Billy is visiting the mountains in Colorado, and the temperature is below freezing. Billy's skin cells sense his dropping body temperature. His muscle cells start contracting to produce shivering to warm him back up. Billy's skin cells are acting as what part of this homeostatic system?
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- Why is putting on a coat not an example of homeostasis? What is an example of homeostasis if your body is cold?Imagine you are sick and you have fever. Sensors on the skin and brain detect this and communicate with the temperature regulatory center in the brain which then sends out a command to the sweat glands of your body as a result of which you start sweating and in about 15 mins your body temperature comes back to normal for the time being. This this feedback loop, identify the following: sensors control center effector stimulus responseDuring a bacterial infection, the pathogen and the immune system send signals to the hypothalamus suggesting that temperature is set too low. In which of the following ways would the body respond? Sweating Breathing heavily Shivering Laying out splayed on the bed
- Jim does research in Antarctica. He frequently endures extremely low temperatures. Explain how his skin, muscles, and metabolism help him to maintain his body temperature.The feedback loop shown below is an example of negative feedback that uses the narrowing and widening of blood vessels in the skin to regulate body temperature. DIRECTIONS: Label the diagram using the words or phrases from the word bank. Then answer the questions that follow. body temperature falls body temperature rises normal body temperature vasoconstriction vasodilation Feedback: Feedback: Response: ACY MENT CHA RICH OF EATIO Response: EX Stimulus: Increase in Body Temperature Stimulus: Decrease in Body TemperatureWhich of the following responses is an effector activated by the hypothalamus when the body temperature is lower than the set point? Group of answer choices move to a warmer location or put on a sweater skeletal muscles contract sweat glands initiate sweating skin blood vessels dilate
- z uousənO In terms of homeostasis, what is the most likely response to an increase in environmental temperature? Blood vessel constriction "Goosebump" formation Producing Sweat shivering and muscle contractionBody temperature is homeostatically regulated around a set point. Given your knowledge of negative feedback and homeostatic control systems, predict whether narrowing or widening of the blood vessels of the skin will occur when a person exercises strenuously. (Hints: Muscle contraction generates heat. Narrowing of the vessels supplying an organ decreases blood flow through the organ, whereas vessel widening increases blood flow through the organ. The more warm blood flowing through the skin, the greater is the lossAll else being equal, a warm chameleon sitting on a sunny tree branch will experience a decrease in body temperature due to conduction if: It changes color, and its new hue is a lighter color, reducing the amount of energy the chameleon absorbs from the sun. The branch is cooler than the chameleon, and heat moves directly from the warmer animal to the cooler branch. It opens its mouth, allowing water to evaporate from its tongue and cheeks. OA cold breeze moves over the chameleon, transferring heat from the warmer chameleon to the cooler, moving air.
- Which of the following responses is an effector activated by the hypothalamus when the body temperature is lower than the set point? skin blood vessels dilate skeletal muscles contract move to a warmer location or put on a sweater weat glands initiate sweatingYou went to a picnic with your friends. What happens when you go out on a hot day?What would happen if you were unable to sweat? What tells your body to stopsweating? What would happen if you could not stop sweating? What type of feedbackloop is it?Body temperature is homeostatically regulated around a set point. Given your knowledge of negative feedback and homeostatic control systems, predict whether narrowing or widening of the blood vessels of the skin will occur when a person exercises strenuously?