making sense of smells a guide for understanding farmstead odors part 1: physiology of smell douglas...

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Making Sense of Smells A Guide for Understanding Farmstead Odors Part 1: Physiology of Smell Douglas W. Hamilton Waste Management Specialist Biosystems and Agricultural Engineering

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Making Sense of SmellsA Guide for Understanding Farmstead Odors

Part 1: Physiology of Smell

Douglas W. HamiltonWaste Management SpecialistBiosystems and Agricultural Engineering

Five Senses

Five Senses

Physical

Chemical

Five Senses

Physical

Chemical

Touch

Hearing

Sight

Five Senses

Physical

Chemical

Touch

Hearing

Sight

Smell

Taste

Animal Sense of Smell

Vomeronasal Organ

Olfactory Organ

Trigeminal Nerve

© Dr. Michael Meredithwww. neuro.fsu.edu

Human Sense of Smell

Vomeronasal Organ

Olfactory Organ

Trigeminal Nerve

The Human Nose and Olfactory Organ

www.news.softpedia.com

www.emptynosesyndrome.org

Normal Breath

www.emptynosesyndrome.org

Sniffing

Normal Breath

www.news.softpedia.com

www.emptynosesyndrome.org

Breathing Out

Scent

www.emptynosesyndrome.org

Scent

Aroma

www.emptynosesyndrome.org

Olfactory Bulb

John C. Leffingwell, Ph.D. www.leffingwell.com

Olfactory Receptors

Tim Jacobs www.cardiff.ac.uk/biosi

Tim Jacobs www.cardiff.ac.uk/biosi

Odor Fatigue

The longer you smell an odor, the weaker the odor becomes.

Olfactory Bulb

John C. Leffingwell, Ph.D. www.leffingwell.com

Patrick J. Lynch Wikipedia Commons 2 Nov 2007

Patrick J. Lynch Wikipedia Commons 2 Nov 2007

www.thebrainlabs.com

The Limbic System

Proust Effect

Anonymous Wikipedia Commons 21 Nov 2006

Patrick J. Lynch Wikipedia Commons 2 Nov 2007

Patrick J. Lynch Wikipedia Commons 2 Nov 2007

Patrick J. Lynch Wikipedia Commons 2 Nov 2007

Grays Anatomy, 20 ed Wikipedia Commons 23 Jan 2007

Grays Anatomy, 20 ed Wikipedia Commons 23 Jan 2007

Opthalmic

Grays Anatomy, 20 ed Wikipedia Commons 23 Jan 2007

Opthalmic

Maxillary

Grays Anatomy, 20 ed Wikipedia Commons 23 Jan 2007

Opthalmic

Maxillary

Mandibular

Some Odorants Sensed through the Trigeminal Nerve

Some Odorants Sensed through the Trigeminal Nerve

Menthol

Some Odorants Sensed through the Trigeminal Nerve

Menthol

Capsaicin

Some Odorants Sensed through the Trigeminal Nerve

Menthol

Capsaicin

Acetic Acid

Some Odorants Sensed through the Trigeminal Nerve

Menthol

Capsaicin

Acetic Acid

Ammonia