CH 1: 5. Identify the organ systems of the human body and the organs that they include. List the principal functions of each system.

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Integumentary

MAJOR ORGANS: skin, hair, subcutaneous tissue, sweat glands, and nails.

Skeletal

MAJOR ORGANS: bones, cartilages, associated ligaments, bone marrow.

Muscular

MAJOR ORGANS: muscles and tendons.

Nervous

MAJOR ORGANS: brain, nerves, special sense organs, and spinal cord.

Endocrine

MAJOR ORGANS: thyroid gland, pituitary gland, pancreas, adrenals, and gonads.

Circulatory

MAJOR ORGANS: heart, blood, arteries, veins, and capillaries.

Lymphatic

MAJOR ORGANS: spleen, lymph nodes, tonsils, and lymphatic vessels.

Respiratory

MAJOR ORGANS: lungs, trachea, and larynx.

Digestive

MAJOR ORGANS: teeth, tongue, pharynx, stomach, gallbladder, liver, small intestine, colon, and pancreas.

Urinary

MAJOR ORGANS: kidneys, urinary bladder, ureters, and urethra.

Reproductive

MAJOR ORGANS: Female: ovaries, uterus, and vagina.
Male: testes and penis.

Integumentary*

FUNCTIONS: barrier to pathogens and chemicals, prevents excessive water loss, helps regulate body temperature, and provides sensory information; production of Vitamin D.

Skeletal*

FUNCTIONS: supports body, stores calcium, protects internal organs, hematopoeisis.

Muscular*

FUNCTIONS: moves skeleton and produces heat.

Nervous*

FUNCTIONS: interprets sensory data and regulates body functions via electrochemical impulses.

Endocrine*

FUNCTIONS: regulates body functions via hormones.

Circulatory*

FUNCTIONS: transports oxygen and nutrients to tissues and removes waste products.

Lymphatic*

FUNCTIONS: returns tissue fluid to blood and destroys pathogens that enter the body.

Respiratory*

FUNCTIONS: exchanges oxygen and carbon dioxide between the air and blood, and produces sounds for communication.

Digestive*

FUNCTIONS: changes food to simple chemicals that can be absorbed and used by the body.

Urinary*

FUNCTIONS: removes waste products from blood and regulates volume and pH of blood.

Reproductive*

FUNCTIONS: produces eggs or sperm; in women provides a site for developing embryo-fetus.

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