Ch 6 Homeostasis pg 196 - 210
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each of the black spaces below before clicking
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| show | The nervous system has a role in preserving the "fitness" of the internal environment.
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| What is Cannon's second postulate? | show 🗑
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| show | Some systems of the body are under antagonistic control
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| What is Cannon's fourth postulate? | show 🗑
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| show | Tonic control usually involves one control system, but antagonistic control uses two
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| show | A signal can have opposite effects by using different receptors or different signal pathways
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| show | Local control takes place in or very close to the target cell. Reflex control is mediated by a distant integrating center
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| Name the seven steps in a reflex control pathway in their correct order | show 🗑
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| show | If the aquarium water became overheated, there is no control mechanism for bringing it back to the desired range
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| Does the aquarium heating system function using positive feedback or negative feedback? | show 🗑
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| show | An integrating center located away from the affected cell or tissue receives information, evaluates it, and decides whether to send a chemical or electrical signal to initiate a response
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| Long distance reflex pathways involve two control systems: | show 🗑
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| Local control occurs when | show 🗑
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| Three primary components of a response loop | show 🗑
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| What is a threshold? | show 🗑
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| What is tonic control? | show 🗑
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| What is antagonistic control? | show 🗑
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| What is acclimatization? | show 🗑
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| What is acclimation? | show 🗑
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| show | Feedbackloops are homeostatic which means that they are designed to keep the system at or near a set point so that the variable being regulated is relatively stable.
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| show | It occurs when the response reinforces the stimulus rather than decreasing or removing it. Its response sends the regulated variable further from its normal value and needs some intervention or event outside the loop to stop the response.
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| What is oxytocin? | show 🗑
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| show | A reflex that evolved for the body to predict or anticipate that a change is about to occur. It starts the response loop. ex. salivation reflex
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| show | Stimulus, receptor, sensory neuron (afferent pathway) CNS integrating center, efferent neuron, release of neurotransmitter onto target cell (effector) causes a respons
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| What is the pathway of a simple endocrine reflex? | show 🗑
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| What is the pathway of a neurohormone reflex? | show 🗑
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| What is an example of a simple neural reflex? | show 🗑
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| show | Secretion of oxytocin in response to suckling
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| What is an example of a simple endocrine reflex? | show 🗑
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