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where are hair cells also found (excluding cochlea)
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- ________ are found only in skin, and detect skin deflection. Meissner’s corpuscles; hairy Merkel’s disks; glabrous hair receptors; hairy Krause end bulbs; hairyStructure 5 contains the _________. hair cells that detect angular acceleration of the head hair cells that detect linear acceleration of the head macula and utricle basilar membrane and hair cells that detect soundWhether a hair cell depolarizes or hyperpolarizes depends on whether it bends towards or away from Statocysts Otolith Kinocilium Ampullae Next
- Vestibular hair cells :-a- are provided with cilia allover their surfaceb- are innervated by cochlear nerve fibersc- are stimulated by a chemical transmitter released from the terminals of the innervating nerve fibersd- are sensitive to mechanical stimuliPlease ASAP. Thanku Sensory transduction in the hair cell is mediated by ____________Which of the following is INCORRECT with respect to the location of hair cells? Question 38 options: Cupulae are located within the ampulla of a semicircular canal Hair cells are located in the vestibular complex and within the cochlear duct Wherever hair cells are located, that space is also filled with endolymph All of the above are correct
- Occupational Hearing Loss Frequent exposure to loud noise of a particular pitch can cause loss of hair cells in the part of the cochlea that responds to that pitch. People who work with or around noisy machinery are at risk for such frequency-specific hearing loss. Taking precautions such as using ear plugs to reduce sound exposure is important. Noise-induced hearing loss can be prevented, but once it occurs it is irreversible because dead or damaged hair cells are not replaced. FIGURE 33.24 shows the threshold decibel levels at which sounds of different frequencies can be detected by an average 25-year-old carpenter, a 50-year-old carpenter, and a 50-year-old who has not been exposed to on-the-job noise. Sound frequencies are given in hertz (cycles per second). The more cycles per second, the higher the pitch. FIGURE 33.24 Effects of age aria occupational noise exposure. The graph shows the threshold hearing capacities fin decibels) for sounds of different frequencies (given in hertz) in a 25-year-okj carpenter (blue), a 50-year-old carpenter (red), and a 50-year-otd who did not have any on-the-job noise exposure (brown). 3. Which of the three people had the best hearing in the range of 4,000 to 6,000 hertz? Which had the worst?Occupational Hearing Loss Frequent exposure to loud noise of a particular pitch can cause loss of hair cells in the part of the cochlea that responds to that pitch. People who work with or around noisy machinery are at risk for such frequency-specific hearing loss. Taking precautions such as using ear plugs to reduce sound exposure is important. Noise-induced hearing loss can be prevented, but once it occurs it is irreversible because dead or damaged hair cells are not replaced. FIGURE 33.24 shows the threshold decibel levels at which sounds of different frequencies can be detected by an average 25-year-old carpenter, a 50-year-old carpenter, and a 50-year-old who has not been exposed to on-the-job noise. Sound frequencies are given in hertz (cycles per second). The more cycles per second, the higher the pitch. FIGURE 33.24 Effects of age aria occupational noise exposure. The graph shows the threshold hearing capacities fin decibels) for sounds of different frequencies (given in hertz) in a 25-year-okj carpenter (blue), a 50-year-old carpenter (red), and a 50-year-otd who did not have any on-the-job noise exposure (brown). 2. How loud did a 1,000-hertz sound have to be for the 50-year-old carpenter to detect it?Occupational Hearing Loss Frequent exposure to loud noise of a particular pitch can cause loss of hair cells in the part of the cochlea that responds to that pitch. People who work with or around noisy machinery are at risk for such frequency-specific hearing loss. Taking precautions such as using ear plugs to reduce sound exposure is important. Noise-induced hearing loss can be prevented, but once it occurs it is irreversible because dead or damaged hair cells are not replaced. FIGURE 33.24 shows the threshold decibel levels at which sounds of different frequencies can be detected by an average 25-year-old carpenter, a 50-year-old carpenter, and a 50-year-old who has not been exposed to on-the-job noise. Sound frequencies are given in hertz (cycles per second). The more cycles per second, the higher the pitch. FIGURE 33.24 Effects of age aria occupational noise exposure. The graph shows the threshold hearing capacities fin decibels) for sounds of different frequencies (given in hertz) in a 25-year-okj carpenter (blue), a 50-year-old carpenter (red), and a 50-year-otd who did not have any on-the-job noise exposure (brown). 4. Based on these data, would you conclude that the hearing decline in the 50-year-old carpenter was caused by age or by job-related noise exposure?
- If you were to burn your epidermis, what receptor type would you most likely burn? free nerve endings Ruffini endings Pacinian corpuscle hair receptorsExplain how movements of the basilar membrane at different sound frequencies (pitches) affect hair cells.The function of structure 4, the round window, is to _________. bulge outward to give the fluid of the inner ear somewhere to go when the stapes pushes inward transmit sound from the ear ossicles of the middle ear to the hair cells of the inner ear amplify the sound wave as it is transmitted from the typanic membrane to the ear ossicles prevent fluid in the middle ear from entering the inner ear while allowing sound transmission
