chapter24

chapter24 - 1 Housekeeping Items POP QUIZ TODAY ON CHAPTERS...

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2 Housekeeping Items Housekeeping Items POP QUIZ TODAY ON CHAPTERS 22 and POP QUIZ TODAY ON CHAPTERS 22 and 23! 23! Get out your clickers! Get out your clickers!
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3 Quiz 9 – Chapters 22 and 23 Quiz 9 – Chapters 22 and 23 KEEP UP WITH KEEP UP WITH THE LECTURE THE LECTURE MATERIAL OR MATERIAL OR BE EATEN BE EATEN ALIVE! ALIVE!
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4 Adrenalin Chemistry Adrenalin Chemistry Amine Chemistry Amine Chemistry
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5 Caveman Caveman
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6 Caveman encounters a Sabertooth Tiger Caveman encounters a Sabertooth Tiger
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7 Effect of Adrenaline Release on Body Effect of Adrenaline Release on Body Adrenaline Adrenaline (epinephrine) (epinephrine) 1. 1. Increased heart rate Increased heart rate 2. 2. Eyes dilate Eyes dilate 3. 3. Blood pressure soars Blood pressure soars 4. 4. Brain works faster Brain works faster 5. 5. And in some cases you get really irritated And in some cases you get really irritated Within seconds Within seconds
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8 The Fight or Flight Response in the Past The Fight or Flight Response in the Past Imagine you are a caveman/woman out innocently picking berries on a warm afternoon when suddenly you come nose to nose with a saber-tooth tiger . While you were simply gathering, the tiger was actually stalking you, and the sight of you makes his mouth water. Luckily millions of years of evolution have endowed you with a set of automatic 'physical weapons' that take over in the event of just such an emergency. At the sight of the tiger, your hypothalamus sends a message to your adrenal glands and within seconds, you can run faster, hit harder, see better, hear more acutely, and think faster than you could only seconds earlier. TIME SEEMS TO SLOW DOWN, but in reality your brain is processing information much faster . STORY: Reading digital number display when dropped from tower. Your heart is pumping at two to three times its normal speed, sending nutrient-rich blood to the major muscles in your arms and legs. Your eyes become dilated. The tiny blood vessels under the surface of your skin close down (which consequently sends your blood pressure soaring), so that you can sustain a surface wound and not bleed to death. Even your pain perception diminishes. All functions of your body not needed for the impending struggle are shut down. Digestion stops, sexual function stops, even your immune system is temporarily turned off. Your suddenly supercharged body is designed to help level the odds between you and your attacker. Consequently, you escape death by leaping higher and running faster than you ever could before. With the danger now over, you find a safe place to lie down and rest your exhausted body. The danger is past, and now your body returns to a normal state.
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9 Fast forward to TODAY Fast forward to TODAY Obviously happy Life is Good No Sabertooth Tigers to worry about
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Fast forward to TODAY Fast forward to TODAY Obviously happy Life is Good No Sabertooth Tigers to worry about When Suddenly! When Suddenly!
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chapter24 - 1 Housekeeping Items POP QUIZ TODAY ON CHAPTERS...

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