Revision hearing - Smelling/tasting

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Hearing and smelling

Revision on hearing
New theory on smelling

Short recap: Hertz is for (1)?
Decibel is for (2)?

1. 1- high vs low 2 - volume
2. 1 - volume 2- high vs low

1. This sound becomes higher
2. This sound becomes louder
3. This sound becomes lower
4. This sound becomes softer

1. 1 is the highest sound
2. 2 is the highest sound
3. 3 is the highest sound
4. All equally high pitched, just different volume!

The pinna collects this stimulus

1. Electric signals
2. Soundwaves
3. Sounds
4. Vibrations

What is the correct order?

1. stirrup - hammer - anvil
2. Stirrup - anvil - hammer
3. anvil - hammer - stirrup
4. hammer - anvil - stirrup

1. These parts also belong to: nervous system
2. These parts also belong to: respiratory system
3. These parts also belong to: skeletal system
4. All answers are wrong

The next part of the ear in hearing is:

1. Auditory nerve
2. Semicircular tubes
3. Eardrum
4. Cochlea

The function of this organ is:

1. Amplifying soundwaves
2. Minimizing soundwaves
3. Creating a nerve impulse
4. Both A and C are correct

This part is filled with:

1. Fluid and tiny hairs
2. Fluid and sensory neurons
3. Sensory neurons and tiny hairs
4. Fluid and nerve impulses

When diving. Pressure in the outer ear is ...

1. higher than in the middle ear
2. lower than in the middle ear
3. higher than in the inner ear
4. lower than in the inner ear

When climbing a mountain, pressure in the middle ear is...

1. higher than in the outer ear
2. lower than in the outer ear
3. higher than in the inner ear
4. lower than in the inner ear

What did you find most difficult about hearing last lesson?

Smell:

What do we technically smell?
Which organs/cells do we need?
How is tasting involved? (paragraph 3.8)

What do we
technically smell?

Which cells/organs do we need?

Chemicals in the air - Nasal cavity - Olfactory cells - Olfactory bulb - nerve impulse - olfactory nerve - brain

Which flavors can our
tongue individually taste?

Five flavors

Salt / Sour / Bitter / Sweet / Umami (potatoe/chicken-ish)

Homework

Do 3.7 and 3.8
Questions on 3.6 individually