What are the Middle Ear Ligaments?

Annular Ligaments and Axial Ligaments

What are the functions of the MIddle Ear?

Impedance Matching, Pressure Equalization, Protection

Hearing Science Quiz Unit Two

1.

The study of the body structure is what?
- A.
  
  Transducer
- B.
  
  Anatomy
- C.
  
  Physiology
- D.
  
  Transduction
Correct Answer
B. Anatomy

Explanation
Anatomy is the study of the body structure, including the organs, tissues, and systems. It focuses on the physical structure and organization of the body, such as the bones, muscles, and organs. This field of study helps in understanding how different parts of the body are connected and how they function together. By studying anatomy, scientists and medical professionals gain valuable knowledge about the human body, which is essential for diagnosing and treating diseases, as well as for advancements in medical research and technology.

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0
1
2.

What plan is a right angle to the sagittal plane; division into a front and back portions?
- A.
  
  Transverse Plane
- B.
  
  Sagittal Plane
- C.
  
  Coronal Plane
Correct Answer
C. Coronal Plane

Explanation
The coronal plane is the correct answer because it is the plane that divides the body into front and back portions, perpendicular to the sagittal plane. The sagittal plane divides the body into left and right portions, while the transverse plane divides it into upper and lower portions.

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3.

What are the two sections of the Tympanic Membrane?

Correct Answer
Pars Flaccida and Pars Tensa

Explanation
The Tympanic Membrane, also known as the eardrum, is divided into two sections: Pars Flaccida and Pars Tensa. The Pars Flaccida is the upper portion of the eardrum, which is thinner and more flexible. The Pars Tensa, on the other hand, is the lower portion of the eardrum, which is thicker and stiffer. These two sections play a crucial role in transmitting sound vibrations from the outer ear to the middle ear.

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4.

These are the smallest bones is the body and form the ossicular chain....
- A.
  
  Umbo
- B.
  
  Annulus
- C.
  
  Ossicles
- D.
  
  Malleolar Folds
Correct Answer
C. Ossicles

Explanation
The correct answer is "Ossicles." The question is asking for the smallest bones in the body, which are known as ossicles. Ossicles are found in the middle ear and consist of three small bones: the malleus, incus, and stapes. These bones work together to transmit sound vibrations from the eardrum to the inner ear.

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5.

What are the Middle Ear Ligaments?

Correct Answer
Annular Ligaments and Axial Ligaments

Explanation
The middle ear ligaments refer to the annular ligaments and axial ligaments. The annular ligaments are found in the middle ear and surround the ossicles, specifically the stapes. They help to hold the ossicles in place and allow for their proper movement. The axial ligaments are also located in the middle ear and connect the ossicles to the surrounding structures, providing stability and support. Together, these ligaments play a crucial role in the functioning of the middle ear and the transmission of sound.

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6.

What are the Middle Ear Muscles?

Correct Answer
Tensor Tympani and Stapedius

Explanation
The middle ear muscles refer to the Tensor Tympani and Stapedius. These muscles play a crucial role in the auditory system. The Tensor Tympani muscle is connected to the eardrum and helps to dampen loud sounds by tensing the eardrum. The Stapedius muscle is attached to the stapes bone in the middle ear and helps to stabilize the stapes, which in turn controls the transmission of sound waves to the inner ear. Together, these muscles work to protect the delicate structures of the ear and regulate sound sensitivity.

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7.

What are the functions of the MIddle Ear?

Correct Answer
Impedance Matching, Pressure Equalization, Protection

Explanation
The middle ear has three main functions. First, it acts as an impedance matching mechanism, which means it enhances the transfer of sound vibrations from the outer ear to the inner ear. Second, it helps in pressure equalization, ensuring that the pressure on both sides of the eardrum remains balanced. Lastly, the middle ear provides protection to the delicate structures of the inner ear by dampening loud sounds and preventing damage.

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8.

What is the opening in the labyrinthine wall of the ME space, leading inot the scala vestibuli of the cochlea, into which the footplate of the stapes fits?
- A.
  
  Oval widow
- B.
  
  Round Window
- C.
  
  Middle Ear
- D.
  
  Basilar Membrane
Correct Answer
A. Oval widow

Explanation
The correct answer is Oval Window. The oval window is the opening in the labyrinthine wall of the middle ear space that leads into the scala vestibuli of the cochlea. It is through this opening that the footplate of the stapes, one of the three small bones in the middle ear, fits. The oval window plays a crucial role in transmitting sound vibrations from the middle ear to the inner ear.

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9.

The auditory nerve that does not fire is what?
- A.
  
  Hyperpolarization
- B.
  
  Depolarization
Correct Answer
A. Hyperpolarization

Hearing Science Quiz Unit Two

The study of the body structure is what?

What plan is a right angle to the sagittal plane; division into a front and back portions?

What are the two sections of the Tympanic Membrane?

These are the smallest bones is the body and form the ossicular chain....

What are the Middle Ear Ligaments?

What are the Middle Ear Muscles?

What are the functions of the MIddle Ear?

What is the opening in the labyrinthine wall of the ME space, leading inot the scala vestibuli of the cochlea, into which the footplate of the stapes fits?

The auditory nerve that does not fire is what?