Textbook Notes (368,415)
Canada (161,876)
Psychology (1,112)
PSYC 100 (335)

The Ear and its Functions

6 Pages
Unlock Document

PSYC 100
Ingrid Johnsrude

The Ear and It’s Functions 6/8/2012 6:47:00 AM The Ear and its Functions Pinna  flesh covered cartilage attached to the side of the head  helps funnel sound through the ear canal toward the middle and inner ear Eardrum  Tympanic membrane  Flexible membrane that vibrates back and forth in response to sound waves and passes these vibrations on the receptor cells in the inner ear Ossicle – one of the 3 bones in the inner ear  Hammer  Anvil  Stirrup o presses against a membrane behind an opening in the bone surrounding the cochlea : oval window (bone surrounding the cochlea) o transmitting sound waves into the liquid inside the cochlea where it can reach the receptive organ for hearing Cochlea – a snail shaped chamber set in bone in the inner ear where auditory transduction takes place Basilar membrane – a sheet of tissue that contains the auditory receptor cells Auditory hair cells – transduce mechanical energy caused by the flexing of the basilar membrane into neural activity Round window  an opening in the bone surround the cochlea  movements of the membrane behind this opening permit vibrations to be transmitted through the oval window into the cochlea Cilium  a hair like appendage of cell  involved in the movement of sensory information  found in the receptors in the auditory and vestibular systems Vestibular apparatus – the receptive organs of the inner ear that contribute to balance and perception of head movement Vestibular sac – one of a set of 2 receptor organs in each inner ear that detect changes in the tilt of the head Semicircular canal- one of a set of 3 organs in the inner ear that respond to rotational movements of the head
More Less

Related notes for PSYC 100

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.