Deck 35: Lymphatics and Spread of Dental Infection

Question 1

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

Answer 1

D
Blood plasma filtrate enters the lymphatic tubules and is called lymphatic fluid.Lymphatic fluid empties into the internal jugular and subclavian veins.Note that the carotids are the arterial counterpart of the jugular veins.

Question 2

The mandibular incisors are drained by which nodes?

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

Answer 2

A
The mandibular incisors drain into a very small accumulation of nodes,the submental group.This group is found beneath the chin and also receives drainage from the tip of the tongue and the midline of the lower lip and chin.

Question 3

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

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

Answer 3

D
Untreated infection in the submental fascial spaces travels to the mylohyoid muscle and reaches an area of the pharynx referred to as the lateral pharyngeal or parapharyngeal space.From here the infection can spread to the posterior mediastinum (back of the chest)and become deadly within a short period of time.

Question 4

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

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

Question 5

Infections of mandibular premolars and anterior teeth spread into the sublingual space because the disease breaks out of 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 6

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

A) lacrimal duct
B) maxillary sinus
C) maxillary canine
D) auricular

Question 7

Each of the following areas drains into the submandibular nodes EXCEPT one.Which one 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 8

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

Question 9

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

Question 10

Which of the following cannot easily be palpated?

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

Question 11

Infections of mandibular molars spread into the submental space because the disease breaks out of 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 12

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

Question 13

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 14

Infections at the apices of 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 statement is false.
C) The first statement is false;the second statement is true.
D) Both statements are false.

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

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 17

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 18

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

Question 19

Lymphatic fluid empties into which system?

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

Question 20

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 21

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

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

The maxillary premolars are drained by the submental nodes.

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

Lymphadenopathy cannot be diagnosed without a biopsy.

Question 27

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

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

Question 28

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

Question 29

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