Immunology Exam 1

Hematopoiesis

The generation of blood cells in the bone marrow.

Innate Immune System

The body's first line of defense with immediate response and no memory.

Adaptive Immune System

The immune arm featuring memory, comprising B cells and T cells.

Pathogen

A foreign agent entering the body that elicits an immune response.

Antigen

Any agent, foreign or self, that elicits an immune response.

Physical Barriers

Skin, mucus, and the respiratory and intestinal tracts.

Chemical Barriers

Defensins, complement proteins, and antimicrobial peptides.

Antibody Functions

Neutralization, opsonization, and complement activation.

T Cell Recognition

T cells recognize MHC molecules presented by APCs.

Antibody Recognition

Antibodies recognize specific targets called epitopes.

Primary Lymphoid Tissues

Bone marrow and thymus.

Autoinflammatory Disease

Innate immune responses attacking oneself due to improper regulation.

Complement System

A complex network of over 30 plasma proteins that respond to foreign antigens.

Respiratory Burst

A process using ROS and RNS, such as superoxide and hydrogen peroxide, to kill phagocytized pathogens.