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Name: Answer Key Review sheet for Quiz on Sections 1-1 and 1-2 1. What is the difference between an observation and a conclusion? An observation is a description of something and a conclusion is the explanation for it. (What vs why) 2. Pretend that you are at the beach. Write an observation and a conclusion about the beach. Obs: I see waves crashing and feel sand under my feet. Concl: I must be at the beach. 3. What is homeostasis? -the maintenance of a stable internal environment 4. What is an example of homeostasis? -Our body’s ability to regulate temperature, waste, water level, etc (stay balanced) 5. Put the following words in order from smallest to largest: organ, cell, organ system, tissue. Cell → Tissue → Organ → Organ system 6. What are the 4 types of tissue found in the body? -muscle tissue -epithelial tissue -connective tissue -nervous tissue 7. What are the 3 parts of the skeletal system? Bones, cartilage, connective tissue (ligaments, tendons, etc) 8. What are the 4 functions/ jobs of bones? -protection -storage of fat and minerals -movement -blood cell formation 9. Name the three types of joints and say where each can be found in the body. Ball and socket (hip, shoulder) hinge (elbow, knee) gliding (wrist, hands) 10. What is a difference between spongy and compact bone? Spongy bone has spaces and compact does not 11. Where is cartilage found in the body? Cartilage is found on the ends of bones, joints, and areas such as our nose, ears, etc 12. Name three diseases/ injuries of the skeletal system. - - fracture (broken bone) osteoporosis (bone weakening) carpal tunnel syndrome (bones and joints) arthritis (joints) - sprain (connective tissue) scoliosis (bone) skull clavicle rib cage humerus vertebral column/ spine pelvic girdle/ pelvis radius ulna femur patella fibula tibia Fill in the parts of the chart that are missing. Organ System Functions Organs/ parts Urinary system Removes wastes/ regulates fluid Kidneys, bladder, ureters… Cardiovascular/ circulatory system Pump blood Heart and blood vessels Integumentary system Protection Hair, skin, nails Digestive system Breaks down food/ absorbs nutrients Mouth, esophagus, stomach, lg and sm intestines, liver, gall bladder… Nervous system Send electrical signals/ messages throughout the body Nerves and brain Respiratory system Bring in oxygen and release carbon dioxide Lungs, trachea, bronchi… Muscular system Movement Biceps, triceps, abs, hamstrings, Quadriceps… Skeletal system Support, protect, blood cell formation, storage, movement Femur, skull… Lymphatic system Removes germs/ pathogens and returns fluid to the blood Spleen, lymph nodes, thymus