Path 1.1 What is disease Flashcards
what is disease
disease results from the reaction from an injury but not the injruy itself
how do our bodies factor into disease
out bodies reaction to the agent can kill the patient_.our body’s reaction to injury is the diease__reaction leads to macs that release tnf, vasodialation, hypovolemic shcok, death
cell injury is both
reversible and irreversible
reversible cell injury can lead to either
recovery or adaptation eg. Picking up a weight forming muscles
irriversible cell injury can lead to either
apoptosis or necrosis
what gets sick
cells not people
A process that is ALWAYS pathological
necrosis
a process that is natural and that the body uses in cell injury
apoptosis
implications of injury
type, severity, duration, cell type (CT are tough), target of injury (protein, membrane..)
critical needs of a cell
maintaining membrane integrity, generation of energy, synthesis of structural/functional components
most poisonous toxin
diptheria toxin because it hinders ATP production by adp ribosylating EF1 and stopping protein synthesis
hardy cells
macrophages_they don’t die so in HIV they are available to screw things up. Fibrobalsts and muscle cells are also good
sensitive cells
neurons and cardiac myocytes bc they cannot divide__lots of disease involvging these wussies
larges killer in western world
ischemia of cardiac myocytes and neurons (keeping them from getting oxygen)