Question 1

Which of the following listed is NOT a branch of the external carotid artery?
A)Middle meningeal
B)Facial
C)Ascending pharyngeal
D)Posterior auricular

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 2

Which of the following oral structures or regions is NOT drained DIRECTLY by the facial vein?
A)Upper lip
B)Lower lip
C)Submental space
D)Lateral scalp

Accepted Answer

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

Question 3

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.
A)Both statements are true.
B)Both statements are false.
C)The first statement is true;the second is false.
D)The first statement is false;the second is true.

Accepted Answer

Veins generally become larger as they approach the heart, not smaller. Additionally, there can be significant variance in the location of veins in the head and neck.

Question 4

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.
A)Both the statement and the reason are correct and related.
B)Both the statement and the reason are correct but NOT related.
C)The statement is correct,but the reason is NOT.
D)The statement is NOT correct,but the reason is correct.
E)NEITHER the statement NOR the reason is correct.

Accepted Answer

The statement and reason are both correct and are related. It is important for the dental professional to locate larger blood vessels in order to avoid compromising them during a dental procedure, especially when administering a local anesthetic injection. Diseases such as hypertension or bleeding disorders may also affect these vessels, making it important for the dental professional to be aware of their location.

Question 5

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?
A)Posterior superior alveolar veins
B)Pterygoid plexus of veins
C)Maxillary vein
D)Middle meningeal vein

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.

Question 6

What does the term anastomosis mean?
A)Communication of blood vessels with another connecting channel
B)Foreign material in the blood
C)A large network of blood vessels
D)Clot that forms on the inner blood vessel walls

Accepted Answer

Anastomosis refers to the communication between blood vessels or other tubular structures with another connecting channel. It can allow blood to flow between two different blood vessels or bypass a blocked area.

Question 7

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?
A)Middle temporal artery
B)Transverse facial artery
C)Superficial temporal artery
D)Maxillary artery

Accepted Answer

The superficial temporal artery can be visualized under the skin of the temporal region during extraoral examination. The middle temporal artery is not visible as it is deep to the skin. The transverse facial artery runs horizontally across the face and is not typically visible in the temporal region. The maxillary artery is not visible as it runs deeper within the skull.

Question 8

What is the MAJOR destination of the subclavian artery as it travels in the body?
A)Intracranial structures
B)Upper extremity or arm
C)Tissue inferior to the hyoid bone
D)External scalp tissue

Accepted Answer

The subclavian artery is a major artery that supplies blood to the upper extremity or arm.

Question 9

Which term is BEST used to describe a blood vessel that travels to the heart carrying blood?
A)Arteriole
B)Artery
C)Capillary
D)Vein

Accepted Answer

A vein is a blood vessel that carries blood towards the heart.

Question 10

Which of the following structures listed is NOT supplied by the lingual artery?
A)Suprahyoid muscles
B)Floor of the mouth
C)Mylohyoid muscle
D)Tongue

Accepted Answer

The mylohyoid muscle is primarily supplied by the mylohyoid branch of the inferior alveolar artery, not the lingual artery.

Question 11

Which of the following veins listed drains MOST of the head and neck?
A)Internal jugular vein
B)External jugular vein
C)Inferior alveolar vein
D)Anterior jugular vein

Accepted Answer

The internal jugular vein is the largest vein in the neck and drains most of the blood from the head and neck, including the brain. The external jugular vein drains the superficial regions of the head and neck, the inferior alveolar vein drains the mandible and teeth, and the anterior jugular vein drains the anterior part of the neck.

Question 12

Which of the following statements BEST explains why BOTH facial and dental infections can lead to serious complications for the patient?
A)Antibiotics do NOT work well to combat facial and dental infections.
B)Communication by way of anastomoses and blood flow direction is involved in the spread of infection in the head and neck.
C)Both facial and dental infections have been found to be difficult to detect and treat early.
D)Blood supply is based on a one-to-one relationship of blood vessel to muscle.

Accepted Answer

Communication by way of anastomoses and blood flow direction is involved in the spread of infection in the head and neck, and this in turn can lead to serious complications for the patient.

Question 13

A branch of the maxillary artery reaches the nasal cavity through the
A)infraorbital foramen.
B)incisive foramen.
C)sphenopalatine foramen.
D)greater and lesser palatine foramina.

Accepted Answer

The sphenopalatine foramen is the opening that allows the entry of a branch of the maxillary artery into the nasal cavity. The infraorbital foramen allows the infraorbital nerve and vessels to pass through, the incisive foramen allows the nasopalatine nerve and vessels to pass through, and the greater and lesser palatine foramina allow vessels and nerves to reach the roof of the mouth.

Question 14

Which are the MAJOR arteries that supply the head and neck?
A)Aorta,brachiocephalic
B)Common carotid,subclavian
C)Posterior auricular,occipital
D)Superficial temporal,facial

Accepted Answer

The major arteries that supply the head and neck are the common carotid arteries and the subclavian arteries. The common carotid arteries supply the head, neck, and part of the face, while the subclavian arteries supply the muscles and other structures of the neck. The other choices listed are either not major arteries that supply the head and neck (A and C) or only supply specific areas of the head and neck (D).

Question 15

Which branch of the maxillary artery supplies the maxillary anterior teeth by way of each tooth's apical foramen?
A)Infraorbital artery
B)Inferior alveolar artery
C)Sphenopalatine artery
D)Anterior superior alveolar artery

Accepted Answer

The anterior superior alveolar artery supplies the maxillary anterior teeth by way of each tooth's apical foramen.

Question 16

The common carotid artery is branchless and travels superiorly along the neck,lateral to the trachea and larynx to the superior border of the thyroid cartilage.The common carotid artery travels in a sheath deep to the superior,middle,and inferior pharyngeal constrictor muscle.
A)Both statements are true.
B)Both statements are false.
C)The first statement is true;the second is false.
D)The first statement is false;the second is true.

Accepted Answer

The first statement is true as the common carotid artery is indeed branchless and travels superiorly along the neck. However, the second statement is false as the common carotid artery travels in a sheath deep to the sternocleidomastoid muscle, not the pharyngeal constrictor muscle.

Question 17

What is the blood supply that is DIRECTLY provided to the sternocleidomastoid muscle?
A)Internal carotid artery
B)Superior thyroid artery
C)Lingual artery
D)Angular artery

Accepted Answer

The superior thyroid artery provides direct blood supply to the sternocleidomastoid muscle, which is a neck muscle that extends from the sternum and clavicle to the mastoid process of the temporal bone. The internal carotid artery supplies blood to the brain, while the lingual artery supplies blood to the tongue and the angular artery supplies blood to the medial side of the eye.

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?
A)Hematoma
B)Thrombus
C)Bacteremia
D)Hemorrhage

Accepted Answer

Hemorrhage is a serious, life-threatening blood vessel lesion that occurs due to serious trauma or injury, causing large amounts of blood to escape into the surrounding tissue without clotting. Hemorrhage can cause hypovolemic shock, leading to organ failure and even death. Hematoma is a localized mass of blood that forms outside of blood vessels, usually due to injury, but it can be resolved by natural reabsorption by the body. Thrombus is a blood clot that forms inside a blood vessel, obstructing blood flow, and can cause serious complications if it travels to another part of the body. Bacteremia is a condition where bacteria is present in the bloodstream, which can cause sepsis, an infection that can lead to organ failure and death.

Question 19

Blood vessels are MORE numerous than lymphatic vessels.However,the venous blood vessels MAINLY parallel the lymphatic vessels.
A)Both statements are true.
B)Both statements are false.
C)The first statement is true;the second is false.
D)The first statement is false;the second is true.

Accepted Answer

The answer of Blood vessels are MORE numerous than lymphatic...

Question 20

Which of the following arteries is a DIRECT branch off of the aorta?
A)Common carotid artery
B)External carotid artery
C)Pterygoid artery
D)Brachiocephalic artery

Accepted Answer

The brachiocephalic artery is a direct branch off of the aorta, while the common carotid artery, external carotid artery, and pterygoid artery are not.

Quiz 6: Vascular System

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

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

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.

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.

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?

What does the term anastomosis mean?

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?

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

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

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

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

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

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

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

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

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

What is the blood supply that is DIRECTLY provided to the sternocleidomastoid muscle?

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?

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

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