Neck Anatomy
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Questions and Answers

Which layer of fascia surrounds the thyroid gland and the trachea?

  • Pretracheal fascia (correct)
  • Investing fascia
  • Prevertebral fascia
  • Carotid sheath
  • What is the primary function of the investing layer of fascia in the neck?

  • Supports the thyroid gland
  • Encloses the carotid arteries
  • Acts as a roof to the anterior triangle (correct)
  • Facilitates movement of the scalene muscles
  • Which structure is NOT surrounded by the pretracheal fascia?

  • Esophagus
  • Platysma (correct)
  • Thyroid gland
  • Trachea
  • Which of the following muscles is NOT associated with the prevertebral fascia?

    <p>Sternocleidomastoid (A)</p> Signup and view all the answers

    What is the role of the Ansa Cervicalis?

    <p>Innervates the strap muscles (B)</p> Signup and view all the answers

    Which area in the neck is primarily formed by the prevertebral fascia?

    <p>Posterior triangle (D)</p> Signup and view all the answers

    The carotid sheath encases which of the following structures?

    <p>Common carotid artery and internal jugular vein (D)</p> Signup and view all the answers

    What does the deep cervical fascia primarily encompass?

    <p>Specific muscles like trapezius and SCM (A)</p> Signup and view all the answers

    Which structures are encompassed by the carotid sheath?

    <p>Internal carotid artery, internal jugular vein, vagus nerve (B), Common carotid artery, internal jugular vein, vagus nerve (D)</p> Signup and view all the answers

    What defines the posterior border of the anterior triangle of the neck?

    <p>Posterior border of the sternocleidomastoid (SCM) (C)</p> Signup and view all the answers

    Which muscle is NOT classified as a strap (infrahyoid) muscle?

    <p>Sternocleidomastoid (D)</p> Signup and view all the answers

    What nerve is primarily responsible for motor control to the diaphragm?

    <p>Phrenic nerve (B)</p> Signup and view all the answers

    Which nerve innervates the geniohyoid muscle?

    <p>C1 via CN XII (D)</p> Signup and view all the answers

    Which of the following is found in the contents of the carotid triangle?

    <p>Common carotid artery (D)</p> Signup and view all the answers

    What forms the roof of the posterior triangle?

    <p>Platysma and fascia (A)</p> Signup and view all the answers

    Which muscle is primarily responsible for depressing the mandible while also elevating the hyoid?

    <p>Geniohyoid (B)</p> Signup and view all the answers

    What is NOT a major branch off the external carotid artery?

    <p>Inferior thyroid artery (C)</p> Signup and view all the answers

    Which nerve is part of the cervical plexus and serves the skin of the neck?

    <p>Transverse cervical nerve (D)</p> Signup and view all the answers

    Which of the following structures is innervated by the ansa cervicalis?

    <p>Sternohyoid muscle (D)</p> Signup and view all the answers

    What is the superior border of the anterior triangle of the neck?

    <p>Inferior border of the mandible (D)</p> Signup and view all the answers

    Which of the following best describes the attachment or action of the sternothyroid muscle?

    <p>Depresses the thyroid cartilage (B)</p> Signup and view all the answers

    Which cervical ventral rami primarily provide sensory innervation to the sternocleidomastoid muscle?

    <p>C3 and C4 (B)</p> Signup and view all the answers

    What is the innervation of the thyrohyoid muscle?

    <p>C1 via CN XII (A)</p> Signup and view all the answers

    Which muscle acts to depress the hyoid bone and is innervated by ansa cervicalis?

    <p>Omohyoid (D)</p> Signup and view all the answers

    What is the primary action of the scaleni muscles during the reverse action?

    <p>Elevating the first and second ribs (D)</p> Signup and view all the answers

    Which of the following is NOT an action of the sternocleidomastoid muscle?

    <p>Elevating the scapula (D)</p> Signup and view all the answers

    Which muscle is primarily responsible for elevating the scapula?

    <p>Levator scapulae (B)</p> Signup and view all the answers

    Which nerve is responsible for the motor innervation of the digastric muscle's anterior belly?

    <p>CN V (D)</p> Signup and view all the answers

    Which cervical ventral rami are involved in the innervation of the scaleni musculature?

    <p>C3 to C8 (C)</p> Signup and view all the answers

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