Anterior triangle
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Questions and Answers

What is the action of the stylohyoid muscle?

  • Depresses the hyoid bone
  • Elevates the hyoid bone (correct)
  • Elevates the larynx
  • Depresses the larynx

    • The origin of the mylohyoid muscle is from the:

  • Styloid process
  • Mastoid process
  • Mylohyoid line of body of mandible (correct)
  • Inferior mental spine of mandible

    • Which nerve innervates the geniohyoid muscle?

  • Inferior alveolar nerve
  • Facial nerve
  • 1st cervical nerve (correct)
  • Nerve to mylohyoid

    • What is the action of the sternothyroid muscle?

    <p>Depresses larynx</p> Signup and view all the answers

    The right common carotid artery originates from the:

    <p>Brachiocephalic artery</p> Signup and view all the answers

    What does the carotid sinus contain?

    <p>Reflex pressoreceptor mechanism</p> Signup and view all the answers

    The carotid body is innervated by which nerve?

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

    What structures lie posterior to the common carotid artery?

    <p>Vertebral vessels and sympathetic trunk</p> Signup and view all the answers

    "The superficial temporal and maxillary arteries are branches of which artery?"

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

    "Which artery supplies the tongue?"

    <p>&quot;Lingual artery&quot;</p> Signup and view all the answers

    "The internal carotid artery begins at the bifurcation of which artery?"

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

    "What structures are anterolaterally related to the internal carotid artery?"

    <p>Hypoglossal nerve, fascia, and sternocleidomastoid muscle</p> Signup and view all the answers

    Which structure forms the floor of the submandibular (Digastric) triangle?

    <p>Mylohyoid and hyoglossus muscles</p> Signup and view all the answers

    What is the superior boundary of the muscular triangle?

    <p>Hyoid bone</p> Signup and view all the answers

    Which structure forms the floor of the carotid triangle?

    <p>Middle pharyngeal constrictor</p> Signup and view all the answers

    What is the inferior boundary of the submental triangle?

    <p>Hyoid bone</p> Signup and view all the answers

    Which structures are contained within the submandibular (Digastric) triangle?

    <p>Submandibular gland; submandibular lymph nodes; hypoglossal nerve [XII]; mylohyoid nerve; facial artery and vein</p> Signup and view all the answers

    What forms the lateral boundary of the carotid triangle?

    <p>Superior belly of the omohyoid muscle</p> Signup and view all the answers

    What forms the superior boundary of the submandibular (Digastric) triangle?

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

    Which artery supplies the thyroid gland and is a branch of the external carotid artery?

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

    Which nerve is usually connected to the hyoid bone by a fibrous or muscular band?

    <p>Recurrent laryngeal nerve</p> Signup and view all the answers

    Where do the inferior thyroid veins drain into?

    <p>Left brachiocephalic vein</p> Signup and view all the answers

    What is the function of the levator glandulae thyroideae if it is muscular?

    <p>Assists in swallowing</p> Signup and view all the answers

    Which structures are located anteriorly to the isthmus of the thyroid gland?

    <p>Sternothyroids and sternohyoids</p> Signup and view all the answers

    Where are the parathyroid glands located in relation to the thyroid gland?

    <p>Posterior border of the thyroid gland</p> Signup and view all the answers

    Which vessel does the inferior thyroid artery ascend behind on its way to supply the thyroid gland?

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

    What is often present and projects upward from the isthmus of the thyroid gland, usually to the left of the midline?

    <p>Pyramidal lobe</p> Signup and view all the answers

    How many superior parathyroid glands are there, and at what level are they located?

    <p>Two at the level of the middle of the thyroid gland</p> Signup and view all the answers

    What is NOT a relation of the lobes of the thyroid gland?

    <p>The brachiocephalic trunk or arch of aorta</p> Signup and view all the answers

    Which nerve emerges from the medulla oblongata and passes laterally through the posterior cranial fossa?

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

    What muscle does the pharyngeal branch of the vagus nerve supply?

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

    Which nerve supplies all the muscles of the tongue except the palatoglossus?

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

    Where is the common carotid artery located in relation to the internal jugular vein?

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

    What structure does the recurrent laryngeal nerve hook around on the right side?

    <p>Subclavian artery</p> Signup and view all the answers

    Which nerve has both superior and inferior sensory ganglia located on it?

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

    Where does the glossopharyngeal nerve descend through?

    <p>Upper part of the neck</p> Signup and view all the answers

    What is the function of the external laryngeal nerve?

    <p>Motor to the larynx</p> Signup and view all the answers

    Where does the internal jugular vein leave the skull?

    <p>Jugular foramen</p> Signup and view all the answers

    Which muscle does the spinal root of the accessory nerve supply?

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

    What is the course of the hypoglossal nerve as it passes through the neck?

    <p>Downward and forward, crossing over the internal and external carotid arteries</p> Signup and view all the answers

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