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. The integumentary system is the external covering of the body, or the skin.
The skeletal system consists of bones, cartilages, ligaments, and joints
The muscles of the body have only one function – to contract, or shorten.
The nervous system is the body’s fast-acting control system
The endocrine glands include the pituitary, thyroid, parathyroid, adrenals, thymus, pancreas,
pineal, ovaries (in the female) and testes (in the male).
The primary organs of the cardiovascular system are the heard and blood vessels.
The lymph nodes (and other lymphoid organs) help to cleanse the blood and house the cells
involved in immunity.
. The job of the respiratory system is to keep the body constantly supplied with oxygen and to
remove carbon dioxide.
The digestive system is basically a tube running through the body from mouth to anus.
The urinary system removes the nitrogen-containing wastes from the blood and flushes
them from the body in urine.