chemoreception: Media

physiology

Videos

Do different parts of the tongue taste different flavors?
The “tongue map” locates taste receptors for sweet, salty, bitter, and sour flavors...
Video: Encyclopædia Britannica, Inc.
Why does toothpaste make orange juice taste bad?
Learn why toothpaste affects the taste of certain foods.
Video: © American Chemical Society (A Britannica Publishing Partner)
How do artificial flavors mimic real ones?
Explaining the science behind taste and smell.
Video: © American Chemical Society (A Britannica Publishing Partner)
Why do dogs sniff each other's butts?
Why dogs sniff each other.
Video: © American Chemical Society (A Britannica Publishing Partner)
How do researchers study the mechanism of predictive coding?
Learn how researchers investigate the mechanism of “predictive coding,” by which...
Video: Courtesy of Northwestern University (A Britannica Publishing Partner)
How does the sense of smell influence human behavior?
Learn how the sense of smell influences human behavior.
Video: © World Science Festival (A Britannica Publishing Partner)

Images

Chemoreception
Animals, such as this pine grosbeak, use chemoreception to respond to chemicals that...
© Daniel Hebert/Shutterstock.com
Circumvallate papillae
Located on the surface of the back part of the tongue, circumvallate papillae contain...
Uniformed Services University of the Health Sciences (USUHS)
Synapse
Chemical transmission of a nerve impulse at the synapse. The arrival of the nerve...
Encyclopædia Britannica, Inc.
Taste buds
Taste buds on the human tongue exhibit sensitivity to specific tastes.
Encyclopædia Britannica, Inc.
Olfactory epithelium
The olfactory epithelium, found within the nasal cavity, contains olfactory receptor...
Encyclopædia Britannica, Inc.
Brain structure of the cat
In the brain of mammals such as the cat, the olfactory bulb is still important, but...
Encyclopædia Britannica, Inc.
Reptilian brain structure
In the brain of reptiles such as the caiman (related to the alligator and crocodile),...
Encyclopædia Britannica, Inc.
Olfaction (sense of smell)
Dogs such as pointers may sniff very rapidly when searching for a scent on the ground....
© Sally Anne Thompson/Animal Photography
Harvester ants
Harvester ants (Pogonomyrmex).
Grace Thompson—The National Aubudon Society Collection/Photo Researchers
Black-and-yellow mangrove snake (Boiga dendrophila)
A black-and-yellow mangrove snake (Boiga dendrophila) sticking out its forked...
© mgkuijpers/Fotolia
Pheromone
Red imported fire ants (Solenopsis invicta), as well as other ant species,...
Scott Bauer—ARS/USDA
Monarch butterfly on Buddleja
A monarch butterfly visiting the flowers of a butterfly bush (Buddleja davidii).
© R. Gino Santa Maria/stock.adobe.com
Sockeye salmon
Sockeye salmon (Oncorhynchus nerka). The chemical characteristics of a salmon's...
© Sekarb/Dreamstime.com
Mint
Mint plants such as spearmint (Mentha spicata) contain suites of monoterpene...
Runk/Schoenberger—Grant Heilman Photography
Onion
Onions (Allium cepa) produce volatile compounds called thiosulfinates. Humans...
Walter Chandoha
Cabbage
Head cabbage (Brassica oleracea, variety capitata) produces compounds...
© Corbis
Carrion flower
The carrion flower (Stapelia) has the appearance and odor of decayed meat,...
B.J.D. Meeuse
New Zealand tree nettle
The New Zealand tree nettle (Urtica ferox), showing secretory (glandular),...
G.R. Roberts, Nelson, New Zealand
Aedes aegypti mosquito
Mosquitoes such as Aedes aegypti, a carrier of yellow fever and dengue,...
Paul I. Howell, MPH; Prof. Frank Hadley Collins/Centers for Disease Control and Prevention (CDC) (Image Number: 9534)
Striped skunk (Mephitis mephitis)
Striped skunk (Mephitis mephitis).
E.R. Degginger/Encyclopædia Britannica, Inc.
Stinkbug
Stinkbugs such as Edessa rufomarginata release compounds that volatilize...
E.S. Ross
Predation cues
Aquatic bugs such as the common back swimmer (Notonecta glauca) release...
E van Herk
Gooseneck barnacles
Gooseneck barnacles (Lepas) are found on intertidal rocks. The growth of...
Norbert Wu/Planet Earth Pictures
Lactation
Exposure to certain tastes and odors early in life can affect an animal's food preferences....
age fotostock/SuperStock
Iris
A blue iris (Iris) with contrasting yellow nectar guides indicating the...
© G.A. Maclean/Oxford Scientific Films
Spanish licorice
A compound called glycyrrhizin, a triterpene glycoside, is extracted from Spanish...
A to Z Botanical Collection/Encyclopædia Britannica, Inc.
Human detection of flavor
The integration of odor and taste sensations in the human brain enables the detection...
Encyclopædia Britannica, Inc.
Scent tracking
Dogs such as Bloodhounds are commonly used by humans for scent tracking.
© Sally Anne Thompson/Animal Photography
Corn earworm
Corn earworm (Heliothis zea) larvae can cause severe damage to corn (maize)....
ARS/USDA
Pepper tree
Leaves of the pepper tree (Schinus molle) contain compounds that are capable...
Thase Daniel
How the Jacobson's organ works
This diagram shows the process of chemoreception using the Jacobson's (vomeronasal)...
Encyclopædia Britannica, Inc.