(Blank)
What is the lymphatic system composed of?
Lymph vessels and lymphoid structures
True or false, the lymphatic system has a pump?
False
What are the two major lymphocytes?
B and T
What is the largest lymphoid organ?
Spleen
What are the three types of tonsils?
Pharyngeal, palatine, lingual
Lymph originates from ______ _______ and _____ ______ and moves passively into the lymphatic capillaries
Lymphatic vessels drain into lymphatic ____
Trunks
What is hematopoiesis?
Production of formed elements
White pulp vs red pulp
White- clusters of T and B lymphocytes and macrophages
Red- erythrocytes, platelets, macrophages, and B lymphocytes
What does MALT stand for?
Mucosa-associated lymphoid tissue
About ___% of the fluid that enters the interstitial space is not reabsorbed back into the blood capillaries
15
Lymphatic trunks drain into the largest vessels called lymphatic ______
Ducts
What is the main job of lymph nodes?
Filter lymph and remove any unwanted substances
____ pulp monitors for foreign substances
White
Collection of lymphoid nodules in the mucosa of the small intestines (specifically the ileum) are called
Peyer's patches
Once inside the lymph vessels, the fluid is now called
lymph
Primary lymphoid structures are involved in _____ and _____ of lymphocytes while secondary lymphoid structures are ____ involved.
Formation and maturation; not
What is the capsule of the lymph node made of?
Dense irregular connective tissue
General flow of blood through the spleen:
Splenic artery - _____ artery (white pulp) - splenic sinusoid (red pulp) - _____ - splenic ____
Central
Venules
Vein
Infection, inflammation, and cancer
Lymphadenopathy
Lymphatic vessels are formed when _____ _____ merge together
Lymphatic capillaries
Where is red bone marrow located?
Within trabeculae of spongy bone within the skeleton
Lymph node enters through _____ vessels and drain out through _____ vessels
Afferent; efferent
Where are tonsils found and what is their function?
Pharynx and oral cavity; protect against inhaled or ingested foreign substances
What infections are common for enlarging nodes?
Strep, mono, HIV, and infected skin wounds