Overview of Animal Physiology

Overview of Animal Physiology

• Anatomy: the body structure of living things
• Form
• Physiology: the function and mechanisms of living things
• Function
• Animal bodies have hierarchical structure
• Small < Large
• Cells < Tissues < Organs < Organ Systems
• Tissues: groups of similar cells that perform single function Example: Muscle tissue
• Organs: group of tissues that perform specific function Example: Heart
• Organ Systems: groups of organs working together for greater function Example: Circulatory system