30 Questions
What is the primary function of the detector in a homeostatic control system?
To monitor the current state
What type of feedback is involved in homeostatic control processes?
Negative feedback
What is the role of the controller in a homeostatic control system?
To correct deviations from the set point
Who coined the term 'homeostasis'?
Walter Bradford Cannon
What is the term for the process of maintaining a constant blood pressure?
Baroreflex
What is the main function of detectors in homeostasis?
To inform the system of the current state
What is the role of the effector in a homeostatic control system?
To correct deviations from the set point
What is the term for the increase in sympathetic sudomotor activity and decrease in cutaneous vasoconstrictor activity to lose heat?
Sweating
What is the term for maintaining a constant level or steady state?
Homeostasis
Which of the following is NOT a component of negative feedback control?
Sensor
What happens to the temperature set point in a case of pyrogenic fever?
It is reset to a higher value
What is the term for the internal environment?
Le mileu interieur
What is the term for the control of blood volume?
Volume regulation
What is the purpose of the controller in homeostasis?
To compare the current state with the set-point
What type of signals provide feedback in some homeostatic systems?
Both chemical and mechanical signals
What is the purpose of the baroreflex during exercise?
To maintain a constant blood pressure
What is the result of negative feedback in homeostasis?
A constant internal environment
What is the purpose of effectors in homeostasis?
To bring the current state to the set-point
Which of the following is an example of negative feedback in homeostasis?
All of the above
What is the significance of set-points in homeostasis?
They can be changed to accommodate different physiological requirements
What is the primary condition for free and independent life, according to Claude Bernard?
The constancy of the internal environment
What concept is illustrated by the centrifugal governor in James Watt's steam engine?
Negative feedback control
What is the role of the internal environment in maintaining life processes?
To protect the tissues from external influences
What is the outcome of a perfect balance between the organism and the external environment?
A delicate and continuous compensation
What is the purpose of a control system in a machine, such as James Watt's steam engine?
To maintain a constant output
What is the significance of the internal environment in maintaining life processes?
It provides a constant environment for the tissues
What is the relationship between the higher animal and the external world, according to Claude Bernard?
Close and wise
What is the primary goal of homeostasis in maintaining the internal environment?
To maintain a constant internal environment
What is the characteristic of an organism that is able to maintain a constant internal environment?
Perfection in the organism
What is the role of detectors and controllers in maintaining the internal environment?
To detect and correct deviations from the set point
Understand how homeostasis maintains a stable internal environment in the body. Learn about detectors, controllers, and effectors in physiological control processes, including negative feedback and examples of homeostatic control, such as blood pressure and body temperature regulation.
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