Homeostatic Feedback System and Body Temperature Regulation Analysis

This assignment addresses the homeostatic feedback system, specifically focusing on how the human body regulates elevated temperatures. The solution details the negative feedback system, which involves sensors, a control center (hypothalamus), and effectors (sweat glands and blood vessels). When body temperature rises, sensors detect the change, the hypothalamus triggers responses to cool the body, such as vasodilation and sweating. The increased blood flow helps to increase heat loss into the environment and evaporation of sweat from the skin. The assignment follows the required structure, including an accurate definition of homeostasis and a thorough description of the components within the feedback loop, explaining their roles and locations within the body. The solution makes reference to the required textbooks, and provides a comprehensive overview of the process that maintains the homeostatic balance in the human body.

Running head: HOMEOSTATIC FEEDBACK SYSTEM
HOMEOSTATIC FEEDBACK SYSTEM
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1HOMEOSTATIC FEEDBACK SYSTEM
The tendency of the human body to maintain or regulate a stable and constant interior
environment is known as homeostasis (Patton & Thibodeau, 2017). Various factors are
responsible for maintaining the homeostasis in order to control the body temperature of a
person. Any variation in the homeostasis of an individual can affect the temperature of the
whole body making the person sick (Marieb & Hoehn, 2007). Negative feedback system is
involved in maintaining the homeostasis of an individual. Negative feedback system
comprise of a loop that opposes the stimulus generated in human body leading to variation in
the homeostatic level of the whole body. There are two different types of homeostatic
feedback system regulating in a human body namely positive feedback system and negative
feedback system (Patton & Thibodeau, 2017). Any variation in the body temperature of an
individual relating to homeostasis is controlled by the negative feedback system.
Negative feedback system consists of three different components including sensor,
control centre and effector. The sensors detect the rise in body temperature, which is
considered as the principal nerve cells and is the primary temperature regulator centre in a
human brain (Marieb & Hoehn, 2007). Any stimulus processed by the sensors activates the
effectors like sweat glands, which will compete against the stimulus and thus will maintain
the body temperature of an individual. In case of negative feedback system, any variation in
the body temperature is noted by the hypothalamus, a structure in brain that regulates the
temperature of the human body (Patton & Thibodeau, 2017). The sensors present in the brain
and periphery trigger the temperature maintaining centre i.e. hypothalamus in the brain. In
case of increased body temperature, hypothalamus will trigger the mechanism to cool the
elevated body temperature at normal. The blood vessels will dilate, which will lead to
increased blood flow in order to increase the heat loss into the environment (Marieb &
Hoehn, 2007). This increased blood flow will help the individual to sweat more so that the
evaporation of sweat from an individuals’ skin can help him or her to cool down the

2HOMEOSTATIC FEEDBACK SYSTEM
temperature easily and is maintained by the effector. Negative feedback system will allow the
individual to loose excess heat to the surrounding environment by evaporation of sweat or
through excess sweating.
Hence, homeostasis entirely depends on negative feedback system and the loops
concerned with the negative feedback system to regulate the body temperature of an
individual either by constricting the blood vessel or by dilating the blood vessels (Marieb &
Hoehn, 2007). Negative feedback system will maintain the body temperature parameters to
set within the required normal range hence maintain the homeostatic balance in the human
body (Patton & Thibodeau, 2017).

3HOMEOSTATIC FEEDBACK SYSTEM
References
Marieb, E. N., & Hoehn, K. (2007). Human anatomy & physiology. Pearson Education.
Patton, K. T., & Thibodeau, G. A. (2017). The Human Body in Health & Disease-E-Book.
Elsevier Health Sciences.