Deck 10: Lymphatic System

Question 1

Tonsils are masses of lymphoid tissue located in the oral cavity and pharynx. Like lymph nodes, tonsils are located along 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.

Answer 1

C

Question 2

The lymphatics of the right side of the head and the neck converge by way of the right jugular trunk. These lymphatics then join the lymphatics from the right arm and thorax to form the thoracic duct.

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.

Answer 2

C

Question 3

Which of the teeth listed below, when infected, do NOT initially drain into the submandibular lymph nodes but into another group of lymph nodes?

A) Maxillary anterior teeth
B) Maxillary first and second molars
C) Maxillary premolars
D) Maxillary third molars

Answer 3

D

Question 4

What is the term used to denote the spread of cancer from the original or primary site of the tumor to another secondary site?

A) Miosis
B) Metastasis
C) Mitosis
D) Mydriasis

Question 5

Which of the following lymph nodes can be effectively palpated during an extraoral examination by having the patient turn his or her head to the side?

A) Superficial cervical lymph nodes
B) Anterior jugular lymph nodes
C) Inferior cervical lymph nodes
D) Occipital lymph nodes

Question 6

What is another term for external jugular lymph nodes?

A) Superficial cervical nodes
B) Suprahyoid lymph nodes
C) Anterior cervical nodes
D) Mastoid glands
E) Occipital glands

Question 7

Which of the following signs or symptoms listed below CANNOT be used to describe a lymph node involved in cancer?

A) Bony hard
B) Nonmotile
C) NOT tender
D) Mobile

Question 8

Which of the following structures allows lymph to flow DIRECTLY into the surrounding lymph nodes?

A) Afferent vessel
B) Efferent vessel
C) Lymphatic duct
D) Capillary
E) Venule

Question 9

The occipital lymph nodes can be palpated during the extraoral examination by asking the patient to tilt his or her head to the left and then to the right with the chin upward BECAUSE the occipital lymph nodes empty into the inferior deep cervical nodes of the neck.

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.

Question 10

Which of the following terms BEST describes the process in lymph nodes when a patient has a disease process active in a region, such as cancer or infection, by increasing in size and changing the consistency of the lymphoid tissue?

A) Lymphosarcoma
B) Lymphangitis
C) Lymphedema
D) Lymphadenopathy

Question 11

The lymphatics are a part of the immune system, and they help fight disease processes. Another component of the lymphatic system is the thymus gland because it works within immune system.

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.

Question 12

Which of the following lymph nodes are NOT considered to be superficial lymph nodes located in the head?

A) Occipital lymph nodes
B) Retropharyngeal lymph nodes
C) Retroauricular lymph nodes
D) Facial lymph nodes

Question 13

Which of the following is considered the MAIN role of the lymph nodes in relationship to the lymph within lymphatic vessels?

A) Filtration
B) Liquefaction
C) Disassociation
D) Oxygenation

Question 14

Unlike capillaries, lymphatic vessels have valves similar to many veins. These valves ensure a one-way flow of lymph through the lymphatic vessel.

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.

Question 15

The palatine tonsil is located in the oral cavity between the posterior faucial pillar and which of the following structures?

A) Posterior wall of the nasopharynx
B) Anterior faucial pillar
C) Uvula
D) Soft palate
E) Pterygoidmandibular fold

Question 16

MOST lymph from the head and neck ultimately drains through which group of lymph nodes?

A) Superior deep cervical nodes
B) External jugular nodes
C) Inferior deep cervical nodes
D) Anterior cervical nodes

Question 17

The retroauricular lymph nodes are also known by which of the following terms?

A) Mastoid lymph nodes
B) Facial lymph nodes
C) Deep parotid lymph nodes
D) Retropharyngeal lymph nodes

Question 18

In healthy patients, lymph nodes are usually small, soft, and free or mobile in the surrounding tissue. Therefore lymph nodes normally can be easily visualized or palpable during an extraoral examination of a healthy patient.

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.

Question 19

The submandibular lymph nodes are located at the inferior border of the ramus of the mandible, just superficial to the submandibular salivary gland and within the submandibular fascial space. These nodes drain the cheeks, upper lip, body of the tongue, anterior hard palate, as well as the mandibular incisors and maxillary third molars.

A) Both statement 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.

Question 20

A dental professional needs to check carefully for any palpable nodes of the head and neck during an extraoral examination BECAUSE the palpable lymph nodes may help determine where a disease process is active.

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.

Question 21

Lymph from a particular tissue region drains into a secondary node, regional node, or master node. Secondary nodes, in turn, drain into a primary node or central node.

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.

Question 22

The dental professional needs to remember that the lymph nodes NEVER drain other structures of the head and neck but only the teeth and associated structures. A patient may need a referral when lymph nodes are palpable due to a disease process.

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.

Question 23

The lymph nodes of the head are located in either a superficial or a deep position relative to the surrounding tissue. All nodes of the head drain either the right or left tissue, structures, or organs in each region.

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.

Question 24

From the following list of descriptions, select those for tonsillar tissue.

A) Located in pharynx
B) Drains into superior deep cervical lymph nodes
C) Masses of tissue in oral cavity
D) Found along lymphatic vessels
E) Drains into the jugulodigastric lymph node

Question 25

From the following list of descriptions, select those that can describe the lymphatic system or its components: the vessels or the nodes.

A) Mainly parallels nervous system
B) Only superficial in location
C) No part visualized in healthy patients
D) Has valves for one-way flow

Question 26

From the following list of lymph nodes, select those that are categorized as superficial cervical lymph nodes.

A) Retropharyngeal lymph nodes
B) Jugulodigastric lymph node
C) External jugular lymph nodes
D) Anterior jugular lymph nodes

Question 27

From the following list of lymph nodes, select those that are categorized as facial lymph nodes.

A) Malar lymph nodes
B) Buccal lymph nodes
C) Anterior auricular lymph nodes
D) Retroauricular lymph nodes

Question 28

The retroauricular, anterior auricular, and superficial parotid nodes drain the external ear, lacrimal gland, and adjacent regions of the scalp and face. All of these nodes empty into the submandibular lymph nodes.

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.

Question 29

From the following list of descriptions, select those for the jugulo-omohyoid lymph node.

A) Superior deep cervical lymph node
B) Drains parts of tongue
C) Drains submental region
D) Inferior deep cervical lymph node

Question 30

The thoracic duct is MUCH smaller than the right lymphatic duct BECAUSE it drains the lymph from the entire lower half of the body (both the right and left sides).

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.