Tissue Regeneration and Neoplasia Quiz

Healing is defined as…

• Formation of clot in wound

• Replacement of destroyed tissue by living tissue

• Invasion of microbes into wound

• Removal of dead tissue by macrophages

Regeneration means…

• Replacement of lost tissue by scar

• Replacement of destroyed tissue by the same type of cells

• Replacement of necrotic cells by fat

• Healing with infection

Fibrosis (repair by scar) means…

• Replacement of damaged cells by identical tissue

• Replacement of tissue by supportive fibrous tissue

• Healing without scar

• Replacement of tissue by fat cells

In the central nervous system, repair occurs by…

• Regeneration of neurons

• Gliosis (fibrosis by glial tissue)

• Fat deposition

• Hemorrhage

Labile cells are characterized by…

• Non-dividing nature

• Continuous division under normal conditions

• No regeneration

• Permanent inability to proliferate

Which of the following is an example of labile cells?

• Hepatocytes

• Skeletal muscle cells

• Surface epithelium

• Neurons

Stable cells are characterized by…

• Continuous division throughout life

• Non-dividing and no regeneration

• Divide only in response to injury

• Derived only from neurons

Hepatocytes are classified as…

• Labile cells

• Stable cells

• Permanent cells

• None

Which of the following are permanent cells?

• Fibroblasts

• Nerve cells

• Endothelial cells

• Renal tubular cells

Muscle cells belong to which category?

• Labile

• Stable

• Permanent

• None