Anatomy of Smell
This part of the nose contains the receptors that detect odor molecules
What is the olfactory epithelium
Odor molecules must dissolve in this substance before receptors can detect them.
What is mucus?
Smells are strongly linked to this mental ability because of the olfactory pathway.
What is memory?
Humans can recognize thousands of different smells thanks to millions of receptors in the nose.
What is olfaction?
These flying mammals use echolocation to hunt insects in the dark.
What are bats?
These tiny hair-like structures on olfactory neurons help trap odor molecules.
What are cilia?
These specialized nerve cells detect smells and send signals to the brain.
What are olfactory sensory neurons?
This part of the brain helps process emotions connected to smells.
What is the amygdala?
This sense is most strongly connected to memory and emotion.
What is smell?
Echolocation works by sending out sound waves and listening for these returning signals.
What are echoes?
This brain structure receives smell information first and sends it deeper into the brain.
What is the olfactory bulb?
The process of becoming less sensitive to a smell over time is called this.
What is olfactory adaptation?
This brain structure helps form memories triggered by scents.
What is the hippocampus?
This common cold symptom often makes food taste bland because smell and taste work together.
What is a stuffy nose?
Dolphins use echolocation underwater to help locate food and navigate through this environment.
What is the ocean?
Unlike other senses, olfaction connects directly to this emotional brain system.
What is the limbic system?
Smell signals travel directly to the brain before reaching this thinking region.
What is the cerebral cortex?
Because smell bypasses the thalamus, reactions to scents can be this type of response.
What is subconscious or immediate?
Snakes “smell” partly by using this body part to collect scent particles.
What is the tongue?
Echolocation is especially useful for animals that are active during this time of day.
What is nighttime?
Humans have about this many different olfactory receptor types.
What is about 450?
This happens when odor molecules bind to matching receptors in the nose.
What is signal transduction?
A certain smell suddenly bringing back a vivid memory is often called this effect.
What is scent-triggered memory recall?
This famous gas has odor added artificially so humans can detect leaks.
What is natural gas?
Did you know some scientists compare echolocation to “seeing with” this?
What is sound?