Circulatory System - Transports blood, nutrients, oxygen, carbon dioxide, and hormones throughout the body. It includes the heart, blood, and blood vessels, Digestive System - Breaks down food into nutrients, which the body uses for energy, growth, and cell repair. It includes organs such as the mouth, esophagus, stomach, intestines, liver, and pancreas., Endocrine System - Produces and secretes hormones that regulate the body's growth, metabolism, and sexual development and function. Major glands include the pituitary, thyroid, and adrenal glands., Urinary System - Eliminates waste products from the body and regulates water and salt balance. It includes the kidneys, ureters, bladder, and urethra, Immune System - Defends against pathogens and disease. It includes white blood cells, lymph nodes, and other components like the spleen and thymus, Integumentary System - Protects the body from environmental damage, regulates temperature, and provides sensory information. It consists of the skin, hair, nails, and associated glands, Lymphatic System - Returns excess fluid from tissues to the bloodstream, absorbs fats from the digestive system, and aids the immune system. It includes lymph nodes, lymph vessels, and the spleen., Muscular System - Enables movement of the body and internal organs, maintains posture, and produces heat. It includes skeletal, smooth, and cardiac muscles, Nervous System - Controls and coordinates body activities by transmitting signals between different parts of the body. It includes the brain, spinal cord, and peripheral nerves, Reproductive System - Produces gametes (sperm and eggs) and hormones, and in females, supports the development of offspring. It includes organs such as the ovaries, uterus, and testes, Respiratory System - Facilitates gas exchange, bringing oxygen into the body and removing carbon dioxide. It includes the nose, trachea, lungs, and diaphragm, Skeletal System - Provides structure, supports and protects internal organs, facilitates movement, and produces blood cells. It consists of bones, cartilage, ligaments, and joints,

Human Body Systems

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