Cell injury/changes
What does the cell do when its integrity is threatened by toxins or infection?
Draw on cellular reserves
Adapt through change
Is illness subjective or objective?
it is subjective
what is infection?
The process that occurs when pathogens invade and multiply in the body
How is cancer classified?
Classified by the tissues or blood cells where the mutation originates from
What are at least 2 types of cell injury?
toxin injury, infectious/inflammatory, physical and deficit injury
what is the difference between disease and illness?
disease : occurs when homeostasis is not maintained and is based on symptom and signs
illness: state of not feeling well
name 4 types of pathogens
virus, bacteria, fungi, parasite
Cancer cells originate from a...
mutation in a single cell
What is Atrophy and name one cause
The reversible reduction of the cell
due to... lack of use, lack of blood flow, malnutrition, lack of hormone release from endocrine glands (limited endocrine stimulation), denervation and more
In what stage of disease is a disease at its fullest intensity?
ACUTE PHASE
what does a virus do once its in contact with host cell?
inject its genetic material inside of the cell -- causing infection
Name two routes cancer cells to spread through the body
seeding, nervous, lymphatic
Which adaptive cell change can lead to cancer?
Dysplasia due to irregular cell growth
Medulla Oblongata, Hypothalamus, Reticular formation
What are opportunistic infections?
Infections that strike people with weakened immune systems (someone that is immunosuppressed)
Explain immunosurveillance theory
our body is continuously developing cancer cells, BUT the immune system recognizes them as foreign and destroys them