Process of viewing.

Process of viewing.

• A. Endoscopy
• B. Endocytosis
• C. Endocarditis
• D. Endoderm

Answer: (A)

Viewing internal structures is called endoscopy. An endoscope—a flexible tube equipped with a light and camera—is inserted into a body cavity or organ to visualize its lining and sometimes perform interventions. This technique is commonly used for the digestive system (gastroscopy, colonoscopy), the airways (bronchoscopy), and other areas where direct visualization helps diagnose or treat conditions. The other terms refer to different ideas: endocytosis is the cellular process of taking in material from outside the cell, endocarditis is an infection of the heart’s inner lining or valves, and endoderm is the innermost germ layer in early embryonic development.

Viewing internal structures is called endoscopy. An endoscope—a flexible tube equipped with a light and camera—is inserted into a body cavity or organ to visualize its lining and sometimes perform interventions. This technique is commonly used for the digestive system (gastroscopy, colonoscopy), the airways (bronchoscopy), and other areas where direct visualization helps diagnose or treat conditions. The other terms refer to different ideas: endocytosis is the cellular process of taking in material from outside the cell, endocarditis is an infection of the heart’s inner lining or valves, and endoderm is the innermost germ layer in early embryonic development.