DDS YR1 Anatomy: Anterior Triangle of the Neck

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Questions and Answers

What are the muscles called that are in the same plane as the body wall musculature and have a flat shape?

  • Pyramid muscles
  • Round muscles
  • Strap muscles (correct)
  • Spherical muscles

Which triangle of the neck is bounded by the anterior belly of the digastric muscle and the body of the mandible?

  • Digastric triangle
  • Hyoid triangle
  • Carotid triangle
  • Submental triangle (correct)

What does the digastric triangle contain?

  • Sternohyoid and sternothyroid
  • Superior and inferior belly of omohyoid
  • Internal jugular vein and thyrohyoid
  • Facial and submental vessels (correct)

Which nerve is part of the contents found in the submental triangle of the neck?

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

What is the boundary of the carotid triangle in the neck?

<p>Sternocleidomastoid and posterior belly of digastric muscles (C)</p> Signup and view all the answers

What structures are found within the carotid triangle in the neck?

<p>Internal jugular vein and vagus nerve (A)</p> Signup and view all the answers

Which artery arises from the brachiocephalic artery on the right side?

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

Where does the common carotid artery divide into the external and internal carotid arteries?

<p>At the lower border of the thyroid cartilage (B)</p> Signup and view all the answers

What serves as a reflex baroreceptor at the bifurcation of the common carotid artery?

<p>Carotid sinus (C)</p> Signup and view all the answers

Where is the carotid body located relative to the bifurcation of the common carotid artery?

<p>Posterior to the bifurcation (C)</p> Signup and view all the answers

Which nerve provides numerous nerve endings to the carotid sinus at the bifurcation?

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

What separates the muscular triangle in the neck from the carotid triangle?

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

Which muscle assists the lateral pterygoid in mouth opening?

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

From where does the mylohyoid muscle arise?

<p>Genial tubercle of the mandible (C)</p> Signup and view all the answers

What is the nerve supply of the geniohyoid muscle?

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

Which muscle inserts into the base of the greater horn of the hyoid bone?

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

The posterior belly of the digastric muscle is supplied by which nerve?

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

What action does the geniohyoid muscle perform?

<p>Elevate the hyoid (C)</p> Signup and view all the answers

What is the nerve supply for the Sternohyoid muscle?

<p>Branch from ansa cervicalis (A)</p> Signup and view all the answers

Which muscle forms a shallow gutter, facilitating the elevation of the tongue and hyoid bone during swallowing?

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

Where does the inferior belly of the Omohyoid muscle pass to be inserted?

<p>Transverse scapular ligament and upper border of the scapula (D)</p> Signup and view all the answers

Which muscle arises from the greater horn of the hyoid and is inserted into the oblique line of the thyroid cartilage?

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

Which nerve supplies the Thyrohyoid muscle?

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

What is the function of the Anterior triangle of the neck's Nerve to mylohyoid?

<p>Supports the weight and thrust of the tongue (D)</p> Signup and view all the answers

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