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Nutrition Science and Everyday Application - beta v 0.1

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132 ALICE CALLAHAN, PHD, HEATHER LEONARD, MED, RDN, AND TAMBERLY POWELL, MS, RDN<br />

Organ<br />

System<br />

Cardiovascular<br />

Digestive<br />

Endocrine<br />

Major Organ Components<br />

Heart, blood/lymph vessels, blood, lymph<br />

Mouth, esophagus, stomach, intestines, salivary gl<strong>and</strong>s,<br />

pancreas, liver <strong>and</strong> gallbladder<br />

Endocrine gl<strong>and</strong>s (e.g., thyroid, ovaries, pancreas)<br />

Major Functions<br />

Transport oxygen, nutrients, <strong>and</strong><br />

waste products<br />

Digestion <strong>and</strong> absorption<br />

Produce <strong>and</strong> release hormones,<br />

regulate nutrient levels<br />

Immune White blood cells, lymphatic tissue, marrow Defend against foreign invaders<br />

Integumentary<br />

Skin, nails, hair, sweat gl<strong>and</strong>s<br />

Protection, body temperature<br />

regulation<br />

Muscular Skeletal, smooth, <strong>and</strong> cardiac muscle Body movement<br />

Nervous<br />

Reproductive<br />

Respiratory<br />

Skeletal<br />

Urinary/<br />

Excretory<br />

Brain, spinal cord, nerves<br />

Gonads, genitals<br />

Lungs, nose, mouth, throat, trachea<br />

Bones, tendons, ligaments, joints<br />

Kidneys, bladder, ureters<br />

Interpret <strong>and</strong> respond to stimuli,<br />

appetite control<br />

Reproduction <strong>and</strong> sexual<br />

characteristics<br />

Gas exchange (oxygen <strong>and</strong> carbon<br />

dioxide)<br />

Structure <strong>and</strong> support, calcium<br />

storage<br />

Waste excretion, water balance<br />

Table 3.1. The eleven organ systems in the human body <strong>and</strong> their major functions<br />

An organism is the highest level of organization—a complete living system capable of<br />

conducting all of life’s biological processes. In multicellular organisms, including humans, all<br />

cells, tissues, organs, <strong>and</strong> organ systems of the body work together to maintain the life <strong>and</strong><br />

health of the organism.<br />

Self-Check:<br />

An interactive H5P element has been excluded from this version of the text. You can view it online here:<br />

https://openoregon.pressbooks.pub/nutritionscience/?p=1136#h5p-36

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