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Integumentary System: hair, skin, fingernails
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Skeletal System: cartilages, joint, bones
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Muscular System: skeletal muscle tissues
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Nervous System: brain, sensory receptor, spinal cord, nerves
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Endocrine System: pineal gland, pituitary gland, thyroid gland, thymus gland, adrenal glands, pancreas, testis, ovary
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Cardiovascular System: heart, blood vessels
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Lymphatic System: lymph nodes, lymphatic vessels
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Respiratory System: nasal cavity, pharynx, larynx, trachea, bronchi, lungs
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Digestive System: oral cavity, esophagus, stomach, small intestine, large intestine, rectum
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Urinary System: kidney, ureter, urinary bladder, urethra
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Reproductive System
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Male: prostate gland, testes, scrotum, seminal vesicles, penis
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Female: mammary glands, uterine tube, ovary, uterus, vagina
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2. The cardiovascular system, respiratory system, and urinary system are in charge of regulating acid-base balance in body fluid.