Wednesday-bio 1080

First line of defense

Physical barriers

Second line

Innate internal defenses

Third line

adaptive immune response.

Innate immunity

Fast, non-specific

Adaptive immunity

Specific, memory-based

Neutrophils

First responders

Macrophages

Phagocytes that consume almost anything and help activate adaptive immunity

Natural killer cells

Kill abnormal cells

Complement system

Helps destroy pathogens

Inflammation signs

Redness, heat, swelling, pain

Acute inflammation

Short-term response

Chronic inflammation

Long-term, harmful

Parenchymal cells

primary functional cells of an organ, carries out its specialized tasks.

Stromal cells

structural support, regulate tissue environments, and facilitate repair and communication within organs.

LSDS functions

Defense, repair, regeneration

MHC markers

Surface proteins used in recognition of self and non-self

Helper T cells

Activate immune response

Cytotoxic T cells

Kill infected cells

B cells

Produce antibodies

Antibodies

Bind antigens and neutralize

Memory cells

Faster future response

Secondary response

Stronger and faster

T regulatory cells

Suppress immune response