Neck Anterior Posterior Triangle
29 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which structure is primarily responsible for elevating the hyoid and the floor of the mouth?

  • Geniohyoid muscle
  • Mandibular branch of trigeminal nerve (CN V3) (correct)
  • Sternothyroid muscle
  • Ansa cervicalis
  • Which cranial nerve is associated with the innervation of the geniohyoid muscle?

  • CN X
  • CN XII
  • C1 via CN XII (correct)
  • CN V
  • What is the primary function of the sternohyoid muscle?

  • Elevates the hyoid bone
  • Supports the floor of the mouth
  • Elevates the mandible
  • Depresses the hyoid bone (correct)
  • Which of the following is NOT a branch of the external carotid artery?

    <p>Internal carotid artery</p> Signup and view all the answers

    Which of the following nerves is part of the ansa cervicalis?

    <p>C1 and C2 spinal nerves</p> Signup and view all the answers

    Which nerve is NOT typically associated with the carotid sheath?

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

    Which cervical nerve primarily innervates the thyrohyoid muscle?

    <p>C1</p> Signup and view all the answers

    Which of the following statements about the anterior triangle borders is incorrect?

    <p>The superior border is formed by the inferior border of the clavicle.</p> Signup and view all the answers

    What is the primary action of the sternocleidomastoid muscle when both heads contract bilaterally?

    <p>Flex the neck</p> Signup and view all the answers

    Which muscles are classified under the strap (infrahyoid) muscles?

    <p>Sternohyoid and sternothyroid</p> Signup and view all the answers

    Which muscle is primarily responsible for elevating the first rib during inspiration?

    <p>Anterior scalene</p> Signup and view all the answers

    What structures are found in the digastric triangle?

    <p>Submandibular gland and facial artery</p> Signup and view all the answers

    What is the source of innervation for the infrahyoid muscles?

    <p>Ansa cervicalis</p> Signup and view all the answers

    Which of the following is NOT supplied by the cervical plexus?

    <p>Trapezius muscle</p> Signup and view all the answers

    Which artery is found in the posterior triangle?

    <p>Transverse cervical artery</p> Signup and view all the answers

    Which muscle originates from the posterior tubercles of the transverse processes of CV1-4?

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

    Which cervical nerve root contributes to sensory innervation of the sternocleidomastoid muscle?

    <p>C2</p> Signup and view all the answers

    What is the main function of the ansa cervicalis?

    <p>To innervate cervical muscles</p> Signup and view all the answers

    What action does the mylohyoid muscle contribute to during swallowing?

    <p>All of the above</p> Signup and view all the answers

    Which of the following is a superficial branch of the cervical plexus?

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

    What is the main action of the scaleni muscles?

    <p>Ipsilateral sidebending of cervical vertebrae</p> Signup and view all the answers

    What structure is surrounded by the pretracheal fascia in the neck?

    <p>Thyroid gland</p> Signup and view all the answers

    Which of the following muscles is NOT covered by the investing layer of fascia?

    <p>Scalene muscles</p> Signup and view all the answers

    Identify the muscle that helps form the floor of the posterior triangle of the neck.

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

    Which fascia layer acts as a roof to the anterior triangle of the neck?

    <p>Investing fascia</p> Signup and view all the answers

    Which structure is NOT part of the cervical plexus?

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

    Which general function do the strap muscles perform?

    <p>Stabilize and depress the hyoid bone</p> Signup and view all the answers

    What is the primary role of the carotid sheath in the neck?

    <p>Surround the carotid arteries and jugular veins</p> Signup and view all the answers

    Which structure is located deep to the trachea?

    <p>Esophagus</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Browser