Deck 19: The Lymphatic System and Lymphoid Organs and Tissues

Question 1

Lymphatic capillaries are permeable to proteins.

Answer 1

True

Question 2

Match the following:

A) Peyer's patches
B) Lymph
C) Thoracic duct
D) Lymph nodes
E) Spleen
Stores blood platelets.

Answer 2

E

Question 3

Match the following:

A) Peyer's patches
B) Lymph
C) Thoracic duct
D) Lymph nodes
E) Spleen
Isolated clusters of lymph follicles found in the wall of the small intestine.

Answer 3

A

Question 4

Figure 19.1
Using Figure 19.1, match the following:
Entrance of thoracic duct into subclavian vein.

Question 5

Figure 19.2
Using Figure 19.2, match the following:
Trabecula.

Question 6

Match the following:

A) Peyer's patches
B) Lymph
C) Thoracic duct
D) Lymph nodes
E) Spleen
Small organs intimately associated with lymphatic vessels.

Question 7

The lymphatic capillaries function to absorb the excess protein-containing interstitial fluid and return it to the bloodstream.

Question 8

Figure 19.2
Using Figure 19.2, match the following:
Medulla.

Question 9

Figure 19.1
Using Figure 19.1, match the following:
Axillary node(s).

Question 10

Match the following:

A) Peyer's patches
B) Lymph
C) Thoracic duct
D) Lymph nodes
E) Spleen
Protein-containing fluid within lymphatic vessels.

Question 11

Match the following:

A) Peyer's patches
B) Lymph
C) Thoracic duct
D) Lymph nodes
E) Spleen
Receives lymph from most of the body.

Question 12

Lymph capillary permeability is due to minivalves and protein filaments.

Question 13

Figure 19.2
Using Figure 19.2, match the following:
Medullary cord.

Question 14

Figure 19.1
Using Figure 19.1, match the following:
Cisterna chyli.

Question 15

Match the following:

A) Peyer's patches
B) Lymph
C) Thoracic duct
D) Lymph nodes
E) Spleen
Largest lymphatic organ.

Question 16

Figure 19.2
Using Figure 19.2, match the following:
Cortex.

Question 17

Peyer's patches are clusters of lymphoid tissue found primarily in the large intestine.

Question 18

Figure 19.1
Using Figure 19.1, match the following:
Thoracic duct.

Question 19

Figure 19.1
Using Figure 19.1, match the following:
Lymphatic collecting vessels.

Question 20

Figure 19.2
Using Figure 19.2, match the following:
Efferent vessels.

Question 21

Like blood, lymph flows both to and from the heart.

Question 22

Which of the following statements regarding the thymus is not True?

A) It functions strictly in T lymphocyte maturation.
B) It does not fight antigens.
C) Its stroma consists of epithelial tissue.
D) It has follicles similar to those in the spleen.

Question 23

If even a small part of the spleen is left in a ten-year-old child, it will most likely regenerate itself.

Question 24

Digested fats are absorbed from the intestine by the lymph capillaries.

Question 25

The thymus is most active during ________.

A) fetal development
B) childhood
C) middle age
D) old age

Question 26

Which of the following would not be classified as a lymphatic structure?

A) pancreas
B) spleen
C) tonsils
D) Peyer's patches of the intestine

Question 27

Because lymph vessels are very low-pressure conduits, movements of adjacent tissues are important in propelling lymph through the lymphatics.

Question 28

The simplest lymphoid organs are the lymph nodes.

Question 29

Lymphoid tissue is mainly reticular connective tissue.

Question 30

When tissues are inflamed, lymphatic capillaries develop openings that permit uptake of large particles such as cell debris, pathogens, and cancer cells.

Question 31

Lymphocytes reside temporarily in lymphoid tissue, then move to other parts of the body.

Question 32

The cisterna chyli collects lymph from the lumbar trunks draining the upper limbs and from the intestinal trunk draining the digestive organs.

Question 33

About 3 liters of fluid are lost to the tissue spaces every 24 hours and are returned to the bloodstream as lymph.

Question 34

In the spleen, red pulp is involved in the immune functions and white pulp is involved in disposing of worn-out RBCs.

Question 35

There are more efferent lymphatic vessels leaving a lymph node than there are afferent vessels entering a lymph node.

Question 36

Small organs associated with lymphatic vessels are termed ________.

A) lymph follicles
B) lymph nodes
C) lacteals
D) lymphatics

Question 37

Which lymphatic structure drains lymph from the right upper limb and the right side of the head and thorax?

A) lumbar trunk
B) thoracic duct
C) right lymphatic duct
D) cisterna chyli

Question 38

The most important role of the spleen is to provide a site for lymphocyte proliferation and immune surveillance and response.

Question 39

Lymph transport involves all but which of the following?

A) milking action of active muscle fibers
B) thorax pressure changes during breathing
C) smooth muscle contraction in the lymph capillary walls
D) lymph capillary minivalve action

Question 40

Chyle is delivered to the blood via the lymphatic system.

Question 41

When the lymphatic structures of a limb are blocked due to tumors, the result is ________.

A) shrinkage of tissues distal in the limb to the blockage due to inadequate delivery of lymph
B) severe localized edema distal to the blockage of that limb
C) increased pressure in the lymphatics proximal in the limb to the blockage
D) abnormally high lymph drainage from the distal region

Question 42

What is a bubo?

A) a wall in a lymph node
B) a lobe of the spleen
C) an infected Peyer's patch
D) an infected lymph node

Question 43

Select the correct statement about lymphoid tissue.

A) Once a lymphocyte enters the lymphoid tissue, it resides there permanently.
B) Lymphoid macrophages secrete antibodies into the blood.
C) Lymphoid tissue is predominantly reticular connective tissue.
D) T lymphocytes act by ingesting foreign substances.

Question 44

Lymph capillaries are absent in all except which of the following?

A) bones and teeth
B) bone marrow
C) CNS
D) digestive organs

Question 45

The lymphatic capillaries are ________.

A) more permeable than blood capillaries
B) less permeable than blood capillaries
C) as permeable as blood capillaries
D) completely impermeable

Question 46

Select the correct statement about lymph transport.

A) Under normal conditions, lymph vessels are very high-pressure conduits.
B) Lymph transport is faster than that occurring in veins.
C) Lymph transport is only necessary when illness causes tissue swelling.
D) Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles.

Question 47

Functions of the spleen include all of those below except ________.

A) removal of old or defective blood cells from the blood
B) forming crypts that trap bacteria
C) storage of blood platelets
D) storage of iron

Question 48

Which of the following is not a method that maintains lymph flow?

A) skeletal muscle contraction
B) breathing
C) valves in lymph vessel walls
D) capillary smooth muscle contraction

Question 49

Digestive tract-associated lymphatic tissue includes all of the following except ________.

A) Peyer's patches
B) palatine tonsils
C) lingual tonsils
D) islets of Langerhans

Question 50

Large clusters of lymph nodes occur in all of the following locations except the ________.

A) inguinal region
B) cervical region
C) axillary region
D) lower extremities

Question 51

Peyer's patches are found in the ________.

A) duodenum of the small intestine
B) ileum of the small intestine
C) large intestine
D) jejunum of the small intestine

Question 52

Select the correct statement about lymphocytes.

A) The two main types are T cells and macrophages.
B) B cells produce plasma cells, which secrete antibodies into the blood.
C) T cells are the precursors of B cells.
D) T cells are the only form of lymphocyte found in lymphoid tissue.

Question 53

Antibodies that act against a particular foreign substance are released by ________.

A) T lymphocytes
B) plasma cells
C) lymph nodes
D) medullary cords

Question 54

Lymph leaves a lymph node via ________.

A) efferent lymphatic vessels
B) afferent lymphatic vessels
C) the cortical sinus
D) the subcapsular sinus

Question 55

Which cells become immunocompetent due to thymic hormones?

A) basophils
B) lymphocytes
C) macrophages
D) monocytes

Question 56

Lymphoid tissue that appears as a swelling of the mucosa in the oral cavity is called a(n) ________.

A) tonsil
B) thymus
C) Peyer's patch
D) appendix

Question 57

Which of the following does not contain a mucosa-associated lymphatic tissue?

A) tonsil
B) thymus
C) Peyer's patch
D) appendix

Question 58

Which of the following is not a part of the lymphatic system?

A) lymphatic vessels
B) lymph nodes
C) lymph
D) erythrocytes

Question 59

The tonsils located at the base of the tongue are the ________.

A) lingual tonsils
B) palatine tonsils
C) pharyngeal tonsils
D) Peyer's tonsils

Question 60

The thymus is the only lymphoid organ that does not ________.

A) have lymphocytes
B) produce hormones
C) have a cortex and medulla
D) directly fight antigens

Question 61

Which of the following is not a function of lymph nodes?

A) act as lymph filters and activate the immune system
B) produce lymphoid cells and house granular WBCs
C) produce lymph fluid and cerebrospinal fluid
D) serve as antigen surveillance areas

Question 62

Describe the structural and functional relationship of the vessels of the vascular system and the lymphatic system.

Question 63

Lymphatic ________ are formed from the union of the largest collecting vessels.

Question 64

Highly specialized lymph capillaries called ________ are present in the villi of the intestinal mucosa.

Question 65

List the functions of the spleen.

Question 66

Which of the following is not a normal component of lymph?

A) water
B) plasma proteins
C) red blood cells
D) ions

Question 67

Tonsils have blind-ended structures called ________.

Question 68

Thymic corpuscles are always found in the lighter-colored ________ regions of the thymus.

Question 69

The ________ are the simplest lymphoid organs and are found at the entrance to the pharynx.

Question 70

Which of the following is not a function of the lymphatic system?

A) draining excess interstitial fluid
B) carrying out immune responses
C) transporting dietary fats
D) transporting respiratory gases

Question 71

Splenic ________ pulp is primarily concerned with immune functions of the spleen.

Question 72

Characterize lymph transport in terms of rate, volume, and ability to change.

Question 73

What is the consequence of obstruction of the lymphatics?

Question 74

What is the special role of the thymus gland?

Question 75

The ________ pulp of the spleen forms cuffs around the central arteries.

Question 76

Describe the mechanisms by which lymphatic fluid is moved through the lymphatics.

Question 77

Which of the following are functions of lymphoid tissue?

A) house and provide a proliferation site for lymphocytes
B) house and provide a proliferation site for neutrophils
C) furnish an ideal surveillance vantage point for lymphocytes and macrophages
D) A and C

Question 78

Name the tonsils and state their body locations.

Question 79

The appendix, tonsils, and Peyer's patches are examples of ________.

Question 80

Where are the lymph node aggregations most dense?