Returns interstitial fluid and leaked plasma proteins back to the blood

Pulsations of nearby arteries and Contractions of smooth muscle in the walls of the lymphatics.

produce stroma that supports other cells in lymphoid organs.

It functions strictly in T lymphocyte maturation.
It does not directly fight antigens.

resistance present at birth;
not dependent on prior exposure to an
antigen

Specialized lymph capillaries present in intestinal mucosa

T Cells And B Cells

Lymphoid organs of the body

The Lymphoid system

body’s ability to recognize and
remember specific antigens in an immune response:

Formed by one of the largest collection ducts

The main fighters of the immune system

Largest Lymphoid Organ

produce antibodies;
mature in the bone marrow

Mass of lymphatic tissue in the nasopharynx

Drains the right upper arm and the right side of the head and thorax.

fights foreign substance and helps and activate T cells

Cleanses the blood of aged cells and platelets and debris.

attack bacteria and
foreign cells; originate in the thymus gland

Protein produced by B cells to destroy antigens

arises from the cisterna chyli and drains the rest of the body

Cells that capture antigens and deliver them to lymph nodes.

simplest lymphoid organ

the body’s ability to resist foreign
organisms and toxins that damage tissues and
organs; can be natural or adaptive

Lymph nodes in the armpit