A defective control center (a homeostatic control mechanism component) can lead to: undetermined variable set point inappropriate response to stimuli incorrect analysis of input from effector a and b a, b, and c
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. A defective control center (a homeostatic control mechanism component) can lead to:
- undetermined variable set point
- inappropriate response to stimuli
- incorrect analysis of input from effector
- a and b
- a, b, and c
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- Which of the following is the correct definition of positive feedback? a The process by which the body neglects homeostasis. b A mechanism in which the body's response to a stimulis opposes the stimulus. c A mechanism whereby the body responds to a stimulus by acting to enhance the stimulus d The dynamic equilibrium maintained by an integrating center which causes an effector to respond to the stimulus received by the receptor.Describe the autonomic nervous system and in detail explain the two branches involved with balancing the activities of these organs bringing about homeostasis.Name 3 stressors affecting homeostatic balance. Choose 1 stressor to elaborate on, stating the stimulus, sensor, control centre, effector and response.
- State the effector and sensor of this system. Then choose if it utilizes a feedforward, negative feedback or positive feedback strategy.Define homeostasis. What happens when homeostasis fails? List the three basic components of a control system and give an example. Describe the components of a reflex pathway. Contrast the response loop and the feedback loop. Explain the relationship between a regulated physiological variable and its setpoint. Is the physiological variable exactly at its setpoint? Compare and contrast negative and positive feedback. Give a biological example of each. Is the setpoint constant or can it change over time? If setpoints can change over time, what is this called? Chapter 2:31. What elements are involved in homeostatic mechanisms? Group of answer choices sensor, responder, and effector sensor, controller, and effector thermoreceptor, set point, and effector stimulus, sensor, and effector
- Indicate all the measurable physiological parameters/outputs from Nervous system. What established and novel laboratory techniques are used to measure these parameters?what insights do these parameters provide about the status of Nervous system and how will it affect homeostasis?1) As a physiologist, which of the following terms should you immediately associate with negative feedback regulation? Answer choices Constancy Relative constancy Relative constancy in interstitial fluid Relative constancy in intracellular fluid 2) Which of the following is true about physiological set-points? Answer choices They act as the integrating center in a negative feedback arc They represent the internal environment They are determined by the actions of the receptors and integrating centers They are constant They act as the effector in a negative feedback arc 3) What is the general purpose of negative feedback mechanisms? Answer choice a. to maintain a constant internal environment b. To anticipate changes in the environment c. To return a variable to its set-point d. To bring about the rapid change of a variable e. To detect changes in the external environmentName 3 stressors affecting homeostatic balance. Choose 1 stressor to elaborate on, stating the stimulus, sensor, control centre, effector and response. Include a diagram with your explanation and identify the importance of homeostasis.
- For the following physiological events, identify the following components of homeostatic control Variable Stimulus Receptor Input Control center Output Effector Response Thyrotropin-releasing hormone (TRH) is a hormone regularly released by the hypothalamus. Once released, it then stimulates the anterior pituitary gland causing it to release thyroid stimulating hormone (TSH). TSH then stimulates the thyroid gland to release the hormones T3 and T4. T3 and T4 have two main effects. First, they increase overall metabolism. Secondly, T3 and T4 can bind to these receptors on the hypothalamus and anterior pituitary, inhibiting the production of TRH and TSH respectively.Explain the structure, main components and role of the nervous system in homeostasisDescribe your response to a sudden severe pain in yourown experience; for example, an injury. Describe yourphysical response and your emotional reactions.
