5.1 Anatomy of the Lymphatic System Part 2 Flashcards
Where are lymph nodes found?
at the junction of lymphatic vessels
What is a lymph node encapsulated in?
fibrous connective tissue with many incoming and fewer outgoing lymphatic vessels
What are the incoming lymphatic vessels to a lymph node known as? Outgoing?
afferent
efferent
What is the interior of the lymph node divided into?
nodules
What do the nodules of the lymph nodes contain?
lymphocytes
macrophages
What is the function of the lymph node?
filtering center that rids the lymph of infectious organisms and debris
What are the sinuses in the lymph node?
cortical
subcapsular
medullary
Where are the main groups of lymph nodes located?
groin
armpit/axillary region
Where is the spleen located?
upper left abdomen
What is the function of the spleen?
extract old or defective blood cells and platelets and remove debris, foreign matter, bacteria, viruses, and toxins
What is the spleen encapsulated in?
thin, fragile fibrous connective tissue
What are the vessels associated with the spleen?
incoming splenic artery and outgoing splenic vein
What is the interior of the spleen divided into?
lobules
What do the lobules of the spleen contain?
lymphocytes and macrophages
How does blood enter the spleen?
splenic artery
How does blood leave the spleen?
splenic vein
Where does the splenic vein flow to?
hepatic portal vein
What is the function of the hepatic portal system?
carries blood drained from the spleen, intestines, stomach, and pancreas to the liver
What happens to the blood that is brought from the hepatic portal system to the liver?
detoxified before returning to general circulation
Where is the thymus gland located?
anterior surface of the heart
