Lymph fluid and urine

Celebral fluid and lymph fluid

Blood and lymph fluid

Increased number

Decreased number

Average amount

Use non-specific mechanisms

Against cells invaded by cancer cells/viruses

Against cells invaded by bacteria

Use specific mechanisms

keratin

Interferon

Perforin

Cause apoptosis of target cell

Makes pores in target cell's membrane

Bind with receptors on pathogens

The cell can release its contents through the pores

Other molecules e.g. proteases enter and cause apoptosis

Other molecules e.g. proteases enter and cause cell lysis

Any pathogen inside the cell would die as well, instead of being released

Pathogens inside the cell are destroyed but the cell remains alive

Pathogens inside the cell are released, instead of being destroyed

Increase

Decrease

Stay the same

Increases number of cytokines

Reduces number of cytokines that can activate lymphocytes

Reduces number of cytokines that can activate phagocytes

Inflammation in muscle due to damaged tissues

Inflammation in skin due to excessive heat

Both cause an increase in the number of cells involved in immune response

Both known to lead to inflammatory responses

Both cause secretion of adrenaline and cortisol, which suppress immune system

No friction

Wear and tear

They will break

Numbness

Restricted movement

Paralysis

Inflammation

Pain