Solutions to the Study Guide for Module #12

A collection of vocabulary flashcards based on immunology and lymphatic system concepts from the lecture notes.

Lymph tissue

Groups of lymphocytes and other cells which support the lymphocytes.

Lymph nodes

Encapsulated masses of lymph tissue found along lymph vessels.

Lymph

Watery liquid formed from interstitial fluid and found in lymph vessels.

Edema

A buildup of excess fluid in the tissues, which can lead to swelling.

Immunological defense

The process by which the body protects itself from pathogenic invaders such as bacteria, fungi, parasites, and foreign substances.

Diffuse lymphatic tissue

Concentrations of lymphatic tissue with no clear boundaries.

Lymph nodules

Lymphatic tissue arranged into compact, somewhat spherical structures.

Innate immunity

An immune response that is the same regardless of the pathogen or toxic encountered.

Acquired immunity

An immune response targeted at a specific pathogen or toxic.

Complement

A series of 20 plasma proteins activated by foreign cells or antibodies to those cells, which lyse bacteria, promote phagocytosis, and promote inflammation.

Interferon

Proteins secreted by cells infected with a virus to stimulate nearby cells to produce virus-fighting substances.

Pyrogens

Chemicals which promote fever by acting on the hypothalamus.

Humoral immunity

Immunity which comes from antibodies in blood plasma.

Cell-mediated immunity

Immunity which comes from the actions of T-lymphocytes.

Interstitial fluid

Fluid that becomes lymph as soon as it enters the lymph vessels.