Podcast
Questions and Answers
Which triangle in the neck contains the submandibular gland and submandibular lymph nodes?
Which triangle in the neck contains the submandibular gland and submandibular lymph nodes?
Which nerve is not a part of the contents of the carotid triangle?
Which nerve is not a part of the contents of the carotid triangle?
Which structure is not a boundary of the anterior triangle of the neck?
Which structure is not a boundary of the anterior triangle of the neck?
What forms the superior border of the submental triangle?
What forms the superior border of the submental triangle?
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What is found laterally in the muscular triangle of the neck?
What is found laterally in the muscular triangle of the neck?
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What structure forms the posterior boundary of the carotid triangle?
What structure forms the posterior boundary of the carotid triangle?
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The common carotid artery arises from which of the following?
The common carotid artery arises from which of the following?
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Which muscles form the floor of the anterior triangle?
Which muscles form the floor of the anterior triangle?
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Which nerve supplies the mylohyoid muscle?
Which nerve supplies the mylohyoid muscle?
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What is the action of the geniohyoid muscle?
What is the action of the geniohyoid muscle?
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The common carotid artery runs under the cover of which structure's anterior border?
The common carotid artery runs under the cover of which structure's anterior border?
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Which structure does the common carotid artery NOT relate to in its course through the neck?
Which structure does the common carotid artery NOT relate to in its course through the neck?
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What is the termination point of the common carotid artery?
What is the termination point of the common carotid artery?
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Which nerve is responsible for depressing the larynx?
Which nerve is responsible for depressing the larynx?
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The digastric muscle's intermediate tendon is held to which bone?
The digastric muscle's intermediate tendon is held to which bone?
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The stylohyoid muscle originates from which structure?
The stylohyoid muscle originates from which structure?
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What forms the superior border of the submental triangle?
What forms the superior border of the submental triangle?
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Which nerve supplies the mylohyoid muscle?
Which nerve supplies the mylohyoid muscle?
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What is found laterally in the muscular triangle of the neck?
What is found laterally in the muscular triangle of the neck?
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The digastric muscle's intermediate tendon is held to which bone?
The digastric muscle's intermediate tendon is held to which bone?
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What structure forms the posterior boundary of the carotid triangle?
What structure forms the posterior boundary of the carotid triangle?
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Which nerve is responsible for depressing the larynx?
Which nerve is responsible for depressing the larynx?
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Which muscle forms part of the floor of the anterior triangle of the neck?
Which muscle forms part of the floor of the anterior triangle of the neck?
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What is the origin of the stylohyoid muscle?
What is the origin of the stylohyoid muscle?
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Which nerve supplies the mylohyoid muscle?
Which nerve supplies the mylohyoid muscle?
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What structure forms the superior border of the submental triangle?
What structure forms the superior border of the submental triangle?
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From which artery does the superior thyroid artery arise?
From which artery does the superior thyroid artery arise?
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Which muscle is responsible for depressing the hyoid bone?
Which muscle is responsible for depressing the hyoid bone?
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What is found laterally in the muscular triangle of the neck?
What is found laterally in the muscular triangle of the neck?
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Which nerve is not a part of the contents of the carotid triangle?
Which nerve is not a part of the contents of the carotid triangle?
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Which structure forms the posterior boundary of the carotid triangle?
Which structure forms the posterior boundary of the carotid triangle?
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What is the termination point of the common carotid artery?
What is the termination point of the common carotid artery?
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Study Notes
Anterior Triangle of the Neck
- Contains submandibular gland and submandibular lymph nodes located within the submandibular triangle.
- The common carotid artery arises from the brachiocephalic trunk on the right side and from the aorta on the left side.
- The anterior triangle is bounded superiorly by the mandible.
- The muscles forming the floor of the anterior triangle include the mylohyoid and digastric muscles.
- The geniohyoid muscle acts to depress the hyoid bone.
Carotid Triangle
- The posterior boundary of the carotid triangle is formed by the sternocleidomastoid muscle.
- The common carotid artery runs beneath the anterior border of the sternocleidomastoid muscle.
- The carotid triangle does not contain the great auricular nerve.
- The termination point of the common carotid artery is at the level of the fourth cervical vertebra (C4), where it bifurcates into the internal and external carotid arteries.
Submental Triangle
- The superior border of the submental triangle is formed by the body of the mandible.
- The mylohyoid muscle supplies the digastric muscle's intermediate tendon, which is secured to the body of the hyoid bone.
Muscular Triangle
- Located laterally in the muscular triangle of the neck are the strap muscles, responsible for various hyoid and laryngeal movements.
- The muscle responsible for depressing the larynx is the sternohyoid muscle.
- The origin of the stylohyoid muscle is from the styloid process of the temporal bone.
General Anatomy
- The superior thyroid artery, which supplies the thyroid gland, arises from the external carotid artery.
- The mylohyoid muscle is innervated by the mylohyoid nerve, a branch of the inferior alveolar nerve.
- The digastric muscle's intermediate tendon is held to the hyoid bone, providing a pivot point for its action.
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Description
Test your knowledge of the compartments and boundaries of the anterior triangle of the neck with this quiz. Identify the structures and subdivisions of this important anatomical area.
