Anatomy is the branch of biology concerned with the study of the structure of organisms and their parts. Physiology is the scientific study of the normal function in living systems with a focus on how organisms, organ systems, organs, cells, and biomolecules carry out the chemical or physical functions in a living system. Anatomy and physiology make a natural pair of related disciplines that are often studied together.
- Unit 1 provide students with a basic understanding of human anatomy and physiology, including its language, the levels of organization, and the basics of chemistry and cell biology. These chapters provide a foundation for the further study of the body. They also focus particularly on how the body’s regions, important chemicals, and cells maintain homeostasis.
- In Unit 2, students explore the skin, the largest organ of the body, and examine the body’s skeletal and muscular systems, following a traditional sequence of topics. This unit is the first to walk students through specific systems of the body, and as it does so, it maintains a focus on homeostasis as well as those diseases and conditions that can disrupt it.
- Unit 3 helps students answer questions about nervous and endocrine system control and regulation. In a break with the traditional sequence of topics, the special senses are integrated into the chapter on the somatic nervous system. The chapter on the neurological examination offers students a unique approach to understanding nervous system function using five simple but powerful diagnostic tests.
- In Unit 4, students examine the principal means of transport for materials needed to support the human body, regulate its internal environment, and provide protection.
- In Unit 5, students discover the interaction between body systems and the outside environment for the exchange of materials, the capture of energy, the release of waste, and the overall maintenance of the internal systems that regulate the exchange. The explanations and illustrations are particularly focused on how structure relates to function.
- Unit 6 examine the male and female reproductive systems, describe the process of human development and the different stages of pregnancy, and end with a review of the mechanisms of inheritance.