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What is the integrating center for the negative feedback loop that regulates body temp?
There are two main components:
1- Positive feedback- The inciting event is heat radiation stimulating anterior hypothalamus nerves that cause stimulation. These then stimulate inhibiting nerves which cause hyperpolarization of sympathetic nerve systems
2- Negative feedback- The inhibition causes a decrease in sympathetic tone causing vasodilation of the vasculature, that results in heat loss. The returning temperature of blood decreases, resulting in less transfer of heat radiation, and thus homeostasis of body temp. The opposite for decrease heat radiation.
Stimulus to cold:
1- Positive feedback- Decrease in transfer of heat energy causes less depolarization of nerves in the hypothalamus, thus less stimulation of inhibitory nerve cells regulating sympathetic tone.
2- Negative feedback- Less positive inhibition causes increased activity of sympathetic nerve ending, thereby increasing vasculature tone, and thus vasoconstriction, and decreased body heat loss.
Thus, the global negative feedback is a complex interplay of several negative and positive loops, that account for: increase heat radiation->increased vasodilation through inhibition of sympathetic tone. Decreased heat radiation->decreased vasodilation (vasoconstriction) through decreased inhibition of sympathetic tone.
To answer the question more simply: anterior hypothalamus (inhibitory neurons by positive effect from heat sensing neurons) and sympathetic nervous system
What else can I help you with?
What does the integrating center of a feedback mechanism resemble?
The Thermometer.
Most often the integrating center in a feedback loop will be located within the?
Most often, the integrating center in a feedback loop will be located within the central nervous system, specifically in the brain or spinal cord. This allows for rapid processing and coordination of signals to generate appropriate responses.
Which part of a negative feedback loop detects changing conditions?
The sensor component of a negative feedback loop detects changing conditions and sends signals to the control center for regulating responses to maintain homeostasis.
When the body temperature rises a center in the brain initiates physiological changes decrease the body temperature. this is an example of?
Negative Feedback
What is sensor of negative feedback loops?
In negative feedback loops, a sensor is a component that detects a change in a system's internal or external environment. It then sends this information to the control center, which triggers a response to counteract the change and maintain homeostasis. The sensor plays a crucial role in providing feedback that helps regulate and stabilize the system.
When body temperature rises a center in the brain initiates physiological changes to decrease the body temperature is an example of negative feedback or positive feedback?
This is an example of negative feedback because the body is working to reverse the initial change in order to restore homeostasis. When the body temperature rises, the brain triggers responses such as sweating and vasodilation to help cool down the body and bring the temperature back to the normal range.
Along with sensory receptors transport information to the integrating center?
Sensory receptors detect stimuli and transmit that information to the integrating center in the nervous system, such as the brain or spinal cord. The integrating center processes the incoming signals and coordinates an appropriate response, which is then carried out by the effector organs.
What is the first step of the negative feedback mechanism?
The first step of the negative feedback mechanism is the detection of a change in a physiological parameter, such as temperature or hormone levels, by specific sensors in the body. These sensors then send signals to the control center to initiate a response to counteract the change and maintain homeostasis.
Types of feedback?
1- Simple FBI 2-Multiple FBI "Isozyme Forms" 3-Concerted FBI 4-Cumulative FBI5-Cooperative FBI
What center in the brain regulates thrist?
hypothalmus.
How does feedback mechanisms maintain homeostasis?
Sensors that are able to measure each condition of the internal environment constantly monitor the extracellular contitions and relay this information (usually via nerve signals) ti ab integrating center, wich contains the set point (the prpoer value for that condition). The integrating center receives messages from several sensors (the "stimuli"), wighing the relative strengths of each sensor input, and then determines whether the value of the condition is deviating from the set point. When a deviation occurs, the integrating center sends a message to increase or decrease the activity of particular effectors. Effectors are generally muscles or glands, and can change the value of the condition in question back toward the set point value. It works like a thermostat in one's home. You set it to 70 degrees and once it reaches a certain degree above 70 the heat will turn off, and when it goes below 70 the heat will turn on again.
What does the set point within an integrating center resemble?
A temperature setting on a thermostat
