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

The right common carotid artery originates from the:

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

What does the carotid sinus contain?

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

The carotid body is innervated by which nerve?

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

What structures lie posterior to the common carotid artery?

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

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

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

"Which artery supplies the tongue?"

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

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

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

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

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

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

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

What is the superior boundary of the muscular triangle?

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

Which structure forms the floor of the carotid triangle?

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

What is the inferior boundary of the submental triangle?

<p>Hyoid bone (A)</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 (B)</p> Signup and view all the answers

What forms the lateral boundary of the carotid triangle?

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

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

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

Where do the inferior thyroid veins drain into?

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

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

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

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

<p>Sternothyroids and sternohyoids (C)</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 (A)</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 (C)</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 (D)</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 (D)</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 (B)</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 (C)</p> Signup and view all the answers

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

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

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

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

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

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

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

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

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

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

Where does the glossopharyngeal nerve descend through?

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

What is the function of the external laryngeal nerve?

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

Where does the internal jugular vein leave the skull?

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

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

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

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