Concerning attenuation reflex in ear which of the following is correct a. Protect cochlea from excessive...

Concerning attenuation reflex in ear which of the following is correct

a. Protect cochlea from excessive load sound

b. Mask low frequency sounds

c. Decrease hearing of own sound

d. All the above.

Solutions

Expert Solution

Answer: (d)-All of the above is correct.

Explanation-

The acoustic reflex (also known as the stapedius reflex, stapedial reflex, auditory reflex, middle-ear-muscle reflex (MEM reflex, MEMR), attenuation reflex, cochleostapedial reflex or intra-aural reflex) is an involuntary muscle contraction that occurs in the middle ear in response to loud sound stimuli or when the person starts to vocalize.

When presented with an intense sound stimulus, the stapedius and tensor tympani muscles of the ossicles contract.The stapedius stiffens the ossicular chain by pulling the stapes (stirrup) of the middle ear away from the oval window of the cochlea and the tensor tympani muscle stiffens the ossicular chain by loading the tympanic membrane when it pulls the malleus (hammer) in toward the middle ear. The reflex decreases the transmission of vibrational energy to the cochlea, where it is converted into electrical impulses to be processed by the brain.

The protection of the organ of Corti, provided by the acoustic reflex against excessive stimulation (especially that of the lower frequencies) has been demonstrated both in humans and animals. But this protection effect is limited.

Sydney Mullin answered 1 year ago

Next > < Previous

Related Solutions

Describe the pathway of sound from the ear to the cochlea. Describe two types of deafness...

Describe the pathway of sound from the ear to the cochlea. Describe two types of deafness that can occur and how are they treated. How do we localize the source of a sound?

1)Define or illustrate the following: anatomy of the ear including external-middle-and-internal ear, detail of cochlea anatomy,...

1)Define or illustrate the following: anatomy of the ear including external-middle-and-internal ear, detail of cochlea anatomy, myopia, hyperopia, astigmatism, primary auditory cortex, myoglobin, paranasal sinus, atlas, axis,

Which of the following is NOT correct concerning the cash budget?

Which of the following is NOT correct concerning the cash budget? Multiple Choice It is not necessary to prepare any other budgets before preparing the cash budget. The cash budget should be prepared before the budgeted income statement. The cash budget should be prepared before the budgeted balance sheet. The cash budget builds on earlier budgets and schedules as well as additional data. o

34. The myogenic reflex differs from a short reflex in which of the following ways? a....

34. The myogenic reflex differs from a short reflex in which of the following ways? a. The myogenic reflex is initiated by a stretch reflex b. The myogenic reflex only involves one cell type c. The myogenic reflex results in smooth muscle concentration 35. Which of the following is the most potent inhibitor of gastric acid secretion? a. Somatostain b. Gastrin c. Acetylcholine 36. how do bile salts differ from lipases in digestion? a. Bile salts help with fast digestion...

Which of the following statements is correct concerning a SIMPLE plan?

1 Which of the following statements is correct concerning a SIMPLE plan?A SIMPLE plan has more complex administration than a 401(k).A SIMPLE plan has only a few options for employer matching percentages, while a 401(k) has no limit to the matching percentage.A SIMPLE is best used with a large to medium sized company.Both SIMPLE plans and 401(k)s permit plan loans.2 An employer can sponsor both a SIMPLE and a money-purchase pension plan.TrueFalse

Which one of the following statements is correct concerning these loans?

First Bank offers personal loans at 7.6 percent compounded monthly. Second Bank offers similar loans at 7.75 percent compounded semi-annually. Which one of the following statements is correct concerning these loans?Group of answer choicesThe First Bank loan has an effective rate of 7.67 percent.The Second Bank loan has an effective rate of 8.03 percent.The annual percentage rate for the Second Bank loans is 7.90 percent.Borrowers should prefer the loans offered by Second Bank.The First Bank offers the best deal on...

Which of the following statements is NOT correct concerning the Cash Budget?

Which of the following statements is NOT correct concerning the Cash Budget? A) The Cash Budget builds on earlier budgets and schedules as well as additional data. B) The Cash Budget should be prepared before the Budgeted Income Statement. C) The Cash Budget should be prepared before the Budgeted Balance Sheet. D) It is not necessary to prepare any other budgets before preparing the Cash Budget

7. Which the following statements concerning disability insurance is correct? a. Benefits from a disability income...

7. Which the following statements concerning disability insurance is correct? a. Benefits from a disability income insurance policy are a function of the insured's health, gender, age, and the level of income of the insured. B. To qualify for disability income, one must become totally disabled while the policy is in force elimination (exclusion) period has ended. C.A policy that integrates with Social Security will increase payable benefits by the amount of Social Security the disabled person is eligible to...

Which of the following statements concerning typeps of reactions is correct? A. The reactant in a...

Which of the following statements concerning typeps of reactions is correct? A. The reactant in a decomposition reaction must be a compound B. The reactants in a combination reaction must be elements C. the reactants in a double replacement reaction may either be compounds or elements D. More than one above is correct

Which one of the following statements is correct concerning the standard deviation of a portfolio? A....

Which one of the following statements is correct concerning the standard deviation of a portfolio? A. The greater the diversification of a portfolio, the greater the standard deviation of that portfolio. b. The standard deviation of a portfolio can often be lowered by changing the weights of the securities in the portfolio? c. Standard deviation is used to determine the amount of risk premium that should apply to a portfolio. d. Standard deviation measures only the systematic risk of a...

Subjects