20 Questions
What is the primary function of tissue homeostasis?
To maintain a steady state of cell growth and death
Where do stem cells typically reside in the cell cycle?
In the quiescent phase of the cell cycle
What is a common consequence of disrupting tissue homeostasis?
Uncontrolled cell proliferation or too little cell death
What is the primary mechanism of cell injury induced by radiation?
Denaturation of proteins
What is the term for the process by which cells undergo controlled cell death?
Apoptosis
What is the primary consequence of insufficient carbohydrate intake in cellular metabolism?
Reduced ATP production
What is the primary mechanism of reperfusion injury following ischemia?
Sudden increase in oxygen levels, leading to inflammation and free radical formation
Vitamin C deficiency can lead to which of the following?
Impaired collagen cross-linking
What is the primary consequence of a calorie surplus?
Inflammation and obesity
Which of the following can cause DNA damage?
All of the above
What is the term for the increase in proliferation of epidermis after skin loss?
Hyperplasia
What is the primary difference between metaplasia and dysplasia?
Metaplasia is reversible, while dysplasia is not
What is the primary function of apoptosis in the immune system?
To kill infected cells
What is the consequence of necrosis?
Cell contents are released into the surrounding tissue
What is the primary difference between necrosis and apoptosis?
Necrosis results in cell membrane loss of integrity, while apoptosis does not
What is the mechanism of action of Novichok nerve agent?
Inhibiting acetylcholine esterase
What is the outcome of atrophy in cells?
Cells become smaller with reduced function
What is the term for the process of cells becoming bigger in response to increased demand?
Hypertrophy
What is the term for the process of cells proliferating in response to demand?
Hyperplasia
What is the term for the death of cells through a regulated process?
Apoptosis
Learn about tissue homeostasis, mitosis, apoptosis, and necrosis in this quiz. Explore the mechanisms of cell injury and the response of tissues to injury. Develop a foundation for understanding pathological responses in oral tissues.
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