Podcast
Questions and Answers
Which of the following correctly lists the arteries that arise directly from the arch of the aorta?
Which of the following correctly lists the arteries that arise directly from the arch of the aorta?
- Left common carotid, left subclavian, right vertebral
- Brachiocephalic, right common carotid, left subclavian
- Right common carotid, right subclavian, left vertebral
- Brachiocephalic, left common carotid, right subclavian (correct)
The right vertebral artery arises from which of the following arteries?
The right vertebral artery arises from which of the following arteries?
- Brachiocephalic artery
- Right common carotid artery
- Right subclavian artery (correct)
- Arch of the aorta
Into which two main branches does the common carotid artery bifurcate?
Into which two main branches does the common carotid artery bifurcate?
- Internal and external carotid arteries (correct)
- Facial and lingual arteries
- Internal and external jugular veins
- Superior and inferior thyroid arteries
Which area does the internal carotid artery primarily supply?
Which area does the internal carotid artery primarily supply?
Which of the following areas would be supplied by the external carotid artery?
Which of the following areas would be supplied by the external carotid artery?
How many main branches does the external carotid artery have?
How many main branches does the external carotid artery have?
Which of the following is NOT a branch of the external carotid artery?
Which of the following is NOT a branch of the external carotid artery?
Which of the following structures is supplied by the superior thyroid artery?
Which of the following structures is supplied by the superior thyroid artery?
The ascending pharyngeal artery supplies:
The ascending pharyngeal artery supplies:
Which of the following accurately describes the terminal branches of the lingual artery?
Which of the following accurately describes the terminal branches of the lingual artery?
What areas are supplied by the dorsal lingual artery?
What areas are supplied by the dorsal lingual artery?
What is supplied by the sublingual artery?
What is supplied by the sublingual artery?
What is the terminal part of the lingual artery and what area does it supply?
What is the terminal part of the lingual artery and what area does it supply?
Which structures does the facial artery primarily supply?
Which structures does the facial artery primarily supply?
The occipital artery supplies:
The occipital artery supplies:
Which area does the posterior auricular artery supply?
Which area does the posterior auricular artery supply?
The superficial temporal artery is known as one of the terminal branches of the external carotid artery, what is the other?
The superficial temporal artery is known as one of the terminal branches of the external carotid artery, what is the other?
Which areas does the superficial temporal artery supply?
Which areas does the superficial temporal artery supply?
The maxillary artery supplies blood to which of the following areas?
The maxillary artery supplies blood to which of the following areas?
The maxillary teeth are supplied by a branch of the maxillary artery, what is this branch termed?
The maxillary teeth are supplied by a branch of the maxillary artery, what is this branch termed?
The superior alveolar artery supplies which area?
The superior alveolar artery supplies which area?
From which artery does the inferior alveolar artery arise?
From which artery does the inferior alveolar artery arise?
Which of the following best describes the distribution of the inferior alveolar artery's branches?
Which of the following best describes the distribution of the inferior alveolar artery's branches?
Which of the following is a key branch of the external carotid artery that supplies the areas we are working in dentistry?
Which of the following is a key branch of the external carotid artery that supplies the areas we are working in dentistry?
If a dental procedure inadvertently severs the sublingual artery, which structure might be directly affected by a compromised blood supply?
If a dental procedure inadvertently severs the sublingual artery, which structure might be directly affected by a compromised blood supply?
A patient experiences numbness in the chin following a dental procedure. Which arterial branch might have been affected, leading to this sensory deficit?
A patient experiences numbness in the chin following a dental procedure. Which arterial branch might have been affected, leading to this sensory deficit?
During a tonsillectomy, which arterial branch is most at risk of being damaged, given its proximity to the tonsils?
During a tonsillectomy, which arterial branch is most at risk of being damaged, given its proximity to the tonsils?
If a patient presents with impaired blood flow to the forehead, which artery is most likely compromised?
If a patient presents with impaired blood flow to the forehead, which artery is most likely compromised?
After extraction of a maxillary molar, a patient experiences prolonged bleeding. Which artery, or its branches, is the most likely source of the bleed?
After extraction of a maxillary molar, a patient experiences prolonged bleeding. Which artery, or its branches, is the most likely source of the bleed?
A patient presents with ischemia of the tongue, which artery is mostly likely affected?
A patient presents with ischemia of the tongue, which artery is mostly likely affected?
After undergoing surgery, a patient reports difficulty swallowing and a sore throat. Which artery may have been affected during the procedure?
After undergoing surgery, a patient reports difficulty swallowing and a sore throat. Which artery may have been affected during the procedure?
Injury to which artery would most significantly compromise the blood supply to the submandibular gland?
Injury to which artery would most significantly compromise the blood supply to the submandibular gland?
A patient who received a blow to the posterior neck experiences vision disturbances and dizziness. Which arterial system may be compromised?
A patient who received a blow to the posterior neck experiences vision disturbances and dizziness. Which arterial system may be compromised?
Blood supply to hard and soft tissues of the maxilla is derived from:
Blood supply to hard and soft tissues of the maxilla is derived from:
In a patient undergoing surgery impacting the carotid sheath, which artery is at greatest risk of direct injury?
In a patient undergoing surgery impacting the carotid sheath, which artery is at greatest risk of direct injury?
What blood supply to the head and neck allows for the external Carotid to give rise to the blood?
What blood supply to the head and neck allows for the external Carotid to give rise to the blood?
During a neck dissection procedure, a surgeon must be particularly careful to avoid injuring the vertebral artery where it emerges from which anatomical structure?
During a neck dissection procedure, a surgeon must be particularly careful to avoid injuring the vertebral artery where it emerges from which anatomical structure?
What is the initial vessel you need to think about when the supply is required for blood vessels?
What is the initial vessel you need to think about when the supply is required for blood vessels?
What 2 bilateral arteries have a significant importance in blood supply to the head and neck?
What 2 bilateral arteries have a significant importance in blood supply to the head and neck?
The main arterial blood supply to the head and neck originates from:
The main arterial blood supply to the head and neck originates from:
Flashcards
What is the arch of the aorta?
What is the arch of the aorta?
The main arterial blood supply to the head and neck originates from here.
What is the brachiocephalic artery?
What is the brachiocephalic artery?
This gives rise to the right subclavian and right common carotid arteries.
What are right and left vertebral arteries?
What are right and left vertebral arteries?
These supply blood to the spinal cord and vertebral muscles.
What are the right and left common carotid arteries?
What are the right and left common carotid arteries?
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What is the internal carotid artery?
What is the internal carotid artery?
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What is the external carotid artery?
What is the external carotid artery?
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What are the main branches of the external carotid artery?
What are the main branches of the external carotid artery?
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What does the superior thyroid artery supply?
What does the superior thyroid artery supply?
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What does the ascending pharyngeal artery supply?
What does the ascending pharyngeal artery supply?
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What does the lingual artery supply?
What does the lingual artery supply?
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What does the dorsal lingual artery supply?
What does the dorsal lingual artery supply?
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What does the sublingual artery supply?
What does the sublingual artery supply?
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What does the deep lingual artery supply?
What does the deep lingual artery supply?
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What does the facial artery supply?
What does the facial artery supply?
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What does the occipital artery supply?
What does the occipital artery supply?
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What does the posterior auricular artery supply?
What does the posterior auricular artery supply?
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What does the superficial temporal artery supply?
What does the superficial temporal artery supply?
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What is the Maxillary artery?
What is the Maxillary artery?
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How are the maxillary teeth supplied with blood?
How are the maxillary teeth supplied with blood?
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How are the mandibular teeth supplied?
How are the mandibular teeth supplied?
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Study Notes
- The main arterial blood supply to the head and neck originates from the arch of the aorta.
- The arch of the aorta gives rise to the brachiocephalic, left common carotid, and right subclavian arteries.
- The brachiocephalic artery further divides into the right subclavian and right common carotid arteries.
- The right subclavian artery gives rise to the right vertebral artery.
- The right common carotid artery forms the internal and external carotid arteries.
- The arch of the aorta directly gives rise to the left subclavian and left common carotid arteries.
- The left subclavian artery gives rise to the left vertebral artery.
- The left common carotid artery gives rise to the internal and external carotid arteries.
- The right and left vertebral arteries supply blood to the spinal cord and vertebral muscles.
- The left common carotid comes directly from the arch of the aorta.
- The right common carotid comes from the brachiocephalic artery.
- The right and left common carotid arteries supply both sides of the head and neck in a mirror image.
Internal Carotid Artery
- The internal carotid artery extends deep within the face and through the carotid canal at the base of the skull, entering the cranial cavity.
- Primarily supplies the brain, eyes, forehead, and part of the nose.
External Carotid Artery
- The external carotid artery remains superficial.
- Supplies the neck, face, scalp, tongue, and maxilla, branching into eight main arteries.
- These branches include the superior thyroid, ascending pharyngeal, lingual, facial, occipital, posterior auricular, superficial temporal, and maxillary arteries.
- These arteries supply structures within the head.
Mnemonic
- Mnemonic can aid memorization
- S = Superior Thyroid = She
- A = Ascending Pharyngeal = Always
- L = Lingual = Likes
- F = Facial = Friends
- O = Occipital = Over
- P = Posterior Auricular = Papa
- S = Superficial Temporal = Sister
- M = Maxillary = Mama
Branch Supplies:
- Superior Thyroid: Supplies the thyroid gland, some neck muscles, and the larynx.
- Ascending Pharyngeal: Supplies the pharynx, soft palate, and prevertebral muscles.
- Lingual Artery: Supplies essential structures, so is categorized further
- Sublingual: Supplies the sublingual gland, muscles in the floor of the mouth, buccal, and gingival mucous membranes.
- Dorsal Lingual: Supplies the base of the tongue, palatoglossal arch, tonsils, soft palate, and epiglottis.
- Deep Lingual: Terminal portion of the lingual artery; supplies the body of the tongue.
- Facial Artery: Supplies the muscles and skin of the face and the submandibular gland.
- Occipital Artery: Supplies muscles in the posterior neck, skin of the neck and ear, and the scalp in the occipital region.
- Posterior Auricular Artery: Supplies muscles in the posterior neck, skin over and around the ear, and the ear structures.
- Superficial Temporal Artery: Supplies some skin and muscles of the scalp, the parotid gland, and the temporomandibular joint. One of two terminal branches of the external carotid artery, alongside the maxillary artery.
- Maxillary Artery: Supplies blood to the maxillofacial region, including hard and soft tissues of the maxilla and mandible, the nasal cavity, and deep facial areas.
Teeth
- Maxillary Artery: Supplies teeth.
- Maxillary Teeth: Supplied by the superior alveolar artery which branches into posterior, middle, and anterior branches to supply each tooth.
- Mandibular Teeth: Supplied by the inferior alveolar artery. Which forms a dental branch, incisive branch, and the mental artery to supply the mandibular teeth.
Summary
- The arterial supply to the head and neck is complex.
- The two main bilateral vessels to take note of are (internal/external carotid).
- The external carotid supplies the blood to most of the mouth and face.
- Key branches are; lingual, facial, and maxillary for work around the oral cavity
- Remembering the other surrounding branches could be useful.
- Find a pneumonic that works for you!
Caveat
- Vessels may vary from person to person, therefore, it is best to further read and be aware.
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