Tissue Engineering Concepts and Applications

Tissue engineering, also known as regenerative medicine, aims to create functional human tissue in labs to repair or replace damaged tissues and organs. It involves four key factors: appropriate cells, supportive environments like scaffolds, essential biomolecules, and physical forces. Cells can be sourced from the patient or lab-grown lines, while scaffolds can be natural or synthetic. Biomolecules are added to enhance cell productivity, and scaffolds may dissolve or remain to support organs. Successful applications include engineered bladders, arteries, skin grafts, cartilage, and tracheas.

What is the primary goal of tissue engineering?

• To develop new medications

• To cure diseases by repairing or replacing tissues

• To create artificial limbs

• To enhance athletic performance

Which of the following is NOT a critical factor in tissue engineering?

• The right diet

• The right cells

• The right biomolecules

• The right environment

What role do physical and mechanical forces play in tissue engineering?

• They are used to harvest cells

• They provide energy to the cells

• They act as a substitute for biomolecules

• They influence the development of the cells

From where can cells be harvested for tissue engineering?

• Directly from the target organ

• From animal tissues

• From food sources

• From synthetic materials

What is the purpose of scaffolds in tissue engineering?

• To replace damaged organs

• To deliver medications

• To provide a structure for cells to grow

• To act as a source of cells

Which of the following has been successfully tissue engineered and implanted in humans?

• Lungs

• Bladders

• Hearts

• Kidneys