Innate Immune System

These flashcards cover key terms and concepts related to the innate immune system as discussed in the lecture.

Innate Immune System

The body's first line of defense against pathogens, consisting of non-specific responses.

Phagocytes

White blood cells that engulf and digest pathogens and debris.

Natural Killer Cells

A type of lymphocyte crucial for killing virus-infected cells and tumors.

Inflammation

The body's defensive reaction to trauma or infection characterized by pain, redness, immobility, swelling, and heat.

Antimicrobial Proteins

Proteins, such as interferons and complement proteins, that help to destroy pathogens.

Complement System

A group of proteins that enhance the body's ability to immune response through opsonization, inflammation, and formation of membrane attack complexes.

Fever

Abnormal elevation in body temperature that promotes interferon activity and inhibits replication of pathogens.

Leukocytosis

An increase in white blood cells, often in response to infection or inflammation.

Margination

The process by which neutrophils adhere to the walls of capillaries in the injured area.

Diapedesis

The movement of white blood cells through the capillary walls to the site of injury or infection.