Unit 7C Flashcards
Lymphatic system
Composed of organs and tissue that collect the fluid that leaks from blood and returns it to the body.
OPEN SYSTEM
Cardiovascular system
Composed of heart,blood,BV
Has closed system
The lymphatic system is also part of the body’s……
Defenses against disease
Define blood
Fluid that carries gases, nutrients, and wastes throughout the body
Define closed system
The blood is carried in vessels that form a closed loop
Define lymph
The leaked fluid
Define open system
The lymph can move in and out of the vessels
The lymphatic system is a place where white blood cells….
Mature
Lymph nodes
Small bean shaped organs found in armpits, neck, and groin. Remove pathogens and dead cells from lymph
Lymph vessels
Thin walled vessels that carry lymph back to lymph nodes
Bone marrow
Produces white blood cells
Spleen
Largest lymphatic organ; stores WBC & allows them 2 mature
Tonsils
Small lymphatic vessels at back of throat and tongue which contain WBCs to trap pathogens
Thymus
Organ in chest where some WBCs finish devolving
Elephantiasis or lymphatic filariasis
Caused by parasitic round warms which are transmitted by mosquitoes. Inflammation of the lymphatic vessels causing extreme enlargement of the affected area
Lymphedema
Swelling of body tissues due to blockage or injury to the lymph vessels which are unable to drain the lymph causing swelling
