class 2 (ch 3, cellular adaptation, injury and death).

Question 1

where to all forms of disease begin?

Answer 1

alterations to cells

Question 2

what is adaptation?

Answer 2

happens to maintain homeostasis. it is reversible, structural, or functional response both to normal or physiologic conditions and to advers or pathologic conditions.

Question 3

cellular adaptations to advers conditions

Answer 3

they are usually only temprarily successful.

Question 4

what does altered cellular and tissue biology result from?

Answer 4

adaptation, injury, neoplasia, aging or death.

Question 5

injury may be what?

Answer 5

reversible or irreversible

Question 6

what are the types of injury classifications?

Answer 6

chemical, hypoxic, free radical, intentional, unintentional, immunologic, infection, and inflammatory.

Question 7

what is atrophy?

Answer 7

a decrease or shrinkage in cellular size. it can affect any organ but is most common in skeletal muscle , the heart, secondary sex organs, and the brian.

Question 8

physiologic atrophy?

Answer 8

occurs with early development

Question 9

pathologic atrophy?

Answer 9

result of decreases in workload, pressure, use, blood supply, nutrition, hormonal stimulation, and nervous stimulation.

Question 10

ubiquitin-proteosome pathway

Answer 10

primary pathway of protein catabolism and catabolism involves proteosomes