B3 Hearing

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1

B3 Hearing

Planning

1. Short revision 
   
   
2. B3 the ears
    

What's the name for information from the surrounding that can be picked up by sense organs?

1. Nerve
2. Impulse
3. Stimulus
4. Touch receptor

Match the correct adequate stimulus to the sensory organ

Sound

Taste

Light

Smell

gentle contact is the stimulus for?

1. our sense of taste
2. our sense of smell
3. our sense of touch
4. our sense of hearing

Put in the most logical order:
-impulse -stimulus -sensory cell -brain

1. stimulus-impulse-sensory cell-brain
2. impulse-brain-sensory cell-stimulus
3. sensory cell-impulse-brain-stimulus
4. stimulus-sensory cell-impulse-brain

In our skin we have .... different types of sensory cells

1. 1
2. 2
3. 3
4. 4

B3 Hearing

Learning objective: You must be able to state the parts of the ear with their functions and characteristics.

What we discuss:

• Pitch and volume
  
• Parts of the ear
• Functions of the parts

B3 Hearing

How does this sound change??

1. From quiet to loud
2. From loud to quiet
3. From high pitch to low pitch
4. From low pitch to high pitch

How does this sound change?

1. From quiet to loud
2. From loud to quiet
3. From high pitch to low pitch
4. From low pitch to high pitch

sound is picked up by the auricle

air in the auditory canal vibrates

The eardrum vibrates

ossicles vibrate

the membrane (oval window) vibrates

fluid in the cochlea vibrates

sensory cells are being stimulated

impulses are made

the auditory nerve brings impulses to the brain

The tympanic cavity (middle ear) is connected to the back of the throat. When you have laryngitis bacteria can reach the middle ear through this connection and can cause an middle earinfection. At which spot will the infection be?

1. S
2. R
3. Q

Wow, difficult! Easy peazy

😒🙁😐🙂😃

Revision 

What did we talk about:

• Pitch and volume
  
• Parts of the ear
• Functions of the parts

Homework: Exercise  1, 2 + 7