Ch 2 Mechanisms of Disease​

List and explain 6 categories of disease​ Describe Impaired Immunity​ Summarize the aging process​ Explain the processes involved in cellular injuries and cellular change​ List and explain the causes of organism death​

What are the 6 categories of disease? (her,tra,inf/infe,hyp_pla/ne_pla,nutr_imba_, impai_ immu_)

• Heredity​

• Trauma​

• Inflammation/infection​

• Hyperplasias/neoplasms​

• Nutritional imbalance​

• Impaired immunity​

What are the top three sources of traumas in order from first to third? (mot_veh_acci_,

• Motor vehicle accidents​

• Poison​

  • Firearms​

What is the leading cause of death for 1-44 year olds

Unintentional Injuries

for impaired immunity what are common ways the immune system can fail? (all_,autim_immun_)

Allergy, autoimmunity, immunodeficiency

What exactly happens with aging? ( think of what happens to tissue and how this affects the body)

• Tissue degeneration changes functional activity to lower or lesser level​

• Body’s ability to repair and replace itself slows down with aging process​

What are the 2 main causes of cellular injury and death? ( hyp & ano_) and what do they each mean?

• Hypoxia​

• Not enough oxygen​

• Anoxia​

  • No oxygen​

What are the two causes of ellular injury and death:​?( dr. or bac. tox_ and vir_)

• Drug or bacterial toxins​

• Viruses​

What is necrosis?

cellular death

what is ischemia? (decreased what flow)

• Decreased blood flow​

What is Infarct? ( area of what kind of cells) d.

area of dead cells

what is gangrene? (saprophytic bacteria involved in what type of tissue? ( meaning of cellular death)

• Saprophytic bacteria involved in necrotic tissue​