Reginald Robinson
BIO1000
Capella University
The homeostatic mechanism that regulates body temperature is called hypothalamus. It senses when your body’s temperature is too hot or cold. When your body is too hot, the hypothalamus senses that a change needs to be made so to reverse the heating process, thus reducing the amount of blood that is being sent to that area. This same action will cool the body and return it to a normal temperature. The ways in which my body will react to maintain body temperature is that my hair follicles will tighten up to make the hairs on my body stand up higher to help insulate the body. The body produces physiological responses such as shivering, which will generate heat production in my muscles. Then Vasoconstriction (constriction of the blood vessels), which will reduce the heat transfer from the skin surface. The stimulus: a decrease in external temperature causing a decrease in body temperature. The physiological responses will reverse the original stimulus, and the internal body temperature will begin to increase. The receptors are where the cells detect and register a change. It includes the Thermoreceptors in the skin, abdominal organs, spinal cord, and hypothalamus which will detect the decrease in temperature. The modulator is the where change is processed and information is relayed on. It includes the Hypothalamus which sends information from the nerve and hormonal systems to effectors. The effectors include skeletal muscles, blood vessels in the skin, cerebral cortex, and body cells that help adjust the amount of secretions the body puts out. The homeostatic mechanism, Hypothalamus, is a negative feedback mechanism because your body is working to counteract and stop the rise in temperature.
References
Oza, N., & Cooper, D. (2014). The Importance of Homeostasis in the Human Body: Keeping Us Alive. Retrieved from
References: Oza, N., & Cooper, D. (2014). The Importance of Homeostasis in the Human Body: Keeping Us Alive. Retrieved from http://www.brighthub.com/science/medical/articles/111342.aspx Maintaining Body Temperature. (2011). Retrieved from http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_pre_2011/homestasis/homeostasisrevl.shtml