Basic Lymphatic
Primary function of the lymphatic system is:
Return excess tissue fluid to the bloodstream
Inflammation is characterized by 3 items-
Pain, swelling, redness
What is the purpose of Lymph nodes?
To filter lymph
Which is not a lymphatic organ? Spleen; Thymus; Tonsils; Thyroid
Thyroid
What is an antigen?
A molecule that triggers and immune response
Macrophages primary function -
Engulf pathogens
Lymphatic system works most closely with what other body system?
Circulatory system
Lymph originates from
Interstitial Fluid
The right lymphatic duct drains lymph from the:
Right upper quadrant
The spleen filters what?
Blood
T-cells mature in the -
Thymus
Artificial active immunity results from -
Vaccination
The lymphatic system helps absorb -
Fats from the digestive tract
Edema results from -
Excess tissue fluid
The largest lymphatic vessel in the body is:
The thoracic duct
The thymus is most active during what age?
Childhood
B-cells mature in the -
Bone Marrow
Memory cells are important because they -
Allow quicker response upon re-exposure
Lymphatic capillaries are different from blood capillaries b/c -
They are closed ended
How is lymph pumped through the lymphatic system AND what direction is it pumped?
By skeletal and smooth muscles that contract and pump the fluid back. It is pumped toward the heart.
Lacteals are found in the -
small intestine
The tonsils are part of which line of defense -
First
Antibiotics are produced by -
Plasma Cells
The immune response involving T-cells is called -
cell-mediated immunity
Describe the pathway of lymph from the tissues back to the bloodstream?
Interstitial fluid to lymph capillaries to larger lymph vessels to lymph nodes to the thoracic duct or right lymph duct to subclavian veins to bloodstream.
How does the lymphatic system support the circulatory system?
It returns excess tissue fluid to the bloodstream - maintaining blood volume and preventing edema.
What lymphatic tissue/organ shrinks with age?
Thymus gland
The appendix contains
Lymphatic tissue
Natural immunity occurs when?
When you inherit antibodies from your mother.
What produces antibioties
B-cells