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Human body systems

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  • 1. Chapter 28
  • 2. Cells make tissuesTissues make OrgansOrgans make OrganSystemsOrgan Systems make anorganism
  • 3. The Digestive System: The Respiratory System: Smooth muscle cells  Epithelial lung cells make: make: Intestinal muscle  Epithelial lung tissues, tissues, which make: which make: Intestines, which are  Lungs, which are part part of the: of the: Digestive system  Respiratory system
  • 4.  Epithelial tissue– tightly packed cells that line organs and make the skin Connective Tissue—support, bind together, and protect tissues and organs. Tendons, ligaments, bone and cartilage are connective tissues Muscle Tissue—produces movement. Skeletal, cardiac, and smooth muscle Nervous Tissue—transmits and receives impulses
  • 5.  Circulatory—heart, blood vessels, blood lymph nodes, lymphatic vessels. Transports oxygen, nutrients, and wastes; regulates body temperature. Digestive—mouth, pharynx, esophagus, stomach, intestines, pancreas, gallbladder, liver. Breaks down /absorbs nutrients, salts, water; rids of waste Endocrine—hypothalamus, pituitary, thyroid, parathyroid, adrenals, pancreas, ovaries, testes. Growth, development, metabolism, maintains homeostasis
  • 6.  Immune—white blood cells, thymus, spleen. Protects against disease, stores and makes white blood cells. Integumentary—skin, hair, nails, sweat and oil glands. Barrier to infection, injury, UV rays, regulates body temperature. Muscular—skeletal,smooth, and cardiac muscles. Produces movement, helps circulate blood and moves food Nervous– brain, spinal cord, peripheral nerves. Processes info., regulates responses
  • 7.  Reproductive—testes, penis, ovaries, fallopian tubes, uterus, vagina. Produces reproductive cells, houses an embryo Respiratory—nose, sinuses, pharynx, larynx, trachea, lings. Brings in O2, expels CO2 and water vapor Skeletal—bones, cartilage, ligaments, tendons. Supports and protects organs, movement, stores nutrients, makes red blood cells. Excretory—skin, lungs, kidneys, bladder. Eliminates waste, helps maintain homeostasis
  • 8.  Allparts of the body are controlled by feedback loops. Negative feedback keeps things at set points (ex. body temperature, blood glucose level, oxygen levels) Positive feedback moves AWAY from a set point (ex. clotting factors will increase greatly until a cut stops bleeding, hormones levels are greatly increased during puberty)