BIOL 2410 Lecture Notes - Lecture 21: Cochlear Duct, Tympanic Duct, Ear Canal
25 Nov 2016
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Respond to harmful chemical, mechanical and thermal stimuli. Prevent overuse of muscles, thermal damage to skin, ect. Two types of nociceptor bres: a-delta bres. Sent to the central nervous system via small. myelinated bres. Myelinated bres increase the speed of the neurotransmitter - reaches the brain. Sent to the central nervous system via small, unmyelinated bres. Evidently differences in speed of signal propagation. The inner ear: the external ear: Tympanic membrane ** (last part of the external ear) Auricle which is elastic cartilage covered in skin. Functions to conduct sound: the middle ear: Consists of the ear ossicles (small bones) Malleus: against the tympanic membrane of the external ear. Stapes: against the oval window of the inner ear. Connects to the nasopharynx behind the nasal cavity. When you"re sick with the u, uid will build up and move into the middle ear - this could cause an ear infection due to pressure build up.
