Lymphatic System and Immunity

These flashcards cover key terms and concepts related to the lymphatic system and immunity, facilitating better understanding and retention for the exam.

Lymphatic System

A network that helps recycle fluids lost from the cardiovascular system and transports pathogens to lymph nodes.

Lymph Nodes

Tiny, oval-shaped structures that produce lymphocytes and filter out harmful substances.

Thymus Gland

An organ that produces T-lymphocytes and is considered an endocrine gland.

Tonsils

Masses of lymphatic tissue that produce lymphocytes and filter bacteria.

Spleen

An organ that filters pathogens from the blood, stores red blood cells, and produces lymphocytes and monocytes.

INTERSTITIAL FLUID

Fluid found in the spaces between cells, also known as tissue fluid.

LYMPH

Straw-colored fluid similar to plasma, consisting of water, lymphocytes, and nutrients, but no red blood cells.

Passive Acquired Immunity

Immunity obtained by injecting antibodies, providing immediate but short-lived protection.

Natural Acquired Immunity

Immunity resulting from recovering from a disease, leading to the production of antibodies.

Hypersensitivity

An abnormal immune response where the body reacts negatively to foreign substances.

Anaphylaxis

A severe systemic hypersensitivity reaction marked by rapid onset of symptoms and potential fatality.

Infectious Mononucleosis

A viral infection causing fever and enlarged lymph nodes, commonly spread through kissing.

AIDS

Acquired Immunodeficiency Syndrome caused by HIV, leading to a compromised immune system.

Standard Precautions

Guidelines to prevent infection, particularly in healthcare settings, including handwashing and use of protective gear.