Lymphatic System Flashcards
Lymph vessels reabsorb what fluid from the tissues and return it to the venous circulation?
Interstitial fluid
What are the components of lymph.
Interstitial fluid
Foreign material
Solutes
Trace the path of lymph from the time it leaves the interstitial spaces to the time it enters the blood
Lymphatic capillaries->afferent lymphatic vessels->lymph nodes->efferent lymphatic vessels->lymphatic trunks->lymphatic ducts
Which lymphatic ducts receive lymph from the body regions?
Right lymphatic duct: right upper limb and right side of head and neck.
Thoracic duct: left side of head and neck, left side of body and both lower legs
The spleen functions to filter?
Blood
The white pulp of the spleen contains?
Lymphatic cells
The red pulp of the spleen contains?
Macrophages
The red pulp serves as?
Reservoir for platelets
What % of the fluid that enters the interstitial space is absorbed into lymphatic capillaries?
15
The majority of the lymph is composed of?
Water and dissolved solutes
Lymphatic capillaries are found in what tissue?
Areolar connective tissue
Digestive tract
Blood capillary networks
In an adult where is the red bone marrow found in the body?
Flat bones of the skull and sternum
Vertebrae and ribs
Proximal epiphyses of each humerus and femur
Besides filtering blood for foreign materials and phagocytosis of old defective erythrocytes, the spleen is also involved in what other major function?
Reservoir for platelets and erythrocytes
Peyer patches are large accumulations of MALT located only in the?
Small intestine
Lymphatic capillaries located in the GI tract are called?
Lacteals
Lymphatic ducts empty into?
Veins
What is the function of lymphatic nodules?
Defend against infection in the area.
Which is not a function of lymph node: A. Production of lymphocytes B. Production of red blood cells C. Filtration of lymph D. Initiation of an immune response
B. Production of red blood cells
Lymphatic nodules are encapsulated lymphatic organs: True or False?
False
The formation of lymph increases as a result of?
Increasing hydrostatic pressure in the tissue fluid.
The primary function of lymph include?
Returning proteins to bloodstream and transporting foreign particles to the lymph nodes.
If an individual has an infected cut on their thigh, in which region are the lymph nodes most likely to enlarge?
Inguinal region
Which are primary and secondary lymphatic structures?
Primary: red bone marrow and thymus
Secondary: tonsils, lymph nodes, spleen, and MALT: mucosa associated lymphatic tissue
