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You just woke up and realize your alarm did not go off and you are an hour late for school. When you quickly stand up, you feel lightheaded. What happens in your body to make you feel lightheaded? The positional change results in a decreased blood flow to the brain from the ____system. This lack of blood causes problems in the brain, which is part of the ____ system. This change can lead a person to faint and fall as they lose control of their ____ system. You leave your house in a hurry and you forget your jacket. While you are walking to school, you are freezing! What happens in your body to help keep you warm? You shiver as the ____ system is contracting, creating friction to keep warm. In the ____ system, goosebumps form on your skin to raise hairs for warmth. When you get to school you realize that you forgot to eat breakfast and feel weak. You stop by the vending machine and grab a snack. What happens in your body to give you more energy? In the ____ system, the snack is broken down mechanically and chemically into nutrients. These nutrients are transported through the body to your cells using the ____ system. You are running down the stairs trying to get to your next class on time. You trip and fall in front of other students and your face becomes flush with embarrassment. You begin to sweat and you feel your heart beating faster. What system interactions brought about this response? The embarrassing situation causes the ____ system to speed up your heart rate. The blood in the ____ system rushes to your face causing you to blush. As body temperature increases, the ____ system releases sweat to cool the body. In PE today, you have a mile-long race. You are trying to win but your muscles are burning, and you feel as if your legs are going to give out. What happens in your body to help you get to the finish line first? Using the ____ system, your legs and arms are contracting to move you forward. The ____ system brings in more oxygen for cellular respiration. The ____ system transports this oxygen to your cells so ATP can be made for energy. After playing hard in PE, you don't get a chance to rehydrate after class. You feel tired and sluggish. How does your body respond to the dehydration in your body? The ____ system secretes a hormone to control the bladder's release of urine. The bladder in the ____ system holds the urine. On your way home, you cut through the woods and think you see a bloody figure behind a tree. You turn away to run but feel yourself go limp and you slump in a faint. What happened in your body to cause these reactions? The sight of the bloody figure triggers adrenaline in your ____ system to increase as you turn to run away. However, a sudden drop in your blood pressure slows the blood flow in the ____ system to the brain and you faint. You come to in the woods and realize all you saw was a sheet with red paint on it. When you arrive home, you begin to feel unusually warm and your hands are "clammy". You grab a soda, but every sip burns your throat. After visiting Urgent Care, the doctor informs you that you have strep throat. What happens in your body to fight the infection? The hypothalamus gland in the ____ system triggers the formation of a fever. The Streptococcus bacteria causes the ____ system to respond and make white blood cells inside the bone marrow of the __skeletal____ system. The ____ system transports the white blood cells to the infected area. Back at home you get some good news from your aunt. She has been expecting a baby and it is finally time for her to go to the hospital to give birth. What will happen during the birthing process? The ____ system releases hormones to trigger the birthing process. The baby in the ____ system will move into the birth canal. The ____ system is used to push the baby out.

Body System Interactions

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