Cellular Growth and Differentiation (P) Flashcards
What is cell growth?
The cell itself is only growing
What is cell proliferation?
The cell is proliferating (increasing in #)
What is cell differentiation?
A sp cell is differentiating (from same type of cell)
Hyperplasia / hypergenesis came from what Greek words?
Huper ‘over’ + plasis ‘formation’
What is hyperplasia / hypergenesis (/ what is its effect)?
It is an enlargement of an organ or tissue
What is the cause of the enlargement of an organ (in hyperplasia)?
It is caused by an increase in the amt of organic tissue
The increase in the amt of organic tissue (in hyperplasia) results from what?
It results from cell proliferation
True or False
Certain tissues that have hyperplasia may cause disease
True
Pathologic hyperplasia in tissues that may cause disease may occur due to what?
1) Infection
2) Physiological stress or trauma
3) Abnormal lvls of particular hormones such as:
a. Estrogen
b. ACTH
c. Cortisol
What are the exs of hyperplasia?
1) Benign prostatic hyperplasia
2) Cushing’s disease
3) Congenital adrenal hyperplasia
4) Endometrial hyperplasia
What is hypertrophy?
It is the increase in the size of cells (or tissues) in response to various stimuli
Provide an ex of hypertrophy
Muscle dystrophy
What is atrophy?
It is the decrease in size of a body part, cell, organ, or other tissue
What is the principle of atrophy in terms of the atrophied part?
Atrophy implies that the atrophied part was of a size normal for the individual, considering age and circumstance, prior to diminution
Provide an ex of atrophy
Muscle atrophy
