Topic overview

Start with the big picture

Anatomical study follows structural organization across multiple levels, from molecules and cells to tissues, organs, systems, and the whole body. Its main divisions include gross anatomy, which examines structures visible without a microscope; microscopic anatomy, including histology and cytology; and developmental anatomy, which traces structural change from the zygote through postnatal growth. Other approaches focus on body regions, systems, surface landmarks, imaging, or clinical application. Comparative anatomy considers similarities and differences among species, while neuroanatomy focuses on the nervous system. Together, these perspectives help learners describe structure and understand how anatomical knowledge supports clinical interpretation, diagnosis, and procedures.