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Science 8 Worksheet 2.1 Name____________________________ Date ____________________________ Chapter 2: Human Body Systems Work Independently and Together PART 1- BODY SYSTEMS Chapter Opener (p. 52-53) 1. In this chapter, you will: investigate how different human body systems function ___independently______ and _____together_______ examine the structure and function of these 4 systems: o ________Digestive________ o _______Excretory_____ o ________Circulatory_________ o _________Respiratory______ 2.1 Body Systems (p. 54-63) THE CHARACTERISTICS OF SYSTEMS 2. Systems have the following THREE characteristics: o _______Individuals parts working together as a whole_ o _Part of the system is removed or damage, system won’t work___ o _______Connected to one or more systems.__ 3. What is an example of more than one system WORKING together?______Body system circulatory system involves the heart and digestive system – excretory - respiratory _____ 1 INTRODUCING THE SYSTEMS OF THE HUMAN BODY 4. Name and describe the ELEVEN systems of the human body. SYSTEM DESCRIPTION Circulatory sys Transports blood, nutrients, gases and waste Digestive sys Respiratory sys Excretory sys Immune sys Endocrine sys Reproductive Takes in food, breaks down food and absorbs nutrients and eliminates waste Breathing, distributes gases in lungs and tissues Removes liquid and gas waste from the body Defends the body against infections Hormones Reproductive organs for producing offspring Integumentary sys Skin, hair, nails, water proof protective barrier around the body Skeletal sys Bones, supports, protects and works muscular system Muscular Muscle that work with bones to move the body, muscular tissue that move organs (kinda of) 2 Nervous Detect changes in the environment and carries out a response ORGAN SYSTEMS: PUTTING IT ALL TOGETHER 5. Define organ system __A system that includes one or more organs____________ 6. Define tissue A group of cells that have the same structure and functions_ 7. Define organ _A group a tissues that work together to perform a task__ 8. Refer to Figure 2.4 on page 58 of your textbook and place the following terms in order from simplest to most complex on the lines below. organ system tissue organism cell organ _____cell____ →____tissue___ →____organ____→___Organ system__→ ___organism____ TISSUES: THE FOUNDATION OF BODY SYSTEMS 9. Using table 2.1 on page 59, name and describe the FOUR types of tissue found in the human body. TISSUE TYPE Muscle Nerve Connective DESCRIPTION Skeletal muscle tissue – body movement Muscular tissue – cardiac (heart pumping) Transfers signals to the body and tells the body how to respond to changes in the internal and external Holds together such as skeletal and 3 muscular tissue epithelial Covers surface of organ, body and covers inside body parts 4