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Human Body Systems

Human Body Systems. Unit 14 10A. Functions of Each System. Nervous – response Integumentary – (skin) protection Skeletal – support Muscular – movement Circulatory – transportation Respiratory – gas exchange Digestion – nutrients Excretory – waste Endocrine – (hormones) homeostasis

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Human Body Systems

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  1. Human Body Systems Unit 14 10A

  2. Functions of Each System • Nervous – response • Integumentary – (skin) protection • Skeletal – support • Muscular – movement • Circulatory – transportation • Respiratory – gas exchange • Digestion – nutrients • Excretory – waste • Endocrine – (hormones) homeostasis • Reproductive – reproduction • Immune – (lymphatic) disease protection

  3. Nervous System Organs: brain, spinal cord, peripheral nerves Function: recognizes and coordinates the body’s response to changes in its internal and external environments

  4. Lymphatic/Immune System Organs: white blood cells, thymus, spleen, lymph nodes, lymph vessels Function: helps protect the body from disease; collects fluid lost from blood vessels and returns the fluid to the circulatory system

  5. Endocrine System Organs: hypothalamus, pituitary, thyroid, parathyroids, adrenals, pancreas, ovaries (females), testes (males) Function: controls growth, development, & metabolism; maintains homeostasis

  6. Integumentary System Organs: skin, hair, nails, sweat, and oil glands Function: serves as a barrier against infection and injury; helps to regulate body temperature; provides protection against ultraviolet radiation from the sun

  7. Skeletal System Organs: bones, cartilage, ligaments, tendons Function: protects organs, aids in movement, provides structure

  8. Muscular System Organs: skeletal muscle, smooth muscle, cardiac muscle Function: works w/ skeletal system to produce voluntary movement; helps to circulate blood and move food through the digestive system

  9. Digestive System Organs: mouth, pharynx, esophagus, stomach, small & large intestine; rectum Function: converts foods into simpler molecules that can be used by the cells of the body; absorbs food; eliminates wastes

  10. Excretory System Organs: skin, lungs, kidneys, ureters, urinary bladder, urethra Function: eliminates waste products from the body in ways that maintain homeostasis

  11. Circulatory System Organs: heart, blood vessels, blood Function: brings oxygen, nutrients, and hormones to cells; fights infection; removes cell wastes, helps to regulate body temperature

  12. Respiratory System Organs: nose, pharynx, larynx, trachea, bronchi, bronchioles, lungs Function: provides oxygen needed for cellular respiration and removes excess carbon dioxide from the body

  13. Reproductive System Organs: males – testes, epididymis, vas deferens, urethra, penis females – ovaries, fallopian tubes, uterus, vagina Function: produces reproductive cells; females – nurtures & protects developing embryo

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