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Major organ systems

* Circulatory system: pumping and channeling blood to and from the body and lungs with heart, blood, and blood vessels.

* Digestive system: digestion and processing food with salivary glands, esophagus, stomach, liver, gallbladder, pancreas, intestines, rectum, and anus.

* Endocrine system: communication within the body using hormones made by endocrine glands such as the hypothalamus, pituitary or pituitary gland, pineal body or pineal gland, thyroid, parathyroids, and adrenals or adrenal glands

* Immune system: protecting against disease by identifying and killing pathogens and tumor cells.

* Integumentary system: skin, hair and nails

* Lymphatic system: structures involved in the transfer of lymph between tissues and the blood stream, the lymph and the nodes and vessels that transport it including the Immune system: defending against disease-causing agents with leukocytes, tonsils, adenoids, thymus, and spleen

* Activity system: movement with muscles and human skeleton (structural support and protection with bones, cartilage, ligaments, and tendons).

* Nervous system: collecting, transferring and processing information with brain, spinal cord, peripheral nerves, and nerves

* Reproductive system: the sex organs, such as ovaries, fallopian tubes, uterus, vagina, mammary glands, testes, vas deferens, seminal vesicles, prostate, and penis.

* Respiratory system: the organs used for breathing, the pharynx, larynx, trachea, bronchi, lungs, and diaphragm.

* Urinary system: kidneys, ureters, bladder and urethra involved in fluid balance, electrolyte balance and excretion of urine.

For the source and more detailed information concerning this subject, click on the related links section (Wikipedia) indicated below.

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17y ago

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