Chapter 21 lymphatic system
Identify the structures in the pictures.
A - Lymphatic capillary B - Arteriole C - Capillary bed D - Venule
Identify the structures.
A - Lymphatic nodule B - Medullary sinus C - Hilum
Identify each structure in the picture.
A - Splenic vein B - Splenic artery C - Hilum
Identify the lymphatic tissues and organs pictured.
A - Tonsils B - Thymus C - lymph nodes (axillary) D - Spleen E - Malt (mucosa-associated lymphatic tissue) in small intestine
Identify the structures in the picture.
A - right lumbar trunk B - cisterna chyli C - left lumbar trunk D - left intestinal trunk
Identify the lymphatic vessels in the pictures.
A = Right Lymphatic duct B = Thoracic duct C = Cisterna chyli D = Lymphatic trunks E = Lymphatic vessels
Identify each organ in the picture.
A = Thyroid gland B = thymus C = Heart D = diaphragm
Identify the structures in the picture of the lymph node.
A = Valve B = Capsule C = Trabecula D = Hilum
______ vessels carry lymph into a lymph node.
Afferent
Lymph flows through a lymph node in what order?
Afferent lymphatic vessel Lymphatic sinuses Efferent lymphatic vessel
_____ filaments hold lymphatic capillary endothelial cells to surrounding tissues.
Anchoring
True or false: The spleen has an outer cortex and inner medulla.
FALSE
Reed-Sternberg cells are present in ______ lymphoma.
Hodgkin lymphoma
When blood plasma leaks out of the capillaries it is then called ______.
Interstitial fluid
Which of the following are normal constituents of lymph?
Low concentration of protein' Ions water
The function of white pulp in the spleen is to ______.
Monitor the blood for foreign materials
As the interstitial hydrostatic pressure increases, is more or less fluid driven into the lymphatic capillaries?
More
Which of the following are types of tonsils?
Palatine tonsils - each side of the soft palate Pharyngeal tonsils - in the upper part of the throat Lingual tonsils - on the back of the tongue
When tonsils are found in the posterior wall of the nasopharynx?
Pharyngeal tonsil
_____________ lymphatic structures are involved in the formation of lymphocytes.
Primary
Which of the following are considered primary lymphatic structures where lymphocytes are produced?
Thymus red bone marrow
Identify the structures.
a - Pharyngeal tonsil b - Palatine tonsil c - Lingual tonsil
Identify the microscopic structures of the thymus in the picture.
a - trabecula b - cortex c - capsule d - medulla
Identify the lymphatic structures in the picture.
a = Right Lymphatic duct b - Thoracic duct c - Cisterna chyli
The lymph node is surrounded by a tough connective tissue layer called the _________________.
capsule
Non-Hodgkin lymphomas are _______ Hodgkin lymphomas.
more common than
Lymphatic _____ are small cluster of lymphocytes that lack a complete capsule.
nodules
Lymphatic sinuses in the cortex and medulla of the lymph node _________.
provide a pathway for lymphatic flow
The _______ pulp of the spleen acts as a platelet reservoir.
red
Lymph from the green area (area A) drains into the ______________ lymphatic ducts.
right
Adult red bone marrow is found within spongy bone in which locations?
roofing bones of the skull Vertebrae Sternum
The thymus _____ after puberty.
shrinks
The ____ filters blood and acts as a blood reservoir.
spleen
Which of the following is the largest lymphatic organ in the body?
spleen
The surgical removal of the spleen is called a ______________.
splenectomy
Blood flows through the spleen in what order?
splenic artery central artery of white pulp splenic sinusoids of red pulp splenic vein
Blood drains out of the spleen through the
splenic vein
The larger lymph duct, the left lymphatic duct, is more commonly referred to as the _______________ duct.
thoracic
T-lymphocytes migrate to, and mature in the ______________.
thymus
The surgical removal of the tonsils is called a ____________.
tonsillectomy
The ________________ are masses of lymphatic tissue that protect against inhaled and ingested materials and are found within the pharynx.
tonsils
The two lobes of the thymus are divided into lobules by _____, extensions of the outer capsule.
trabeculae
Lymphatic _____ are formed from merging lymphatic vessels.
trunks
Lymph moves only one way through lymphatic vessels because of the presence of what internal structures?
valves
Lymphatic vessels resemble small ______.
veins
The spleen initiates an immune response when antigens are found in the blood. This function is associated with the _____________ pulp.
white
The right lymphatic duct drains which of the following parts of the body?
- right side of chest - right arm - right side of head and neck
The lymphatic system contains ____ lymphatic ducts.
2
Non- Hodgkin lymphomas are usually associated with abnormal _______.
b-lymphocytes
The ____ lymphatic vessels enter the lymph node and the ____ lymphatic vessels exit the lymph node.
afferent efferent
Lymph from the breast travels through the ___________ lymph nodes.
apical axillary and pectoral group
The white pulp of the spleen is associated with the ______ supply of the spleen.
arterial
Lymphoma is a _____ of the lymphatic tissues.
cancer
The lymphatic system aids the ______________ system by transporting excess interstitial fluid.
circulatory
A structure labeled A is the ______________ chyli.
cisterna
The ______ chyli carries chyle from the small intestine to the thoracic duct.
cisterna
Within a lymph node are open spaces called sinuses. In the cortex they are called ____________________ sinuses and in the medulla they are called medullary sinuses.
cortical
When excess interstitial fluid is not reabsorbed, the tissues swell causing a condition called _________________.
edema
The function of this organ is to ____________.
filter the blood for foreign matter
Match each cell type found in the thymus with its description.
immature T lymphocytes = found in the cortex mature T lymphocytes = found in the medulla epithelial cells = secrete thymic hormones
Lymph from the head and neck drains into the _________ trunks.
jugular trunks
Dietary lipids enter the lymphatic system through tiny lymph vessels called ______________.
lacteals
Lymphatic capillaries located in the GI tract are called _________.
lacteals
Lymphatic capillaries are usually ___________ in diameter than blood capillaries.
larger
Which of these secondary lymphatic structures have a complete capsule?
lymph node spleen
Place these structures in the order that lymph travels through them
lymphatic capillaries Lymphatic vessels Lymphatic trunks Lymphatic ducts
Malt Stands for "mucosa-associated ________ tissue".
lymphoid
The medulla of the lymph node is supported by connective tissue fibers called ___________________.
medullary cords
Cancerous cells can travel from one part of the body to another. This process is called.
metastasis
