Lymphatic System Flashcards
primary lymphoid organs are the __________,
in which blood and immune cells are produced,
Red Bone Marrow
where T-lymphocytes mature
Thymus
major secondary lymphoid organs; they filter out pathogens and maintain the population of mature lymphocytes
Spleen & Lymph nodes
Lymphatic tissue in small intestine
Peyer’s Patches
Functions of Lymphatic System
Fluid Balance
Fat Absorption
DEFENSE
associated with left side of cervical and upper limb and the rest of body regions
Thoracic Duct
associated with right side of the cervical and upper limbs only
Right Lymphatic Duct
fluid that enters lymphatic capillaries composed of water and some solutes
Lymph
Organs and Components of Lymphatic System
Lymphocytes Lymphatic Vessels Lymph nodes Tonsils Spleen Thymus Gland
carries fluid in one direction from tissues to circulatory system
Lymphatic Capillaries
- tiny, closed-ended vessels
- fluid moves from blood capillaries into tissue spaces
resemble small veins
where lympathic capillaries join
ONE WAY VALVES
Lympathic Vessels - pumpless
where lymphatic vessels from right upper liimb and righ head, neck, chest empty to subclavian vein
Right Lymphatic Duct
rest of body empties from lymphatic vessels to left subclavian vein
Thoracic Duct
T or F
Lymph vessels valves are overlapping epithelial cells
T
Lymphatic Organs
Tonsils
Lymph Nodes
Spleen
Thymus Gland
bilobed gland
located in mediastinum behind the sternum
PRODUCES an MATURES Lymphocytes
Thymus gland
- stops growing at age 1
- decrease in size at age 60
size of clench fist (like heart)
located in the abdomen
FILTERS THE BLOOD AND DETECTS AND RESPOND TO FOREIGN SUSTANCES
Spleen -“Blood Reservoir”
- destroys old blood cells
rounded structures that vary in size
located near lymphatic vessels
found in groin, armpit, neck, etc
Lymph Nodes
-lymph passes through lymph nodes before entering blood
palatine tonsils are on the each side of oral caviti
T or F?
True
AKA ngala ngala
near internal opening of nasal cavity (adenoid)
Tonsils
-forms protective ring of lymphatic tissue around nasal and oral cavities
posterior surface of tounge
Lingual Tonsils
T or F
lymph nodes moves through and immune system activated if foreign substances are detected
Lymph Nodes
-removal of microbes by macrophanges
