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Learn how the integumentary, skeletal, muscular, digestive, excretory, urinary, cardiovascular, respiratory, immune, lymphatic, endocrine, and reproductive systems work together to maintain overall health and functionality. Discover the key organs, functions, and interactions within each system.
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Integumentary system Protective covering Sensoryinput Temperature control ORGANS Epidermis, dermis Cutaneous membrane Hair follicles Hairs, sebaceous glands temperature Sweat glands Touch, pressure, temperature, pain Sensory receptors protection nails Storage, attaches to deeper tissue Subcutaneous layer
Skeletal system structure Support vital organs movement ORGANS 206 bones Structure/protection Cartilage Maintain structure ligaments Protects vital organs Axial skeleton Appendicular skeleton limbs Bone marrow blood
Muscular system movement ORGANS Skeletal muscle Voluntary movement Involuntary movement Smooth muscle heart Cardiac muscle Connect muscle to bone tendons
Digestive system Extract and absorb nutrients ORGANS Salivary glands Lubricate and digest pharynx passageway passageway esophagus digestion stomach Digestion and absorption Small intestine liver Digestion (bile), nutrients gallbladder digestion digestion pancreas Absorption and waste storage Large intestine
Excretory system Remove metabolic waste Maintain homeostasis ORGANS Integumentary and respiratory systems assist Urinary system Regulate pH, electrolytes, endocrine functions kidneys ureters passage storage bladder pasage urethra
Cardiovascular system transport ORGANS heart Propels blood Arteries, capillaries, veins = ‘highways’ Blood vessels Nutrients, waste, blood cells, etc. blood
Respiratory system Exchange gases ORGANS Nasal cavity Filter, warm, moisten, protection pharynx passage Vocal cords larynx passage trachea passage bronchi lungs Gas exchange at alveoli
Immune and lymphatic system Protect from pathogens ORGANS Blood cells Bone marrow and blood transport Lymphatic vessels Blood cells and pathogens Lymph nodes spleen Blood cells and pathogens Blood cells (T cells) Thymus gland
Endocrine system Coordinate / regulate activities via hormones glands ORGANS Pineal, pituitary, thyroid, parathyroid, thymus, adrenal, kidneys, pancreas, gonads (testes and ovaries)
Reproductive Formation and joining of gametes gestation ORGANS male female Ovaries, uterine tubes, Uterus, vagina, clitoris, Labia, mammary glands Testes, epididymis, sperm ducts, Seminal vesicles, prostate, urethra, Penis, scrotum
Nervous system Detection of and response to stimuli ORGANS CNS Brain and spinal cord To / from CNS PNS Sensory organs Eyes, ears, skin, tongue, nasal cavity