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9 wk CCA Study Guide NAME: Please remember this is just a tool to help GUIDE you while you study for the test. You can also read and / or review chapter 12, 13, and 15 in your online textbook and the notes in your journal. 1. List 4 examples of external stimuli Loud sounds / alarms, bright lights, darkness, cold temps, hot temps, sharp objects, etc. answers will vary 2. A signal or change that causes an organism to react in some way is called a 3. How would your body respond if you accidentally ingested spoiled food containing toxic bacteria? You may vomit to rid your body of the toxic material 4. Describe two examples of a response-to-stimulus situation? Squinting when bright lights are turned on, shivering in the cold, sweating in the heat,increased heart rate and increases respiration rate in response to body’s oxygen needs, covering ears due to loud noises, jumping when the fire alarm goes off, red warm skin due to an infected cut, etc. answers will vary 5. Complete The Chart Below – ANSWERS WILL VARY – EXPLANATIONS NEED TO ACCURATE 6. BODY SYSTEM FUNCTION Skeletal Support Protection “BEST FRIEND(s)” SYSTEM WORKS CLOSE WITH Muscular Integumentary Protection, regulate body temp, vitamin D Circulatory and nervous systems Digestive Break down large food molecules into small molecules your body can use Circulatory and muscular systems Circulatory Circulates nutrients to all body cells and pick up wastes from cells Respiratory and muscular systems Nervous Coordinates the functions of the body Integumentary stimulus. WHY ARE THEY BEST FRIENDS Both interact to allow movement of body Works with circulatory system to regulate body temp, gathers info about environment for nervous sytem Circulatory system absorbs nutrients and carries them thru out the body, muscles move food thru the digestive system Respiratory system brings O2 into body so circulatory sys can distribute, also releases CO2, muscles line the blood vessels Integumentary sys gathers info about the environment and sends it to the brain Which body system coordinates all body functions and actions? Nervous System 7. How might your body respond if you had an infection such as strep throat? Your throat may become red, inflamed, and sore. White blood cell count may increase, you may develop a fever 8. When your body is preparing to “fight or flight” what changes might you experience? Adrenaline is released by the adrenal glands. Increased heart rate, respiration rate, and blood pressure. Your senses become more acute (very alert) and your muscles taunt. 9. Indicate if the following are examples of Internal (I) or External (E) stimuli. feeling hungry I feeling heat from a flame E stepping on a rock E low blood sugar levels I low blood oxygen levels I fire alarm E you salivate when you smell cookies cooking E tickle in your throat I lack of food E lack of water E 10. Indicate if the following are examples of stimuli (S) or a response (R). sweating R increased blood pressure R increase insulin levels R shivering R feeling thirsty goose bumps S R 11. What force do your veins have to overcome to push your blood back to your heart? Veins have to exert a force strong enough to overcome the force of gravity 12. Describe how the respiratory and circulatory systems work together to exchange gases in your body. The respiratory system brings air into the body when you inhale and fills the alveoli in the lungs. The alveoli are surrounded by capillaries. Oxygen in the alveoli enters the blood stream thru the capillary walls. The capillaries release carbon dioxide into the alveoli to be released when you exhale. 13. Complete the following chart. BODY SYSTEM Circulatory System Digestive System Nervous System Respiratory System Excretory System Integumentary system Skeletal System Muscular System 14. MAIN ORGANS / PARTS heart, blood, blood vessels Mouth,Esophagus, stomach, small intestine, large instetine, gall bladder, liver, pancreas Neuron, nerves, spinal cord, brain Lungs, alveoli, trachea, bronchi Kidney, urinary bladder Skin, sweat glands, hair, nails Bones, ligaments, joints Muscles, tendons Place the following levels of organization in correct order simplest to complex. Nervous system, neuron, brain, nerve neuron, nerve, brain, nervous system Blood, red blood cell, circulatory, blood vesselred blood cells, blood, blood vessels, Circulatory system Organ, organ system, tissue, cell cell, tissue, organ, organ system 15. Indicate which of the following are examples of the body maintaining homeostasis (H). Sweating when you get hot. H Drinking when thirsty.H Not eating when hungry. X Increased heart rate while exercising. H Decreased urine output when in a desert.H Decreased breathing when running.X STUDY YOUR NOTES REVIEW CHAPTERS 12, 13, AND 15 IN THE ONLINE TEXTBOOK