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Chapter 3 Human Body Systems Lesson 1 The Human Body Main Idea Your body has many organ systems that transport materials and information so you can do your life processes. Vocabulary Skeletal system (115) Muscular system (115) Respiratory system (115) Circulatory system (115) Excretory system (115) Nervous system (115) Digestive system (115) Integumentary system (115) Immune system (115) Endocrine system (115) Reproductive system (115) gives the body shape and protects the organs, consists of 206 bones move muscles and some organs, consist of muscles attached to bones or tissues of some organs carries oxygen into the lungs for transfer to the blood and removes carbon dioxide from the blood for release from the body moves oxygen and nutrients to the cells, uses blood and blood vessels moves waste materials out of the body carries messages throughout the body and controls your senses, includes brain, spinal chord, and nerves Turns food into nutrients that are suitable for use by the body. protects the body from injury and infection and removes waste, includes skin, hair, and nails protects and fights against disease and illness, helps heal injuries, consists of cells that attack and kills disease organisms in tissues produces chemicals that regulate and control body functions. produces offspring What are the organ systems in your body? Main Idea Your body’s organ systems enable it to carry out life processes. Supporting Details A. Human body is a complex machine that does multiple jobs at the same time. B. Composition a. A cell is the smallest unit of life in the human body. b. Tissues are a group of cells that work together for a common function. c. Different tissues are organized into different organs d. The organs work together as part of an organ system to perform specific functions in the body. Human Body Systems System Skeletal system Muscular system Respiratory system Circulatory system Excretory system Nervous system Digestive system Immune system Integumentary system Emdocrine system Reproductive system Function Support Movement Oxygen / carbon dioxide exchange Transport Waste removal Control Food absorption Protection Protection Regulation and control reproduction What do organ systems do? Main Idea Each organ system has a specific structure and function. Supporting Details A. Organ systems work together to carry out your life process. B. Life process organ systems a. Control i. Nervous 1. Support for nervous a. Sight b. Hearing c. touch d. smell e. taste f. communicate ii. Endocrine b. Support and move i. Skeletal ii. Muscular c. Protect i. Integumentary ii. Immune d. Transport i. Respiratory ii. Circulatory iii. Digestive iv. Excretory e. Other i. Reproductive How are body materials transported? Main Idea Your organ transport system move materials throughout the body. Supporting Details A. Our bodies need a transport system to move need materials to the proper places and remove any unneeded materials. B. Moving needed materials a. Digestive system – breaks down food pulling out and absorbing needed materials and passing on unneeded material b. Respiratory system – brings in oxygen that is absorbed into the blood c. Circulatory system – transport absorbed oxygen and nutrients to the different cells C. Moving unneeded materials / waste a. Circulatory system – moves carbon dioxide and water from the cells to the excretory and respiratory systems for disposal b. Excretory system – Filters blood and removes waste in it and transports the waste outside of the body c. Respiratory system – removes carbon dioxide from blood and transports it outside of the body