Crash Course: The Sense of Taste and Smell

What condition did Olivia develop after her bike accident?

• Agoraphobia

• Amnesia

• Aphasia

• Anosmia

What is anosmia?

• Loss of vision

• Loss of hearing

• Loss of the sense of smell

• Loss of the sense of taste

What are chemoreceptors responsible for detecting?

• Pressure on the skin

• Sound waves

• Molecules in food and air

• Light waves

Which sense is most fundamental and sharpest at birth?

• Touch

• Smell

• Hearing

• Vision

What is the main organ of the olfactory system?

• Olfactory epithelium

• Olfactory bulb

• Mitral cell

• Glomerulus

How many different smells can humans identify according to scientists?

• About 5,000

• More than 20,000

• About 10,000

• About 1,000

What is the role of mitral cells in the olfactory system?

• Detect light waves

• Filter molecules

• Relay signals to the brain

• Detect sound waves

What is debunked about the taste maps of the tongue?

• Taste is 80% smell

• All tastes register in all parts of the tongue

• Tastes register only in certain areas

• Taste buds are not real

What triggers action potentials in taste sensation?

• Light

• Chemical molecules

• Electromagnetic stimuli

• Pressure

How often are gustatory cells replaced?

• Every week

• Every year

• Every month

• They are not replaced