Some everyday situations where are hearing is important are at work‚ at social occasions‚ learning‚ and for our own safety. Our ears are intricate pieces of work and there is a lot to the anatomy and physiology of how the ear. The visible or external part of the ear has more of an action like funnel‚ amplifying sound waves to be captured and easily directed in the ear canal. The Pinna has an interesting role allowing the canal to receive low sound frequencies by reflecting off of the Pinna. The
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HEARING LOSS BY: NURRASHIDAH BT ABDURAHMAN NABILAH IFFAH BT MD. ARIF ANATOMY OF EAR The ear is made up of three parts 1. Outer ear – consists of pinna and external auditory canal 2. middle ear – consists of tympanic membrane and ossicles (3 tiny bones that are attached to the tympanic membrane which are malleus‚ incus and stapes) 3. inner ear – consists of oval window‚ semicircular ducts‚ cochlea and auditory tube HEARING – transduction of sound to neural impulses and its interpretation
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and thus the two are not interchangeable. Research into how the auditory system is able to encode frequency information entering the ear suggests possible mechanisms taking place on the basilar membrane of the inner ear. Interestingly‚ studies also show how the brain is able to perceive a pitch when its corresponding frequency is not present in the sound entering the ear. This phenomenon is called the ‘missing fundamental’‚ as mentioned in the quote from Stainsby. The ‘missing fundamental’ has lead
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Name: Stephanie Frost Section: Bio 201 Lab Report: Reflex and Special Senses Please fill out this report and submit it to the dropbox. Do not hand in your own form. It will not be graded and you will receive a zero for the lab. You must get all parts correct to get credit for the question * Please note that although you do not hand in items in observations
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which will be referred to as the auditory nerve for simplicity‚ consists of the cochlear and vestibular divisions. These two divisions‚ running from the inner ear to the brain‚ are responsible for transmitting information about hearing and maintaining balance‚ respectively. When the Schwann cells (used to keep peripheral nerve fibers alive) that surround the vestibular division grow at an abnormal rate inside if the ear canal‚ you’ve got yourself a case of acoustic neuroma. The resulting tumor from the uncontrolled growth of cells is benign
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monitor your child while he/she is using headphones and do not allow them to use headphones for more than an hour without a break. 5. Use specialised headphones The first line of defence in ensuring that your child’s ears are protected is choosing the right head phone for their young ears. There are varieties in the market that have lower than usual maximum volume and will perfectly fit your child. 6. Introduce pre-set limit We know children tent to temper with the set limits of volumes. To be safe
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can dig into the wears head and become uncomfortable over extended periods of time. The problem the Improved Hearing Protection is the technology is not there yet to condense the microphones‚ speaker‚ and the Bluetooth materials into a small inner ear device. Another flaw is the rechargeable batteries and how long they could last on a single charge. Since most workers normally work 9 hours a day‚ the rechargeable batteries would need to be able to do the same. Again‚ the developer is limited by
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MENIERE’S DISEASE - an abnormal inner ear fluid balance caused by a malabsorption in the endolyphatic sac or blockage in the endolyphatic duct. - chronic disease caused by an increase in endolymphatic pressure High in males (40-60 years old) Unknown Etiology Clinical Manifestations: * fluctuating‚ progressive sensorineural hearing loss * tinnitus or a roaring sound * feeling of pressure or fullness in the ear * episodic‚ incapaciating vertigo (severe dizziness)
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vibration‚ and movement perceived as touch‚ hearing and equilibrium. C.3. Chemoreception * Detection of chemical detected as smell and taste. D. The receptors in the human body are the five sense organs. E. Distal senses – the eyes and the ears‚ are sensitive to external stimuli from a distance in the outside environment. Terms to remember: 1. Psychophysics * The study of relationship between the physical aspects of stimuli and our psychological experience of them. 2. Transduction
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Does wind power have a negative impact on human health? By Kim Chau Contents page Wind power‚ how it works and how it’s used 1 Sound and the human ear 2‚ 3 Wind power‚ how it works and how it’s used Wind is the movement of air caused by difference in atmospheric pressures. Wind comes to many different uses along with many benefits; one of its greatest benefits is that it’s a renewable source of energy unlike materials such as coal and oil. The use of wind for energy also does not have
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