Which ear disorder occurs when movement over-stimulates the hair cells found in the inner ear? O Motion sickness O Otis media O Tinnitus O Vertigo
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- Figure 36.5 Which of the following statements about mechanoreceptors is false? Pacini corpuscles are found in both glabrous and hairy skin. Merkel’s disks are abundant on the fingertips and lips. Ruffini endings are encapsulated mechanoreceptors. Meissner’s corpuscles extend into the lower dermis.Mitral cell Olfactory receptor cell Olfactory epithelium Olfactory gland Olfactory tract Olfactory cilia 00 ASS 43 Route of inhaled air containing odor molecules 11QUESTION 2 Identify the indicated part of the ear model. tympanic membrane incus stapes O malleus
- vestibular nerve semicircular canal incus malleus vestibule cochlea cochlear nerve stapes tympanic membrane 3 P PearsonStereocilia Tectorial membrane Inner hair cell Basilar membrane Outer hair cells Fibers of cochlear nerve Supporting cells ||| 2 10CHAPTER 15 The Special Senses HAPT ne s SECTION 3 Review Labeling Label the structures in the following diagram of the right ear. 2 Middte ear itiple ect the A blir 1EXternal ear 3Internal ear 10 The 11 Cranial nerve VIlI External lacoustic meatus d Cartilage Tympanic membrane Auditory tube Label the structures in the following micrograph of the internal ear. 14 15 16 17 e ano 18 soibnl 19 20 1sed adi to nolldiv ongade lenotaot ait taniope eles Section integration For a few seconds after you ride an express elevator from the 25th floor to the ground floor, you still ot og oro feel as if you are descending, even though you have come to a stop. Why? a t causes the maculae in the saccule op Your vestibule to slide upward, while producing the sensation of downward vertical motion when the elevabr Stops, t'll take a few seconds For the maculae to come to rest. As long as the maculae is displaced, move ment will be Perceived.
- When waves push the basilar membrane up and down, the stereocilia move back and forth, opening up ion channels, allowing this ion to move into the hair cells and depolarizing the membrane. O CF O K* Na+ O H* O Ca* Ca+The connection between hair cells and cranial nerve VIII is made by: direct contact release of neurotransmitters electrical synapses transduction The cochlear apex is: Not associated with a topographical mapping of frequency Where the helicotrema is located Most tuned for high frequencies Nearest to the oval window when the cochlea is uncoiled Displacement of the hair bundle toward the shortest stereocilia: O OWhich of these is the malleus? Middle Ear e b- ht k
- UAGM G enclostre irabo Diagram 2: Canine Eye Put the name of each part in its place 1.Gland 2.Conjunctiva 3. Cornea tear 4. Nictitating membrane 5. Optic nerve 6. retina 7. Nasal tear duct 3. Lens 9. Sclera 10. Irises 11. Pupil unctival ae chant Previus chanber Opte de pole graw chesber FunctionThe maculae of the utricle and saccule with their embedded otoliths and the semicircular canals _______. dectect changes in the rate at which the head is moving amplify soft sounds to improve hearing can only detect motion if the head moves at a constant velocityPut in Order (rearrange these structures in the order in which sound waves pass through them) auricle endolymph external auditory meatus incus malleus perilymph stapes tectorial membrane/organ of Corti tympanic membrane Ear Divisions (for each structure, Identity whether it is part of the external ear, middle ear, or inner ear) 1. auricle 2. bony labyrinth 3. cochlea 4. exteral auditory meatus 5. incus 6. malleus 7. membranous labyrinth 8. organ of Corti 9. saccule 10. semicircular canal 11. stapes 12. tympanic membrane 13. utricle 14. vestibule