Question 1

Which of the following arteries is a DIRECT branch off of the aorta?

Accepted Answer

The brachiocephalic artery is a direct branch off of the aorta. The common carotid artery, external carotid artery, and pterygoid artery all branch off of other arteries.

Question 2

Blood vessels are MORE numerous than lymphatic vessels. However, the venous blood vessels MAINLY parallel the lymphatic vessels.

Accepted Answer

D

Question 3

Which of the following statements BEST explains why BOTH facial and dental infections can lead to serious complications for the patient?

Accepted Answer

Valves in the veins are mostly absent in the head and neck area, which means that infections in these areas can easily spread into the bloodstream and lead to serious complications such as sepsis or heart and lung infections. Both facial and dental infections can easily spread to nearby veins and tissues, and from there, to other parts of the body. Therefore, it is crucial to treat facial and dental infections promptly to prevent further complications.

Question 4

Which of the following veins listed drains MOST of the head and neck?

Accepted Answer

The internal jugular vein is the major vein that drains most of the blood from the head and neck, including the brain, face, and neck structures. The external jugular vein drains only superficial structures of the head and neck, the inferior alveolar vein drains the lower teeth and associated structures, and the anterior jugular vein drains the anterior neck.

Question 5

What does the term anastomosis mean?

Accepted Answer

Anastomosis refers to the communication of blood vessels with another connecting channel, such as when two arteries or veins merge.

Question 6

A branch of the maxillary artery reaches the nasal cavity through the

Accepted Answer

The sphenopalatine foramen is the opening in the posterior nasal septum that allows passage of the sphenopalatine artery into the nasal cavity. This artery is a branch of the maxillary artery and supplies blood to the lateral wall and septum of the nasal cavity. The infraorbital foramen and greater and lesser palatine foramina are also related to the maxillary artery but supply blood to other structures like the skin of the face, upper teeth, and hard and soft palate respectively. The incisive foramen is related to the anterior branch of the sphenopalatine artery (nasopalatine artery) that supplies the nasal septum and palate.

Question 7

Which term is BEST used to describe a blood vessel that travels to the heart carrying blood?

Accepted Answer

Veins carry blood towards the heart, while arteries carry blood away from the heart. Arterioles and capillaries are smaller vessels that branch off from arteries and serve to distribute blood to the tissues.

Question 8

Which are the MAJOR arteries that supply the head and neck?

Accepted Answer

The major arteries that supply the head and neck are the common carotid and subclavian arteries. The common carotid artery supplies the anterior part of the head and neck, while the subclavian artery supplies the posterior part of the head and neck. The other options list specific branches of these arteries, but do not reflect the major arteries themselves.

Question 9

Which of the following listed is NOT a branch of the external carotid artery?

Accepted Answer

The middle meningeal artery is a branch of the maxillary artery, which itself is a branch of the external carotid artery, but it is not directly a branch of the external carotid artery.

Question 10

Which branch of the maxillary artery supplies the maxillary anterior teeth by way of each tooth's apical foramen?

Accepted Answer

The anterior superior alveolar artery is the branch of the maxillary artery that supplies the maxillary anterior teeth through each tooth's apical foramen.

Question 11

What is the MAJOR destination of the subclavian artery as it travels in the body?

Accepted Answer

The subclavian artery is a major artery that supplies blood to the upper extremity or arm as it travels in the body.

Question 12

Which of the following structures listed is NOT supplied by the lingual artery?

Accepted Answer

The answer of Which of the following structures listed is...

Question 13

The dental professional MUST be able to locate the larger blood vessels of the head and neck BECAUSE these vessels may become compromised due to a disease process or during a dental procedure such as a local anesthetic injection.

Accepted Answer

The statement and the reason are both correct and related. Locating larger blood vessels is important for a dental professional to manage potential complications during procedures or due to underlying diseases that can affect blood flow.

Question 14

How is the blood supply DIRECTLY provided to the sternocleidomastoid muscle?

Accepted Answer

The blood supply to the sternocleidomastoid muscle is directly provided by the superior thyroid artery, which is a branch of the external carotid artery.

Question 15

Which of the following blood vessels NOT only protects the maxillary artery from being compressed during mastication but also accommodates changes in volume of the infratemporal fossa that occur when the mandible moves?

Accepted Answer

The pterygoid plexus of veins not only protects the maxillary artery from being compressed during mastication, but also accommodates changes in volume of the infratemporal fossa that occur when the mandible moves. The other options listed do not have this function.

Question 16

Which of the following oral structures or regions is NOT drained by the facial vein?

Accepted Answer

The lateral scalp is not drained by the facial vein. Instead, it is drained by the posterior auricular vein and the occipital vein. The upper lip, lower lip, and submental space are all drained by the facial vein.

Question 17

During the extraoral examination of a patient, an artery is visually noted under the skin of the patient in the temporal region. Which artery can be visualized in this manner during the examination?

Accepted Answer

The artery that can be visualized under the skin of the patient in the temporal region during extraoral examination is the superficial temporal artery.

Question 18

What is a serious, life-threatening blood vessel lesion that occurs when a blood vessel is seriously traumatized, allowing large amounts of blood to escape into the surrounding tissue without clotting?

Accepted Answer

Hemorrhage is a serious, life-threatening blood vessel lesion that occurs when a blood vessel is seriously traumatized, allowing large amounts of blood to escape into the surrounding tissue without clotting. A hematoma is a buildup of blood outside of the blood vessels, but it typically occurs in a contained area and can result from a variety of causes, not just serious trauma. A thrombus is a blood clot that forms within a blood vessel and can cause serious health problems if it blocks blood flow. Bacteremia is the presence of bacteria in the bloodstream, which can lead to serious infections but is not directly related to a blood vessel lesion.

Question 19

The common carotid artery is branchless and travels superiorly along the neck, lateral to the trachea and larynx to the upper border of the thyroid cartilage. The common carotid artery travels in a sheath deep to the superior, middle, and inferior pharyngeal constrictor muscle.

Accepted Answer

The first statement is true, while the second statement is false. The common carotid artery travels in a sheath deep to the sternocleidomastoid muscle, not the pharyngeal constrictor muscles.

Question 20

The veins of the head and neck start out as large venules and become smaller as they near the base of the neck on their way to the heart. The veins of the head and upper neck are usually symmetric in location with limited or NO variance regarding their location.

Accepted Answer

The answer of The veins of the head and neck...

Quiz 6: Vascular System