Histology encompasses which of the following?

• A. Tissues, Bruises, Birthmarks
• B. Bones and Teeth
• C. DNA Sequences
• D. Glands

Answer: (A)

Histology is the study of tissues at the microscopic level—the way cells come together with their supporting matrix to form the various tissues that make up organs. It’s about understanding normal tissue architecture and how tissues look when affected by injury or disease.

The option that fits best centers on tissues and tissue-level changes, including examples like bruises and birthmarks. Bruises involve changes in tissue components after injury, and birthmarks are patterns in skin tissue arising from vascular or pigment-related alterations. Both illustrate the kind of tissue structure and pathology histology analyzes.

Other choices miss the broader scope: bones and teeth are specific skeletal structures; DNA sequences belong to genetics and molecular biology; glands are just one tissue type and don’t capture histology’s wider focus on tissues as a whole.