Chapter 23.2 Anatomy of the Lymphatic System-Lymphatic System Flashcards
What cause edema (swelling)?
Fluid accumulates in interstitial fluid
What are Causes of fluid buildup?
Increased capillary hydrostatic pressure
Kidneys not functioning properly
Valve failure – high pressure in veins
Lack of skeletal muscle contraction (clients that are bedridden)
Medications
Decreased plasma proteins
Blocked lymphatic vessels
What do Hematopoietic stem cells in bone marrow differentiate?
They differentiate into red and white blood cells, platelets
Where do B cells and T cells mature in?
B cells mature in bone marrow
T cells mature in thymus
What does Thymocytes (immature T cells) undergo?
Undergo maturation process to eliminate any cells recognize “self” antigens
What do cells that were not eliminated by Thymocytes become?
mature T cells
What do Mature B and T cells that are “tolerant” of self-antigens migrate to?
Migrate to lymph nodes
What do Mature B and T cells that are “tolerant” of self-antigens only react to?
specific infections that match their receptors
What do Lymph nodes containing immune cells Recognize & fight?
Recognize & fight infections, some toxins, and dead cells carried in lymph
Where are Lymph nodes located?
in larger numbers in areas where microorganisms can enter body
E.g., ears, mouth, lungs, urogenital region, digestive tract, and mammary glands
What do Red pulp contain?
contains macrophages, red blood cells, platelets
What location is red pulp?
location of breakdown of old red blood cells
What does white pulp contain?
lymphocytes, macrophages, and dendritic cells
What is white pulp involved in?
involved in adaptive immune response
What are Lymphatic nodules similar to?
lymph nodes except not surrounded by capsule
