Ch 13 PNS, Part III (Hearing)
... • It might look like the work of a mad scientist but the Vacanti mouse with what appears to be a human ear growing on its back is the real deal. You won't find this mouse at the circus; it was created at the University of Massachusetts in 1997. Dr. Charles Vacanti developed the mouse by putting a mo ...
... • It might look like the work of a mad scientist but the Vacanti mouse with what appears to be a human ear growing on its back is the real deal. You won't find this mouse at the circus; it was created at the University of Massachusetts in 1997. Dr. Charles Vacanti developed the mouse by putting a mo ...
Pure Tone Audiometry
... never be sure which cochlea is being stimulated! (more on this to come) • Frequencies usually tested: – 250, 500, 1000, 2000, and 4000 Hz ...
... never be sure which cochlea is being stimulated! (more on this to come) • Frequencies usually tested: – 250, 500, 1000, 2000, and 4000 Hz ...
File
... temporary or permanent, depending on the intensity and duration of the exposure. Although a person’s hearing may recover from temporary, slight damage to the hair cells, the complete loss of hair cells is irreversible in humans. ...
... temporary or permanent, depending on the intensity and duration of the exposure. Although a person’s hearing may recover from temporary, slight damage to the hair cells, the complete loss of hair cells is irreversible in humans. ...
Normally if an audiologist can see a hearing loss shift between
... incidence of occupational noise exposure they will render an opinion. If there is a Whisper Test, they should do an opinion because the Whisper Test is not scientifically based. They should state that these are the most cutting edge studies that look at hearing loss by leading researchers. The VA is ...
... incidence of occupational noise exposure they will render an opinion. If there is a Whisper Test, they should do an opinion because the Whisper Test is not scientifically based. They should state that these are the most cutting edge studies that look at hearing loss by leading researchers. The VA is ...
not
... ABR is of value in diagnosis of -------------------- Low frequency SNHL occurs in -------------------- Meniere’s disease with mild SNHL is never treated by; (Medical ttt. ---- Succus decompression – vestibular neurectomy – labyrinthectomy) Rinne negative = CHL not occurs in (Otosclerosis – OME ...
... ABR is of value in diagnosis of -------------------- Low frequency SNHL occurs in -------------------- Meniere’s disease with mild SNHL is never treated by; (Medical ttt. ---- Succus decompression – vestibular neurectomy – labyrinthectomy) Rinne negative = CHL not occurs in (Otosclerosis – OME ...
ENT
... a. The golden is: CT Scan (subtle thickening, differentiate infections from tumors). b. Nasal smears: to differentiate allergic from bacterial, we can’t do that by the number of eosinophils, but by the number of neutrophils and bacteria (high in bacterial). c. Sinus culture: invasive, DO NOT use it ...
... a. The golden is: CT Scan (subtle thickening, differentiate infections from tumors). b. Nasal smears: to differentiate allergic from bacterial, we can’t do that by the number of eosinophils, but by the number of neutrophils and bacteria (high in bacterial). c. Sinus culture: invasive, DO NOT use it ...
The Ear
... The takeoff or landing of an airplane, the acceleration of an elevator, deep-sea diving, or driving up a steep hill in a car all bring about changes in air pressure which may be experienced as discomfort in the ears. This feeling is the result of increased pressure being exerted on the eardrum, whic ...
... The takeoff or landing of an airplane, the acceleration of an elevator, deep-sea diving, or driving up a steep hill in a car all bring about changes in air pressure which may be experienced as discomfort in the ears. This feeling is the result of increased pressure being exerted on the eardrum, whic ...
File
... The middle ear has the __________________ bones in the body: the __________________, anvil and _______________. Their job is to __________________ the vibrations of the eardrum and transmits it into the __________________ear. The stirrup “__________________” on the inner ear at a spot called t ...
... The middle ear has the __________________ bones in the body: the __________________, anvil and _______________. Their job is to __________________ the vibrations of the eardrum and transmits it into the __________________ear. The stirrup “__________________” on the inner ear at a spot called t ...
noise - Dr Muhammad Razaq Malik
... • Noise has two important properties: Loudness Loudness depends upon the amplitude of the vibrations which initiated the noise. The loudness of noise is measured in decibels (dB). • Frequency: The frequency is denoted as Hertz (Hz.) One Hz is equal to one wave per second. The human ear can hear freq ...
... • Noise has two important properties: Loudness Loudness depends upon the amplitude of the vibrations which initiated the noise. The loudness of noise is measured in decibels (dB). • Frequency: The frequency is denoted as Hertz (Hz.) One Hz is equal to one wave per second. The human ear can hear freq ...
Chapter 13 Physics of the Ear and Hearing
... Ÿ Impedance matching between the eardrum and the liquid-filled chamber of the inner ear Ÿ Malleus (hammer), incus (anvil), stapes (stirrup) Ÿ Force amplification by a factor of about 20 (Fig. 13.4) ù Lever action amplifies the force by a factor of about 1.3 between M and S ù Piston action amplifies ...
... Ÿ Impedance matching between the eardrum and the liquid-filled chamber of the inner ear Ÿ Malleus (hammer), incus (anvil), stapes (stirrup) Ÿ Force amplification by a factor of about 20 (Fig. 13.4) ù Lever action amplifies the force by a factor of about 1.3 between M and S ù Piston action amplifies ...
Scoring Guide
... Read the left had side the page and make sure you do the loudness test. Be sure the volume on your computer is set at a normal range. Turn it down if it is uncomfortable or stop. What is the frequency range of your hearing? Answers will vary but should be between 20 and 20,000 Hz. o. Once hearing is ...
... Read the left had side the page and make sure you do the loudness test. Be sure the volume on your computer is set at a normal range. Turn it down if it is uncomfortable or stop. What is the frequency range of your hearing? Answers will vary but should be between 20 and 20,000 Hz. o. Once hearing is ...
Chapter 8 The Special Senses Sensory receptors – dendrites
... Exteroceptors detect stimuli from outside the body (e.g. taste, hearing, vision) Interoceptors receive stimuli from inside the body (e.g. change in blood pressure) Types of sensory receptors Chemoreceptors – respond to the binding of certain chemicals (smell and taste) Photoreceptors – respo ...
... Exteroceptors detect stimuli from outside the body (e.g. taste, hearing, vision) Interoceptors receive stimuli from inside the body (e.g. change in blood pressure) Types of sensory receptors Chemoreceptors – respond to the binding of certain chemicals (smell and taste) Photoreceptors – respo ...
NOISE-POLLUTION
... and soil pollution but it is very less often we have heard about noise pollution. We may define noise as any unwanted sudden or high intensity sound which one has to hear without his consent. Some common sources of this noise pollution are road traffic, industries, railway and air traffic and use of ...
... and soil pollution but it is very less often we have heard about noise pollution. We may define noise as any unwanted sudden or high intensity sound which one has to hear without his consent. Some common sources of this noise pollution are road traffic, industries, railway and air traffic and use of ...
Earplug
An earplug is a device that is meant to be inserted in the ear canal to protect the user's ears from loud noises or the intrusion of water, foreign bodies, dust or excessive wind.