PSYC314 Chapter Notes - Chapter 7: Medial Geniculate Nucleus, Cochlear Nucleus, Inferior Frontal Gyrus
13 Apr 2016
School
Department
Course
Professor
Document Summary
Chapter 7 notes audition, the body senses, and the chemical senses. The stimulus: sounds produced by objects that vibrate and set molecules of air into motion, pitch: determined by frequency and measured in hertz (hz, loudness: function of intensity, timbre: nature of sound. Anatomy of the ear: sound is funneled via the pinna through the ear canal to the, tympanic membrane: eardrum; vibrated with the sound, ossicles: bones of the middle ear that vibrate from vibrations from the tympanic membrane. Malleus: hammer; connects the tympanic membrane to the incus and transmits vibrations via the. Baseplate of the stapes presses against the membrane behind the oval window, the opening in the bony processes surrounding the cochlea. Cochlea is part of the inner ear: filled with fluid: bones provide more forceful vibrations through the liquid membrane. Origin of corti: receptive organ that consists of the basilar membrane, hair cells, and tectorial membrane: hair cells: auditory receptor cells anchored to the basilar membrane.
