Identify Arrow Point Of MRI!

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| By Breanna
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Quizzes Created: 26 | Total Attempts: 8,263
Questions: 15 | Attempts: 502

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Identify Arrow Point Of MRI! - Quiz

Questions and Answers
  • 1. 

    Questions 31 through 35 refer to the figure below of a midsagittal, T2-weighted MRI of pharyngeal divisions.Which arrow points to the cricoid cartilage?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    • E.

      E

    Correct Answer
    C. C
    Explanation
    The arrow pointing to C indicates the cricoid cartilage. The cricoid cartilage is a ring-shaped structure located inferior to the thyroid cartilage in the neck. It is the only complete ring of cartilage in the upper airway and serves as a landmark for various structures in the neck. In the given MRI image, the arrow pointing to C is correctly identifying the cricoid cartilage.

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  • 2. 

    Questions 6 through 8 refer to the figure below of an axial CT of the thoracic vertebra.Which arrow points to the pedicle?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    Correct Answer
    D. D
    Explanation
    The arrow pointing to D indicates the pedicle. In axial CT images of the thoracic vertebra, the pedicle is a bony structure that connects the vertebral body to the posterior elements, such as the lamina and transverse processes. It can be identified as a rounded or oval-shaped structure located on either side of the vertebral body. In this case, arrow D points to the pedicle, accurately identifying its location in the image.

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  • 3. 

    Questions 31 through 35 refer to the figure below of a midsagittal, T2-weighted MRI of pharyngeal divisions.Which arrow points to the oropharynx?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    • E.

      E

    Correct Answer
    B. B
    Explanation
    The arrow pointing to B indicates the oropharynx. The oropharynx is the middle portion of the pharynx, located behind the oral cavity and extending to the epiglottis. In the given MRI image, the arrow pointing to B is in line with the position of the oropharynx, making it the correct answer.

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  • 4. 

    Questions 31 through 35 refer to the figure below of a midsagittal, T2-weighted MRI of pharyngeal divisions.Which arrow points to the laryngopharynx?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    • E.

      E

    Correct Answer
    E. E
    Explanation
    Arrow E points to the laryngopharynx. The laryngopharynx is the lowest part of the pharynx and is located behind the larynx (voice box) and above the esophagus. In the given figure, arrow E is pointing to the region that corresponds to the laryngopharynx, indicating that it is the correct answer.

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  • 5. 

    Questions 31 through 35 refer to the figure below of a midsagittal, T2-weighted MRI of pharyngeal divisions.Which arrow points to the esophagus?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    • E.

      E

    Correct Answer
    C. C
    Explanation
    Arrow C points to the esophagus. In the given figure of a midsagittal, T2-weighted MRI of pharyngeal divisions, the esophagus is the tube-like structure that connects the pharynx to the stomach. Arrow C is pointing towards this structure, indicating that it represents the esophagus.

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  • 6. 

    Questions 27 through 30 refer to the figure below of an axial CT of the neck.Which arrow points to the SCM?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    Correct Answer
    B. B
    Explanation
    The arrow pointing to B indicates the SCM (sternocleidomastoid) muscle in the axial CT of the neck. The SCM is a large muscle located on both sides of the neck, running from the sternum and clavicle to the mastoid process of the skull. It is responsible for various movements of the head and neck, including rotation and flexion.

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  • 7. 

    Questions 44 through 48 refer to the figure below of a coronal CT reformat of the neck.Which arrow points to the sternocleidomastoid musucle (SCM)?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    • E.

      E

    Correct Answer
    A. A
    Explanation
    The correct answer is A. The sternocleidomastoid muscle (SCM) is a large muscle that runs diagonally across the neck. It originates from the sternum and clavicle and inserts on the mastoid process of the temporal bone. It helps to rotate and flex the head and neck. In the given figure, arrow A points to a structure that matches the description of the SCM muscle, making it the correct answer.

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  • 8. 

    Questions 53 through 56 refer to the figure below of an axial CT of the inner ear.Which arrow points to the carotid canal?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    Correct Answer
    D. D
    Explanation
    The carotid canal is a bony canal in the skull that houses the carotid artery. In the given figure, arrow D is pointing towards a canal-like structure, which is likely to be the carotid canal. The other arrows (A, B, and C) are not pointing towards any canal-like structure in the inner ear.

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  • 9. 

    Questions 40 through 43 refer to the figure below of a coronal, T1-weighted MRI of the piriform sinuses.Which arrow points to the aryepiglottic fold?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    Correct Answer
    B. B
    Explanation
    The correct answer is B. The arrow pointing to B indicates the aryepiglottic fold. The aryepiglottic fold is a fold of mucous membrane that extends from the arytenoid cartilage to the epiglottis. It helps to protect the airway during swallowing by closing off the laryngeal inlet.

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  • 10. 

    The oropharynx extends between which two structures?

    • A.

      Soft palate and hyoid bone

    • B.

      Hard palate and hyoid bone

    • C.

      Soft palate and cricoid bone

    • D.

      Hard palate and cricoid cartilage

    Correct Answer
    A. Soft palate and hyoid bone
    Explanation
    The oropharynx is a part of the throat that extends between the soft palate and the hyoid bone. The soft palate is the soft tissue at the back of the roof of the mouth, while the hyoid bone is a U-shaped bone located in the neck. These two structures mark the boundaries of the oropharynx.

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  • 11. 

    Questions 40 through 43 refer to the figure below of a coronal CT reformat of the thoracic spine, post myelogram.Which arrow points to the thoracic pedicle?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    Correct Answer
    B. B
    Explanation
    The thoracic pedicle is a bony structure located on the posterior aspect of each vertebra in the thoracic spine. In the given figure, arrow B points to a structure that appears to be a bony prominence on the posterior aspect of a vertebra, which is consistent with the location of the thoracic pedicle. Therefore, arrow B is the correct answer.

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  • 12. 

    Questions 23 through 26 refer to the figure below of an axial CT of the neck.Which arrow points to the aryepiglottic fold?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    Correct Answer
    B. B
    Explanation
    The arrow pointing to B is the correct answer because the aryepiglottic fold is a fold of mucous membrane that extends from the arytenoid cartilage to the epiglottis. In the given figure, arrow B is pointing to a structure that matches the description of the aryepiglottic fold.

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  • 13. 

    Questions 36 through 39 refer to the figure below of a sagittal CT reformat of the pharynx.Which arrow point to the soft palate?

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    Correct Answer
    B. B
    Explanation
    The correct answer is B because it is the only arrow that is pointing to the soft palate. The soft palate is a muscular structure located at the back of the roof of the mouth, and it helps to close off the nasal cavity during swallowing and speech. The other arrows are pointing to different structures in the pharynx, such as the uvula (A), the epiglottis (C), and the base of the tongue (D).

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  • 14. 

    The cerebral hemispheres contain neural tissue arranged in numerous folds called:

    • A.

      Gyri

    • B.

      Sulci

    • C.

      Fisssures

    • D.

      Lobes

    Correct Answer
    A. Gyri
    Explanation
    The cerebral hemispheres contain neural tissue arranged in numerous folds called gyri. Gyri are the raised ridges on the surface of the brain that increase its surface area, allowing for more neural connections and higher cognitive functions. These folds play a crucial role in increasing the brain's processing power and efficiency by providing more space for neurons and their connections.

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  • 15. 

    Which is a superficial muscle located on the posterior portion of the neck, that acts to elevate the scapula?

    • A.

      Splenius capitis

    • B.

      Rhomboid major

    • C.

      Posterior scalene

    • D.

      Trapezius

    Correct Answer
    D. Trapezius
    Explanation
    The trapezius muscle is a superficial muscle located on the posterior portion of the neck. It acts to elevate the scapula, which is the correct action described in the question. The other options, splenius capitis, rhomboid major, and posterior scalene, do not have the primary function of elevating the scapula.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 21, 2015
    Quiz Created by
    Breanna
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