Deck 35: Lymphatics and Spread of Dental Infection

Question 1

Each of the following nodes drain into the upper deep cervical nodes EXCEPT one. Which is the EXCEPTION?

A) Submandibular
B) Retropharyngeal
C) Parotid
D) Mental

Answer 1

D
Although technically the mental nodes drain directly into the submandibular, it must be noted that the submandibular drains into the upper deep cervical.

Question 2

A swelling below the eye is MOST likely caused by infection from the

A) Lacrimal duct
B) Maxillary sinus
C) Maxillary canine
D) Auricular

Answer 2

C
Infections involving the maxillary teeth react in a unique pattern. Swelling below the eye is a classic example of infection arising from a maxillary canine tooth. Note that if such an infection drains into the buccal vestibule or palate it typically will not progress to the ocular area.

Question 3

The mandibular third molars drain into the upper deep cervical nodes. These nodes drain into the retropharyngeal nodes located behind the throat wall.

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

Answer 3

B
Maxillary third molars also drain into the deep cervical nodes. The retropharyngeal nodes, as well as numerous other groups, drain into the deep cervical node group. This group is located on the lateral surface of the internal jugular vein.

Question 4

The lymphatic system is part of the overall lymphoid system. The immune system, which includes the blood vessels, is a separate system.

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

Question 5

Infections of mandibular molars spread into the submental space because the disease breaks out of the below the mylohyoid line.

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

Question 6

Lymph nodes are grouped together into small clusters. The clusters are interconnected by connective tissue.

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

Question 7

Infections at the apices of the teeth cause swelling either mesial or distal to the involved tooth. A swelling of apical origin occurring in the vestibule is sometimes called a gumboil.

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

Question 8

A subtle, difficult to diagnose pattern of infection spreads through fascial spaces. A fascial space exists between layers of muscles or layers of connective tissue.

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

Question 9

Which cancerous structure would be MOST difficult to successfully treat?

A) Root of tongue
B) Tip of tongue
C) Lesion on upper lip
D) Incisive papilla

Question 10

Lymphatic fluid empties into which system?

A) Glandular
B) Endocrine
C) Arterial
D) Venous

Question 11

Which of the following cannot easily be palpated?

A) Retropharyngeal
B) Submental
C) Submandibular
D) Upper deep cervical

Question 12

Lymph nodes fighting an infection become enlarged and tender because lymphocytes within the node have begun multiplying and combating infection.

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

Question 13

The mandibular incisors are drained by which nodes?

A) Submental
B) Submandibular
C) Lower deep cervical
D) Upper deep cervical

Question 14

Bacteria and other microorganisms that have invaded tissue spaces are often prevented from causing illness because the lymphatic system filters fluids and combats infection during periods of rest.

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

Question 15

When a throat infection begins, the first group of nodes to become involved is the retropharyngeal nodes because they are behind the throat wall.

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

Question 16

When blood plasma filtrate enters the lymphatic tubules, it is called lymphatic fluid. Lymphatic fluid empties into the venous system at the junction of the carotid veins.

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

Question 17

A buccal abscess of a mandibular molar initially drains into the

A) Sublingual space
B) Buccal vestibule
C) Lateral pharyngeal space
D) Parapharyngeal space

Question 18

Each of the following areas drain into the submandibular nodes EXCEPT one. Which is the EXCEPTION?

A) Maxillary third molars
B) Mandibular canines
C) The floor of the mouth
D) Most of the tongue
E) The hard palate

Question 19

A fascial infection of the submental space would spread to which space?

A) Posterior mediastinum
B) Sublingual
C) Retropharyngeal
D) Parapharyngeal

Question 20

Infections of mandibular premolars and anterior teeth spread into the sublingual space because the disease breaks out of the bone below the mylohyoid line.

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

Question 21

Lymphadenopathy cannot be diagnosed without a biopsy.

Question 22

An infection from the upper deep cervical nodes would next move into the

A) Fascial spaces
B) Lower deep cervical nodes
C) Retropharyngeal nodes
D) Retropharyngeal spaces

Question 23

All lymphatic vessels in the head and neck area ultimately drain into the junction of the internal jugular and subclavian veins.

Question 24

Infections that reach the posterior mediastinum can be fatal.

Question 25

Maxillary infections around the eye or cheek can spread to the lateral pharyngeal space.

Question 26

The maxillary premolars are drained by the submental nodes.

Question 27

Ludwig's angina refers to an infection in which space?

A) Submental
B) Sublingual
C) Lateral pharyngeal
D) Parapharyngeal

Question 28

The distribution pattern of lymphatic vessels has been well determined by scientists. This information can be used as a diagnostic tool and as a means of slowing the spread of infection and cancer.

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

Question 29

A swelling in the cheek is usually related to an infection in the maxillary canine.