Feedback Mechanism
Feedback Mechanism
Our body works most efficiently when its internal environment kept constant. This means that factors such as temperature, water content, available energy, available oxygen and concentration of wastes in the blood are all controlled. The process of maintaining a constant internal environment is known as homeostasis. Homeostasis involves receptors that are sensitive to a particular stimulus, and effectors, muscles or glands that have an effect on the same stimulus.
This type of control is known as a feedback system.
To understand this, consider a reverse cycle air conditioner like as an example of a machine that maintains a constant environment. A sensor called a thermostat is set at a particular temperature range, such as 21 - 23 degree celsius. If the temperature of the room goes above 23 degree celsius, the air conditioner switches on and cools the room until the required temperature is reached. The sensor detects this and then the air conditioner switches off until it once more detects a rise in temperature. It the sensor detects a lower temperature than 21 degree celsius, the heating system turns on. The temperature in the room rises and the heater turns off once the set temperature range of 21 - 23 degree celsius is reached.
Our body responds to the environment in a similar way. When temperatures rise, the body reacts by sweating and dilating blood vessels in an attempt to cool a person down. When the temperature decreases, the body responds by contracting blood vessels, creating goosebumps and making the body and prevent heat loss. In this way, the body maintains its optimal temperatures.
The process of maintaining constant internal temperature is called as ________________ | |||
| Right Option : D | |||
| View Explanation | |||
Our body respond to ____________ temperature by contracting blood vessels, creating goosebumps and making the body and prevent heat loss | |||
| Right Option : B | |||
| View Explanation | |||
The feedback mechanism is triggered when the system undergoes a __________ | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [10]
It has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
