Immunology I Flashcards

Flashcards covering key vocabulary and concepts from the Immunology I lecture notes, focusing on Innate Immunity.

Susceptibility

Lack of resistance to a disease.

Immunity

Ability to ward off disease.

Innate immunity

Defenses against any pathogen.

Adaptive immunity

Immunity or resistance to a specific pathogen.

Toll-like receptors (TLRs)

Receptors on host cells that attach to pathogen-associated molecular patterns (PAMPs).

Epidermis

Consists of tightly packed cells with Keratin, a protective protein.

Mucous membranes

Mucus traps microbes and Ciliary escalator transports microbes trapped in mucus away from the lungs.

Ciliary escalator

Transports microbes trapped in mucus away from the lungs.

Lacrimal apparatus

Washes eye.

Saliva

Washes microbes off.

Urine

Flows out and removes microbes.

Vaginal secretions

Flow out and removes microbes.

Phagocytosis

Ingestion of microbes or particles by a cell, performed by phagocytes.

Fever

Abnormally high body temperature.

Interferons (IFNs)

IFN-a and IFN-b cause cells to produce antiviral proteins that inhibit viral replication; IFN-g causes neutrophils and macrophages to phagocytize bacteria.