Describe the difference between conductive hearing loss and sensorineural hearing loss.
Conductive hearing loss:
Sensorineural hearing loss:
Conductive hearing loss:
• Result of disease or malformation of the outer or middle ear
• All sound is weaker and muffled because it is not conducted correctly to the inner ear
Sensorineural hearing loss:
• Result of damage or malformation of the inner ear (cochlea) or the cochlear nerve
• Some sounds are distorted and heard incorrectly
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What property of the voltage-gated potassium channels allows K+ ions to pass? Choose the correct option
A) Two polypeptide subunits are synthesized when the membrane is depolarized, allowing the K+ ions to pass. B) Depolarization causes the subunits to disintegrate so K+ ions can pass through the membrane. C) The voltage-gated potassium channels open when the polypeptide sub-units are disinhibited. D) Depolarization causes the four polypeptide subunits specific to the voltage-gated K+ channel to twist into a shape that allows the K+ ions to pass.
Using medical terminology rules, what is the most exact term for a surgical incision into the chest wall?
A) open heart surgery B) tracheostomy C) pneumonectomy D) thoracotomy
The strongest health benefits of the natural and visual environments are in the area of
A. nutrition. B. cardio-respiratory fitness. C. disease resistance. D. stress relief and quality of life.
What occurs in the body of a patient with an autoimmune disease?
A. There is immunity to a variety of different pathological organisms. B. There is fluid lying between the tissue spaces. C. There is destruction of their own cells by the immune system.