Lymph Node

Lymph Node

Capsule, Cortex, Medulla and Trabeculae of Lymph node

Medullary Cords and Medullary Sinus of Lymph Node

Lymph Follicle and Germinal Center of Lymph Node

Palatine Tonsil

Germinal Center, Tonsillar Crypt, and Lymphoid Noduled of Palatine Tonsil

Lumen and Nodule of Appendix

Germinal Center of Appendix

Overview of the Spleen

Red Pulp, White Pulp and central Artery of the spleen

Splenic Cords and Splenic Sinusoids

Spleen

Thymus

Reticular Cells and Thymic (Hassels's) Corpuscle of the Thymus

Thymus

Peyer's Patches of the Ileum

Structure of a Lymph Node (p. 756 in text book)

Figure 20.1 (p. 752 in text book)

Figure 20.2 Lymphatic System (p. 753 in text book)

Figure 20.2b (p. 753 in text book)

Increasing pressure inside lymph capillary

What promotes closure to the mini-valves associated with lymph capillaries?

Bone Marrow and Thymus

___ are primary lymphoid organs.

White Pulp of the Spleen

What areas are in a secondary lymphoid allow intimate contact between blood and the lymphocytes?

Deep in the cortex

Where in the lymph node do the T- Cells first encounter antigens presented by dendritic cells?

Peyer's Patches

Collections of lymphoid tissues, called MALT (mucosa associated lymphoid tissue), are strategically placed throughout the respiratory, digestive and genitourinary system. Which one of these is located at the end of the Small Intestine?

Thymus

There is a decrease in our ability to fight infection as we age. Which lymphoid organ may have a role in this decline?

B) blood vessels

Which of the following is NOT a pat of the lymphatic system?

A) lymphatic vessels

B) blood vessels

C) lymph nodes

D) lymph

wall of the small intestine

Peyer's Patches are located ___.

Lymph Nodes

Small organs associated with lymphatic vessels are termed ___.

directly fight antigens

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

TRUE

T/F: Lymph Capillary permeability is due to mini-valves and protein filaments.

Base of the tongue

Where are the lingual tonsils located?

TRUE

T/F: When tissues are inflammed, lymphatic capillaries develop openings that permit uptake of large particles such as cell debris, pathogens and cancer cells.

Right Lymphatic Duct

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

Thoracic Duct

What structure delivers lymph into the junction of the internal Jugular vein and subclavian vein?

Plasma Cells

Which lymphoid cells secrete antibodies?

Tonsil

Lymphoid tissue that appears as a swelling of the mucosa in the oral cavity is called a ___.

Childhood

The thymus is most active during ___.

FALSE

T/F: Lymph arrives to the lymph nodes via efferent lymphatic vessels.

Thickness of the walls

What do collecting lymphatic vessels NOT share in common with veins of the cardiovascular system?

Palatine Tonsils

The ___ are the most likely to become infected.

venous circulation

Once collected, lymph is returned to ___.

Spleen

Which lymphoid organ provides a site for lymphocyte proliferation and immune surveillance and response and provides blood-cleansing functions?

Plasma Cells

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

Red blood cells

___ is not a normal component of lymph.

Red Pulp

Where are worn-out erythrocytes found in the spleen?

return tissue fluid to the bloodstream

Lymphatic vessels ____.

Thymus

The first lymphoid organ to appear during fetal development is the ___.

Thymus Gland

Which lymphoid organ serves as the site where T-Lymphocytes become immunocompetent T-Cells?

Lymphoid

___ tissue is predominantly reticular connective tissue.

Eosinophil

___ is NOT a lymphatic cell.

produce lymph fluid and cerebrospinal fluid

Which is not a function of lymph nodes?

Trabeculae

Lymph nodes are surrounded by a capsule from which connective tissue strands extend inward to divide the node into compartments. What is the name of these strands?

Pharyngeal Tonsil

Which tonsil is located in the posterior wall of the nasopharynx and is referred to as the adenoids if it is enlarged?

Tonsils

Of the following lymphoid organs, which are structurally simplest and lack a complete capsule?

Right upper limb, right side of the head and thorax

Lymph from what regions of the body are drained into the right lymphatic duct?

Bone Marrow

___ is not a lymphoid organ or tissue.

Plasma cells

Antibodies are produced by ___.

It has follicles similar to those of the spleen

Which of the following statements about the thymus is NOT true?

Cisterna Chyli

What is the name of the enlarged sac to which the lumbar trunks and the intestinal trunk returns lymph?

C) Pancreas

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

A) Tonsils

B) Spleen

C) Pancreas

D) Peyer's Patches

White Pulp

Which part of the spleen is the site of immune function?

Increases permeability

What is the role of the mini-valves in lymph capillaries?

b) Lymph Nodes

Which of the following is NOT a part of MALT?

a) Tonsils

b) Lymph Nodes

c) Peyer's Patches

d) Appendix

more permeable than blood capillaries

The lymphatic capillaries are ___.

Ileum of the small intestine

Peyer's patches are found in the ___.

Capillary beds

Lymphatic collecting vessels are most closely associated with ___.

a) Erythrocytes

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

a) Erythrocytes

b) Lymph Nodes

c) Lymph

d) Lymphatic Vessels

b) digestive organs

Lymph capillaries are are absent in all except ___.

a) CNS

b) Digestive Organs

c) Bones and Teeth

d) Bone Marrow

lower extremities

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

Right Jugular Trunk

___ returns lymph to the right lymphatic duct.

FALSE

T/F: The Cisterna Chyli collects lymph from the lumbar trunks, draining the upper limbs and from the intestinal trunk draining the digestive organs.

c) forming crypts that trap bacteria

Functions of the spleen include all of the following except ___.

a) storage of blood platelets

b) storage of iron

c) forming crypts that trap bacteria

d) removal of old or defective blood cells from the blood

d) smooth muscle contraction in the lymph capillary walls

Lymph transport involves all but which of the following?

a) milking action of active muscle fibers

b) lymph capillary mini-valve action

c) thorax pressure changes during breathing

d) smooth muscle contraction in the lymph capillary walls

Lymph Nodes

Which lymphoid organ serves in immune surveillance and in filtering lymph?

c) they filter lymph

Which of the following is a role of lymph nodes?

a) they produce lymph

b) the return lymph to circulation

c) they filter lymph

d) they produce red blood cells

Transporting respiratory gases

___ is NOT a function of the lymphatic system.

Bones and teeth

___ lacks lymph capillaries.

Furnish an ideal surveillance vantage point for lymphocytes and macrophages

House and provide a proliferation site for lymphocytes

___ are functions of lymphoid tissue.

Thymus

___ does not contain MALT tissue.

Islets of Langerhans

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

Thymus

Which lymphoid organ is primarily active during the early years of life?