5 A group of tissues that perform a specific function. OrgansA group of tissues that perform a specific function.
6 A group of organs that work together to perform a specific function. Organ SystemsA group of organs that work together to perform a specific function.
7 Interactions Within the Human Body Each organ system is dependent on other body systems.
8 Main components – BRAIN, SPINAL CORD, AND NERVES Nervous SystemObtains and processes information from the body’s internal and external environment; directs most body functions.Main components – BRAIN, SPINAL CORD, AND NERVES
9 Cardiovascular System Transports needed materials to body cells; removes wastes (main components – HEART, ARTERIES, VEINS)
10 Digestive SystemBreaks down food and absorbs the broken-down materials (main components – LIVER, STOMACH, GALL BLADDER, SMALL INTESTINE, AND LARGE INTESTINE)
11 Respiratory SystemGets oxygen into the body; removes carbon dioxide. (Main component – TRACHEA, LUNGS, AND DIAPHRAGM)
12 Enables the body to move Muscular SystemEnables the body to move
13 Skeletal SystemSupports and protects the body; works with muscles to enable movement processes
14 Endocrine SystemProduces chemicals called hormones that help control many body processes (Main components – GLANDS, PANCREAS, AND KIDNEYS THAT PRODUCE HORMONES)
15 Excretory SystemRemoves wastes; helps regulate water in the body (Main component – KIDNEY)
16 Immune SystemFights Disease (Main components – LIVER, LYMPH NODES, WHITE BLOOD CELLS, BLOOD, AND THYMUS)
17 Skin (Integumentary) System Protects the body, keeps water inside, and helps sense the external environment
18 Reproductive SystemCreate offspring, determines male and female characteristics (Main Components – OVARIES and TESTES)
19 Interactions in TRANSPORTING OXYGEN RESPIRATORY – delivery of oxygen and removal of carbon dioxide.Trachea – tube connecting to the lungsAlveoli –round sacs in the lungsMoves oxygen from air to bloodMoves carbon dioxide from blood to airCARDIOVASCULAR – carries oxygen from lungs to bloodstreamMUSCULAR – enables air to enter lungsDiaphragm – dome shaped muscle
20 Interactions in DIGESTING FOOD DIGESTIVE – breaks down food into simpler substances to be used by body cellsMouth and Stomach – begins to break down foodSmall Intestine – Completes the breakdown of food and absorbs the nutrients (through villi)Large Intestine – undigested food passes out of the body as waste
21 Interactions in DIGESTING FOOD MUSCULAR – moves jaws to break down food.Absorption of nutrientsEnables you to swallow foodWithin the stomach – food is churned and squeezed, broken down into smaller particles
22 Interactions in DIGESTING FOOD CARDIOVASCULAR – carries nutrients absorbed through the small intestine to the blood.Nutrients are carried throughout the body.
23 MOVEMENTS: MUSCLES, BONES, AND NERVES MUSCULAR – produce movement by contracting or shorteningSKELETAL – muscles attached to bones move your bodyNERVOUS – involved in movement. Brain and nerves direct muscles to contract.CARDIOVASCULAR – circulates oxygen and food to cellsRESPIRATORY – brings oxygen into body, removes carbon dioxideDIGESTIVE – processes food for delivery to cells