You 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 stop sweating? What would happen if you could not stop sweating? What type of feedback loop is it?

Why should a cool-down be done following working out?

Explain negative feedback- use an example to support your answer. You could include how the pathway works i.e., how is the change detected? What part of the body controls the response?

1. Temperature homeostasis Describe how the body regulates temperature High (Name: Detector (Brain Region: Compensation: Homeostasis Low (Name: 2. 2. Detector (Brain Region: Compensation

What physiological reaction happens to the body with the “fight or flight” response? Increase heart rate. Constricted pupils Decreased blood pressure D. Decreased heart rate

The space exploration program has hired you for advice on how to keep astronauts healthy in the space shuttle. How can the program’s doctors make sure the astronauts bodies work well enough to exercise in space?

What stimulates Golgi tendon organs?   A muscle is contracting with minimal tension.   A muscle is stretched nearly to its limit.   A muscle has become metabolically active.   A muscle starts to relax after strenuous exercise.

Endothermic animals can maintain consistent temperature conditions by generating, main- taining, and regulating their body heat. Under cold conditions, more body heat becomes lost to the environment. Endothermic ani- mals rely on different mechanisms that allow them to maintain their body heat. Which of the following mechanisms that occur in endothermic animals does not describe a mechanism by which they maintain their body heat under these types of conditions? A B с D Some endothermic animals hibernate during extreme environmental conditions, which decreases the rate of metabolic reaction and decreases heat loss. The tissues of the blood vessels of many endothermic animals can dilate and move closer to the skin, allowing for heat to move more readily into the environment. Shivering, which can occur involuntarily in most endothermic animals, produces rapid muscle contractions, which increase the rate of cellular respiration and thereby increase heat production. Layers of densely packed…

A recent newspaper article described a new bottled water that is “super charged” with oxygen.  Since the body’s demand for oxygen increases as physical exertion increases, a university athletic coach thought that giving her athletes this oxygenated water would result in better performances.  To test this idea, the coach divided her runners up into two groups.  During practice, one group was given the super charged, oxygenated water to drink.  The other group was given regular water.  Both groups completed the same workout and drank the same amount of water (either oxygenated or unoxygenated).  At the end of practice, she had all the athletes run 400 meters as fast as they could.  She compared the times of the runners who had consumed regular water to those who had consumed the oxygenated water during practice.  The coach found that the average time of the oxygenated water drinkers was significantly faster than that of the runners who had consumed regular water during practice. Which of…

Describe one physiological response and one cultural response to excessive heat