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Transcript
Chapter-08 Human Physiology: Co-ordination and Control. Ear Learning output After completing this lesson students should be able to… describe structure of the different parts of ear. tell the hearing mechanism describe the balancing mechanism. External বহ িঃকর্ণ External ear Middle মধ্যকর্ণ Internal অন্তিঃকর্ণ External ear External ear Pinna Auditory meatus Tympanic membrane Middle ear Fenestra ovalis Eustachian tube Stapes Incus Malleus Fenestra rotunda Tympanic membrane Internal ear Semicircular canals Utriculu s Ampulla Vestibulo-cochlear nerve Succulus Cochlea pinna malleus Scala vestibuli Scala tympani Fenestra ovalis incus cochlea Auditory meatus Sound waves Tympanic membrane stapes Fenfstra ovalis Organ of corti Maintaining of body equilibrium Otolithic membrane Otolith Sensory cell Movement of otolith Sensory nerve Vertical condition Slanting condition Group-A Group-B Write down the structure of middle ear. Write down the structure of inner ear. Kamal looked at the aero plane after hearing the violent sound of aero plane. The he was about to fall but in the next moment he could control himself. In this event two special organs co-ordinated the works. a. What is sense organ? b. What is meant by binocular vision? c. Describe the process of function of the mentioned organ which function with light. d. Analyze the last sentence of the stem. HOME WORK Draw a figure of section a human ear.