11 Organ Systems

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Integumentary
Major Organs: Skin, hair,nails, sweat glands, and sebaceous glands.
Major Functions: Protect tissues, regulate body temperature, and support sensory receptors.
Skeletal
Major Organs: Bones, ligaments, cartilages
Major Functions: provide framework, protect soft tissues, provide attachments for muscles, produce blood cells, store inorganic salts
Muscular
Major Organs: Muscles
Major Functions: Cause movements, maintain posture, produce body heat
Nervous
Major Organs: brain, spinal cord, nerves, sense organs
Major Functions: detect changes, receive and interpret sensory information, stimulate muscles and glands
Endocrine
Major Organs: glands that secrete hormones
Major Functions: control metabolic activities of body structures.
Cardiovascular
Major Organs: Heart, arteries, capillaries, veins
Major Functions: move blood through blood vessels and transport substances throughout body
Lymphatic
Major Organs: lymphatic vessels, lymph nodes, thymus, spleen
Major Functions: return tissue fluid to the blood, carry certain absorbed food molecules, defend the body against infection
Digestive
Major Organs: mouth, tongue, teeth, salivary glands, pharynx, esophagus, stomach, liver, gallbladder, pancreas, small and large intestines
Major functions: receive, break down, and absorb food; eliminate unabsorbed material
Respiratory
Major Organs: nasal cavity, pharynx, larynx, trachea, bronchi, lungs
Major Functions: intake and output of air, exchange of gases between air and blood
Urinary
Major Organs: kidneys, ureters, urinary bladder, urethra
Major Functions: remove wastes from blood, maintain water and electrolyte balance, store and eliminate urine
Reproductive
Major Organs: Male: Scrotum, testes, epididymides, ductus deferentia, seminal vesicles, prostate gland, bulbourethral glands, urethra, penis. Female: ovaries, uterine tubes, uterus, vagina, clitoris, vulva
Major Functions: Male: produce and maintain sperm cells, transfer sperm cells into female reproductive tract. Female: produce and maintain egg cells, receive sperm cells, support development of an embryo, and function in birth process.