify a potentially harmful or toxic food?

• Sweet

• Umami

• Salty

• Bitter

Which two are a part of the second messenger that activates chemotransduction on the tongue?

• sour (H+) and salty (Na+)

• Bitter and sweet

• Bitter and sour (H+)

• Sweet and salty (Na+)

The initial place that the olfactory and gustatory information integrate in the brain is in the ________.

• Thalamus

• Amygdala

• Piriform Cortex

• Orbitofrontal Cortex