Nervous - The brain and spinal cord, Cardiovascular - The heart and blood vessels , Respiratory - The lungs and airways , Endocrine - The pancreas and glands , Lymphatic - The spleen and nodes , Reproductive - Sexual organs , Muscular - Muscles and tendons , Skeletal - Bones and cartilage , Urinary - Kidneys and Bladder , Digestive - Stomach and Intestines , Integumentary - Skin and hair follicles ,

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