Introduction to Anatomy, Physiology, Integumentary, and Skeletal Systems

Fundamental Definitions of Anatomy and Physiology

• Anatomy: The study of the structures of the body, specifically focusing on their physical structure.
• Physiology: The study of the function of organic structures within the body.
• Structure and Function Interdependence: Structure is impacted by function, and function always dictates structure in biological systems.
• Homeostatic Role: Organ systems are integral for maintaining homeostasis throughout the body.

Integumentary System

• Primary Components: Consists of the skin, hair, nails, and sweat glands.
• Immune Protection: Functions as a vital part of the immune system by protecting the body through both physical and chemical mechanisms:
  • Physical Defense: Acts as a physical barrier protecting the inner body.
  • Chemical Defense: Secretes chemical substances to defend the body.

Skeletal System

• Ligaments: Connective tissue structures that connect bone to bone.
• Organ Protection: Protects vital internal organs from injury.
• Blood Production: Produces blood cells within the bone marrow.