Types of Homeostasis Essay Assignment
Order ID 53563633773 Type Essay Writer Level Masters Style APA Sources/References 4 Perfect Number of Pages to Order 5-10 Pages Description/Paper Instructions
Types of Homeostasis Essay Assignment
Virtual Homeostasis Lab We have spent a considerable amount of time in lecture discussing homeostasis. Homeostasis refers to our bodies’ attempts to maintain a relatively constant internal environment despite constantly changing external conditions. This laboratory activity will acquaint you with several types of homeostasis and will give you hands-on experience to help you understand your own body with respect to your internal conditions and external conditions.
Part One – Skin Temperature 1.) Wash your hands thoroughly with soap and water so as to remove any oils from your skin. 2.) Obtain two cups with enough water to submerge your hand. Put one of these in the microwave until it is very warm (but not too hot to touch!). If you don’t have a microwave, you can obtain warm water any other way you see fit. 3.) Briefly touch the room temperature water. Make a mental note of how it feels temperature-wise. 4.) Place your hand in the cup of very warm water. Keep it there for 5 minutes. 5.) Immediately dry your hand and transfer it quickly to the container of room temperature water. Keep it there for 1 minute.
Discussion Questions 1.) Did the room temperature water initially feel hot, cold, or neither? Whichever one it was, describe how close the temperature of the water was to the setpoint of skin temperature, and how that may have influenced what you felt. 2.) When you transferred your hand from the warm water to the room temperature water, did the room temperature water feel hot, cold, or neither? What do you think happened to the setpoint of your skin temperature that would cause a change in how the water feels to you now versus how it felt at the beginning? 3.) How are core body temperature and skin temperature different? How do you think your body might regulate skin temperature differently compared to how it regulates core body temperature? Part Two – Exercise 1.)
Before doing anything, take your pulse rate three times and report the average pulse rate in the data table below. You may measure this by placing a finger on your carotid artery (throat) or on your wrist (radial artery) and count the number of beats per 15 seconds. Multiply this number by 4 to obtain the pulse rate (beats per minute). If you are wearing a fitness tracker (like a Fitbit), you may use that instead. If you have a medical condition that would prevent you from doing this activity, please contact the instructor. 2.)
Approximate your breathing rate by counting the number of breaths you take in a 15 second period as you did with heart rate. A single breath will consist of a breath in and a breath out – count them as only one breath, not two. 3.) Exercise by jogging lightly in place for 3 minutes. You may do jumping jacks or any other type of light exercise you deem appropriate instead. Immediately after this is done, measure the pulse and breathing rate once and record it in the data table below. 4.) Allow yourself to rest for 3 minutes.
Take the pulse and breathing rate again after this rest period. 5.) Record the pulse and breathing rate 3 more times as the you continue to rest every 3 minutes. You should have an initial resting pulse and rate (average of 3 readings), a pulse after 3 minutes of exercise, and then pulses after 3, 6, 9, and 12 minutes of rest. Record all of these values in the data table (next page). To be clear you only need to exercise once.
Discussion Questions 1.) What is the purpose of the heart, and why would it need to beat faster immediately following exercise? Think about this in terms of homeostasis and what kind of stimulus would produce a response of the heart beating faster. 2.) What happened to the pulse rate after the exerciser was allowed to rest for a period? Explain this in terms of the heart and why it doesn’t need to work at full capacity all the time. 3.) Did the changes in breathing rate that you observed correlate with the heart rate data? Explain why or why not. 4.)
Very well-trained athletes have resting pulse rates between 48 and 60 beats per minute (the average adult is 60-80 bpm). Speculate as to why a very well-trained athlete might have such a slow resting heart rate compared to a couch potato? Think about your answer in terms of the purpose of the heart and the athlete’s systemic needs. 5.) Identify the components of a homeostasis loop in this case of exercise. We have not discussed sensory mechanisms yet, so do not worry about identifying a sensor.
You should be able to identify the stimulus, control center, effector, and response, however. You may find it helpful to refer to Slide 35 in the Ch.1 PowerPoint for assistance. HINT: Exercise itself is not a stimulus. The stimulus is a numerical parameter being increased or decreased above or below a normal range. Data Table Activity Heart Rate (Beats per minute) Breathing Rate (Breaths per minute) Resting Heart Rate (Average) After Exercise After 3 min Rest After 6 min Rest After 9 min Rest After 12 min Rest
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