Immune System Flashcards
How can a virus cause disease?
Multiply inside cells. So…
Cells can’t work normally- that tissue doesn’t work properly
Cells may be destroyed
May release toxins
What do micro organisms have that alert white blood cells to their foreign nature?
Antigens
Difference between contagious and infectious?
Infectious- spread person to person
Contagious- spread by touch (door handle etc)
What do vaccinations cause?
Manufacture of memory cells
What do memory cells do?
Enable future antibody production to the pathogen to occur sooner faster and in greater quantity
What are platelets?
Cell fragments made in bone marrow
What do platelets do?
Turn soluble protein fibres into insoluble fibrin
(Long strands)
Forms clot, dissolves when healed
What does T stand for in T-cells?
Thymus
