![]() ![]() It includes the mouth, tongue, teeth, salivary glands, pharynx, esophagus, stomach, liver, gallbladder, pancreas, small intestine, and large intestine. ![]() ![]() Digestive System Respiratory System Urinary System ĭigestive System The digestive system receives foods, breaks down food molecules into nutrients that can pass through cell membranes, and eliminates materials that are not absorbed. Ībsorption & Excretion Organs in several systems absorb nutrients and oxygen and excrete various wastes. Aids in defending the body against disease-causing agents. Carries certain fatty substances away from the digestive organs. ![]() Lymphatic System Transports lymph fluid from tissues to the bloodstream. Ĭardiovascular System Blood transports gases, such as oxygen and CO 2, Transport of nutrients, such as sugars, and waste Transport of hormones. Transport 2 organ systems transport substances throughout the internal environment: Cardiovascular System : the heart, arteries, veins, capillaries, and blood Lymphatic System : lymphatic vessels, lymph fluid, lymph nodes, thymus gland, and spleen. Hormones regulate metabolism This system includes the pituitary, thyroid, parathyroid, and adrenal glands, as well as the pancreas, ovaries, testes, pineal gland, and thymus gland. Hormonal effects take longer to occur and last a relatively long time period. The affect of a hormone is to alter the metabolism of the target cells. A particular hormone affects only a particular group of cells, called Target Cells. Secrete hormones that travel throughout body in the bloodstream or in interstitial fluid. (effectors) Įndocrine System All the glands in your body. Some nerve cells carry impulses from the brain or spinal cord to muscles or glands, stimulating them to contract or to secrete products. (receptor) Some nerve cells receive the impulses transmitted form these sensory receptors and interpret and act on the information received. Some neurons act as specialized receptors that detect changes inside and outside the body. Each impulse produces a fast response and last a relatively short time. Nervous System Nerve cells (called neurons ) within the body use electrochemical signals called nerve impulses to communicate with one another and with muscles and glands. Nervous System : brain, spinal cord, nerves, and sense organs Endocrine System : all the glands that secrete chemical messengers called hormones Integration & Coordination The nervous and endocrine systems control and adjust various organ functions, which maintains homeostasis. Skeletal System : bones, ligaments and cartilage that binds bones together Muscular System : muscles & tendons Support & Movement The organs of the skeletal and muscular system support and move body parts. Examples: The skin and various accessory organs, such as hair, nails, sweat glands, and sebaceous glands Some organs function in multiple systems īody Covering The Integumentary System : protect underlying tissues, helps regulate body temperature, houses a variety of sensory receptors, keeps pathogens out, and synthesizes certain products. Each includes a set of interrelated organs that work together to provide specialized functions. Organ System The human organism consists of several organ systems. ![]()
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