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Surviving the Extremes
Transcript of Surviving the Extremes
-In critical situations, the brain releases endorphins. endorphins are natural pain killers more powerful than morphine. Primary Body System Secondary Body System Muscular System
- Their role is to move and find safety The High Seas Extreme Survival Situation In this survival situation, your ship sank in the middle of the ocean. You have to find food and water, but cannot. Response and adaption Your body will start to use whatever it can use as energy. Carbohydrates are used first. Then fats are used. The body will burn protein as the last ditch effort. Muscle tissue is burned first, leaving vital liver, brain, heart, and kidneys as the final straw. Body Systems Endocrine System Primary Body System Secondary Body System Circulatory System
- responsible for transporting materials throughout the entire body. It transports nutrients, water, and oxygen, and blood To fight dehydration, the the blood will take water away from cells it passes by. You will also excrete less urine to preserve fluid in the body - includes thyroid gland
- Your thyroid gland controls your rate of metabolism. Desert Extreme Survival Situation Mauro Prosperi was running an ultra-maraton in the Sahara Desert. During the race he got lost in a sandstorm. He has to fight over-heating and dehydration in desert conditions Response and adaption Your hypothalamus controls body temperature responds to the intense heat of the desert. Blood is diverted to the skin to help cool the body. Sweat glands release fluid as another way to cool body. To battle dehydration, the body shifts water to the blood in the process of osmosis, wringing it out of the less immediate organs until the salf concentration in hte blood returns to normal. Body Systems Nervous System - includes brain, spinal cord, nerves, hypothalamus
-The hypothalamus in the brain is the body's thermostat. When the body overheats, it controls how the body will cool itself and open sweat glands if needed Primary Body System Secondary Body System Circulatory System
- This system contains blood specialized bodily fluid in animals that delivers necessary substances such as oxygen, water, and nutrients Underwater Extreme Survival Situation Bernie Clowdhury was diving down to a ship at a depth of 150 feet. He went down to find some souvenirs and decided to ascend to the surface. He did so with out decompressing, causing him to get a very bad case of bends. Response and adaption Dissolved nitrogen in the blood form bubbles everywhere throughout the body. The bubbles prevent blood flow in vessels. White blood cells think there is an alien bacteria and creates an inflammatory response. Platelets sense the air and think that there is a cut and form blood clots everywhere. Cells throughout the body burst. The author says that the body has no appropriate response because the underwater is an environment no human has ever lived. Body Systems Circulatory System -includes the heart, arteries, veins, blood
-nitrogen dissolved in the blood turn to bubbles
-the blood cells react chaotically with the nitrogen gas Primary Body System Secondary Body System Affects every system
-the bubbles move to other parts of the body such as muscles, brain, vital organs High Altitude Extreme Survival Situation On Mt. Everest, Dr. Kamler was traveling with a group for National Geographic. One of the native travelers, Koncha suffered pulmonary edema Response and adaption As the altitude increases, the drop in air pressure makes the lungs work harder to get oxygen. To increase airflow, Blood flow must also increase. Pulmonary arteries increase in pressure. Because of the low oxygen pressure, blood vessels are constricted everywhere causing plasma to spill into air sacs of lungs Body Systems Respiratory System - Includes lungs, alveoli, and trachea
-Lungs are being worked harder to make up for the poor oxygen levels in the body Primary Body System Secondary Body System Circulatory System
- Blood in the circulatory system transports oxygen to the rest of the body Outer Space Extreme Survival Situation While living in space, the battle must battle weightlessness and adapt to the conditions of space. Response and adaption Since there is no day and night, your body does not know when to produce melatonin. Your body then just stays awake from 24 hours and sleep for 12. Bone loss and muscle loss results from no continual stress. Blood volume is reduced also. Immune system is weakened too. No one understands why yet. Body Systems Nervous System - includes brain, spinal cord, and nerves
- weightlessness and no day or night greatly affects the brain and how it runs. Your brain loses balance, regular sleep patterns, and suffers from bordom Primary Body System Secondary Body System Every body system
- Every body system is affected by the extreme change in environment. Muscle and bones get weaker. So does your immune system and blood volume.
Conclusion Dr. Kamler concludes that humans are not physically or mentally adapted for these extreme environments. The animals that inhabit these parts have evolved there for thousands of years. Humans don't have physical features to let them survive but do have brain power. Humans can mimic specific features such as fur. Our brain enables us to survive the most extreme environments Most humans have been adapted to live in a warm temperate climate on dry land. What happens when humans leave their optimal living conditions for extreme environments? Can we survive? We will explore extreme survival situations from 6 different extreme environments: the Jungle, High Seas, Desert, Underwater, High Altitude, and Outer Space. Work Cited http://www.answersingenesis.org/articles/am/v4/n4/wired-for-extremes
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Kamler, Kenneth. Surviving the Extremes. Print. What Author is Teaching He is teaching that after generations of genetic adaptations in the jungle,his immunity has increased and brain circuits for increased pain tolerance What Author is Teaching Humans have never lived underwater, so we have no adaptions to bends. The body responds in a random, violent way.