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Questions and Answers
Which artery supplies the soft palate and tonsils?
Which artery supplies the soft palate and tonsils?
What does the inferior labial artery primarily supply?
What does the inferior labial artery primarily supply?
Which artery is responsible for supplying the eyelids and skin of the nose?
Which artery is responsible for supplying the eyelids and skin of the nose?
Which branch of the maxillary artery supplies the external auditory meatus and TMJ?
Which branch of the maxillary artery supplies the external auditory meatus and TMJ?
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What does the middle meningeal artery supply?
What does the middle meningeal artery supply?
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The accessory meningeal artery primarily supplies which structures?
The accessory meningeal artery primarily supplies which structures?
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Which artery supplies the mandibular posterior teeth?
Which artery supplies the mandibular posterior teeth?
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What does the submental artery primarily supply?
What does the submental artery primarily supply?
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What is the primary function of arteries in the cardiovascular system?
What is the primary function of arteries in the cardiovascular system?
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Which artery provides blood to the brain and is a branch of the common carotid artery?
Which artery provides blood to the brain and is a branch of the common carotid artery?
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What is a key feature of veins in the head and neck region?
What is a key feature of veins in the head and neck region?
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Which artery is responsible for supplying the skin of the face?
Which artery is responsible for supplying the skin of the face?
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Which of the following is a terminal branch of the external carotid artery?
Which of the following is a terminal branch of the external carotid artery?
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What does an anastomosis refer to in the context of blood vessels?
What does an anastomosis refer to in the context of blood vessels?
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Which artery branches from the external carotid artery and supplies structures in the oral cavity?
Which artery branches from the external carotid artery and supplies structures in the oral cavity?
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The ascending aorta carries which type of blood after it leaves the left ventricle?
The ascending aorta carries which type of blood after it leaves the left ventricle?
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Which branch of the inferior alveolar artery supplies the mylohyoid muscle?
Which branch of the inferior alveolar artery supplies the mylohyoid muscle?
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Which artery leaves the mandibular canal through the mental foramen?
Which artery leaves the mandibular canal through the mental foramen?
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The incisive artery is primarily responsible for supplying which structures?
The incisive artery is primarily responsible for supplying which structures?
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Which of the following branches serves the lateral pterygoid muscle?
Which of the following branches serves the lateral pterygoid muscle?
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What is the primary function of the buccal artery?
What is the primary function of the buccal artery?
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Which artery is responsible for supplying the anterior two-thirds of the tongue?
Which artery is responsible for supplying the anterior two-thirds of the tongue?
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The connection of incisive arteries from both sides occurs at which anatomical location?
The connection of incisive arteries from both sides occurs at which anatomical location?
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Which artery primarily supplies the masseter muscle and TMJ?
Which artery primarily supplies the masseter muscle and TMJ?
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What is the primary function of the anterior superior alveolar artery?
What is the primary function of the anterior superior alveolar artery?
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Which artery is responsible for supplying the posterior 2/3rds of the hard palate?
Which artery is responsible for supplying the posterior 2/3rds of the hard palate?
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What does the infraorbital artery NOT supply?
What does the infraorbital artery NOT supply?
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Which structure does the sphenopalatine artery primarily connect with?
Which structure does the sphenopalatine artery primarily connect with?
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What does the descending palatine artery branch into?
What does the descending palatine artery branch into?
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Which of the following arteries supplies the floor of the mouth?
Which of the following arteries supplies the floor of the mouth?
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Which artery is not a branch of the lingual artery?
Which artery is not a branch of the lingual artery?
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Which vein is responsible for draining the brain, head, and neck?
Which vein is responsible for draining the brain, head, and neck?
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Study Notes
Oral Anatomy Lecture: Arteries & Veins
- Plexus: A large network of blood vessels
- Anastomosis: A connecting channel between blood vessels for communication.
- Artery: Carries blood away from the heart, branching into arterioles and then capillaries.
- Vein: Carries blood back to the heart. In the head and neck, few valves allow two-way blood flow, which may be relevant for dental infections.
- Venous Sinus: Blood-filled space between two tissue layers.
Ascending Aorta
- Blood leaving the left ventricle enters the ascending aorta (oxygenated).
- The aorta branches to the brachiocephalic artery (then right common carotid), and left common carotid directly.
Common Carotid Artery Division
- Internal Carotid Artery: Enters the brain via the carotid canal, receiving blood from the vertebral arteries. Supplies the brain (intracranial structures) and the eye, orbit, and lacrimal gland, as well as the ophthalmic artery.
- External Carotid Artery: Branches off at the lower border of the posterior belly of the digastric muscle, supporting cranial/facial structures. It branches into anterior and posterior sections, which further subdivide into specific branches supplying distinct areas: superior thyroid artery, lingual artery, facial artery, occipital artery, posterior auricular artery, ascending pharyngeal artery, maxillary artery, and superficial temporal artery.
Facial Artery
- Part of the external carotid artery.
- Supplies skin of the face.
- Branches into ascending palatine (soft palate, palatine muscles, tonsils), and submental (submandibular lymph nodes and salivary glands) arteries.
- Travels through the submandibular notch and into the face.
Maxillary Artery
- Terminal branch of external carotid.
- Supplies skin of the face, as well as some specified areas such as the temporal region, and facial expression muscles.
Important Veins
- Internal Jugular Vein: Drains blood in the head and neck, and receives blood from the pterygoid plexus.
- External Jugular Vein: Drains blood from behind the ear.
- Posterior Superior Alveolar Vein: Drains the pulp tissue of max teeth/periodontium (including gingiva).
- Inferior Alveolar Vein: Drains the pulp tissue of mand teeth/periodontium (including gingiva.)
- Cavernous Sinus: A significant venous structure supporting the spread of infections. It's located near the base of the brain
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Description
Explore the intricate system of arteries and veins in oral anatomy. This quiz covers key concepts such as plexus, anastomosis, and the common carotid artery division. Understand the role of these blood vessels in dental health and their connections to overall body circulation.
