Ear- Hearing Flashcards
What is the ear divided into?
What is the outer ear composed of?
What is the middle ear composed of?
What structure has 2 divisions in the inner ear?
Where is the bony labrynth located and what is it further divided into?
What is the difference between the bony and membranous labryth
What is the role of peilymph (BL) and endolymph (ML)?
What is the cochlear?
What is the general role of HC in hearing?
Describe the nature of HC in the organ of corti
What are INner HC?
Free standing. only attached to TM which exit into the endolympth of CD.
What is stereocilia?
Whats the difference between inner and outer HC?
What is one main nature of OHC?
Electrical motility
What does amplification of OHC lead to and how can it be caused?
List the physiology of hearing in location that events proceed
- Auricle
- External Auditory Canal= SW enters
- Ear drum= vibrates
- Malleous B connect w/ ED= vibrates= AMP sounds
List 6 stages describing sound transmission through the ear
Give 5 step process of sound transmission
Describe the basilar membrane
Descibe how HC get exited in the organ of corti
Describe the transduction of vibration in 8 steps
What does cochlear amplification lead to?
In cochlear amplification how are OHC activated?
What is the auditory P/w to the brain?
What gives a picture of your hearing?
What can cause hearing problesma and what is done to test the ears hearing?
What types of hearing defects can occur?
