Lymphatic and Immune Systems Review

Flashcards covering key vocabulary and concepts from the Lymphatic and Immune Systems lecture.

Lymph

A fluid similar to plasma, but without the plasma proteins.

Lymphatic vessels

The network that carries lymph from peripheral tissues to the venous system.

T-cells

Thymus dependent lymphocytes involved in cell-mediated immunity.

B-cells

Bone marrow derived lymphocytes that differentiate into plasma cells to secrete antibodies.

Natural Killer (NK) cells

Cells responsible for immune surveillance and attacking abnormal cells.

Thoracic duct

Main lymphatic vessel that receives lymphatic fluid from the lower body and left side of the upper body.

Right lymphatic duct

Receives lymphatic fluid from the right side of the upper body and drains into the right subclavian vein.

Interferons

Proteins that signal to other cells that viruses are present and stimulate antiviral protection.

Complement

A group of proteins that enhance the action of antibodies by stimulating inflammation and attracting phagocytes.

Phagocytes

Cells that engulf and digest debris and pathogens.

Specific immunity

An immune response that is tailored to attack a specific invader.

Antigen presentation

The process where antigen presenting cells display an antigen to T-cells and B-cells.

Memory cells

Lymphocytes that remain in the circulation to provide a rapid response to previously encountered antigens.

Autoimmune disorders

Conditions where the immune system mistakenly attacks the body's own cells.

Anaphylaxis

A severe and potentially life-threatening allergic reaction.

Passive immunity

Immunity acquired by receiving antibodies from another organism.

Active immunity

Immunity developed through direct exposure to an antigen and the body's response.

Peyer’s patches

Concentrations of lymphoid tissue in the wall of the intestines.

Spleen

An organ that filters blood, removes abnormal blood cells, and initiates immune responses.

Necrosis

Local tissue destruction in the area of injury.