Smell

Question 1

What do you call the sence of smell?

Answer 1

Olfaction

Question 2

What is olfaction?

Answer 2

The detetion of chemicals dissolved in the air

Question 3

Olfaction is a form of what type of reception?

Answer 3

Chemoreception

Question 4

Odours are caused by what?

Answer 4

Chemicals dissolved in the air

Question 5

What is an odour?

Answer 5

Chemicals dissolved in the air that activate the olfactory system

Question 6

Mammals have about how many genes for odor reception?

Answer 6

1000

Question 7

Humans have about how many function odour reception genes?

Answer 7

347

Question 8

Are all odour recption genes functional?

Answer 8

No only portions

Question 9

What the two theories of olfaction?

Answer 9

Shape and vibration

Question 10

How does the shape theory of olfaction work?

Answer 10

Each receptor detects a feature of the molecule

Question 11

How does the vibration theory of olfaction work?

Answer 11

Odour receptors detect the frequencies of vibrations of odour molecules

Question 12

Where do we find olfactory membranes?

Answer 12

At the top of the nose

Question 13

Olfactory membranes are made up of what?

Answer 13

Olfactory epithelium

Question 14

How many hairs of receptor cells would you find on an individual nerve cell?

Answer 14

6 to 8

Question 15

Olfactory cells connect to nerves in an area known as what?

Answer 15

Olfactory plexus

Question 16

What happens to air when it is drawn into the nose?

Answer 16

it is warmed and any odiferous molecules dissolve in the mucusof the ling of the nasal cavity

Question 17

When triggered, nerves from the olfactory plexus send message where?

Answer 17

The main olfactory bulb of the brain

Question 18

How many layers in the main olfactory bulb?

Answer 18

5

Question 19

What are the layers of the main olfactory bulb from the surface to the centre?

Answer 19

Glomerular layer, external plexiform layer, mitral cell layer, internal plexiform layer, granule cell layer

Question 20

What does the olfactory bub do?

Answer 20

Transmits smell information from the nose to the brain

Question 21

What is the limbic system responsible for?

Answer 21

Memory, emotions, our basic instincts, mechanical functions

Question 22

How many types of olfaction do we like most mammals and reptiles have?

Answer 22

2

Question 23

As well as our main olfactory system we also have our?

Answer 23

Accessory olfactory system

Question 24

The accessory olfactory system is thought to detect what?

Answer 24

Pheremones

Question 25

Where are pheremones detected?

Answer 25

The accessory olfactory system although the main olfactory system can detect them as well

Question 26

Where are stimuli detected in the accessory olfactory system?

Answer 26

The vomeronasal organ

Question 27

Where is the vomeronasal organ?

Answer 27

In the vomer which is between the nose and the mouth

Question 28

When is a womens strongest sense of olfaction?

Answer 28

Ovulation

Question 29

What things work together to contribute to flavour?

Answer 29

Olfaction, taste and trigeminal receptors

Question 30

What is anosmia?

Answer 30

Lack of ability to smell due to a lack of functioning olfaction

Question 31

What to you call the lack of ability to smell due to the lack if functioning olfaction?

Answer 31

Anosmia

Question 32

What is hyposmia?

Answer 32

Decreased ability to smell

Question 33

What do you call the decreased ability to smell?

Answer 33

Hyposmia

Question 34

What is phantosmia?

Answer 34

Hallucinated smell often unpleasant in nature

Question 35

What do you call a hallucinated smell that is often unpleasant in nature?

Answer 35

Phantosmia

Question 36

What is dysosmia?

Answer 36

Things smelling differently than they should?

Question 37

What do you call it when things smell differently than they should?

Answer 37

Dysosmia

Question 38

What is hyperosmia?

Answer 38

An abnormally acute sense of smell

Question 39

What do you call an abnormally acute sense of smell?

Answer 39

Hyperosmia

Question 40

What is olfactory fatigue?

Answer 40

The temporary normal inability to distinguish a particular odour

Question 41

What do you call the temporary normal inability to distinguish a particular odour?

Answer 41

Olfactory fatigue

Question 42

Why is olfactory fatigue important in a spa?

Answer 42

So that clients arent constantly overpowered by the bad smells like seaweed and mud

Question 43

Is olfactory fatigue permanent?

Answer 43

No

Question 44

When does the sense of smell return to normal with olfactory fatigue?

Answer 44

After leaving the area of high odour the sensitivty is restored with time

Question 45

What is aromachology?

Answer 45

The study of the influence of odours on behaviour

Question 46

What do yo call the study of the influence of odours on behaviour?

Answer 46

Aromachology

Question 47

How is the olfactory sense different from the other senses?

Answer 47

It relies on mass not energy to trigger action potentials