CSD 306K Lecture Notes - Lecture 8: Temporal Lobe, Vestibulocochlear Nerve, Hair Cell

• School: UT-Austin
• Department: Communication Sciences and Disorders
• Course: CSD 306K
• Professor: Natalie Czimskey

Document Summary

Meatus means opening and this is the opening in the skull, in bone. Oil glands in outer 1/3 of canal; cerumen (wax) serves as protection and lubrication; scent is repellent to insects. Hair follicles help reduce dust & wax build-up. When you remove wax, you are at more risk for mold to grow in your ear. Drum-like in that skin in stretched across an opening. If you tear this, you can either not hear anything or you could hear a sound that sounds like a blown out. Can only see this, if we shine a light on it (first picture is a healthy tp, if we remove the tp look at second picture) Middle ear (fit on a dime) three smallest bones in the human body and is where all human hearing is revolved around. Malleus-- connected to the tympanic membrane and the incus. Stapes-- moves in and out of the oval window.