HUMAN PHYSIOLOGY: AN INTEG ACCESS C
8th Edition
ISBN: 9780134714837
Author: Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 25, Problem 13RQ
Match the following brain areas with the response(s) that each controls. Brain areas may control one response, more than one response, or none at all. Some responses may be associated with more than one brain area.
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Define homeostasis. What happens when homeostasis fails?
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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:
Use the word bank below to answer the following questions (answers can be used more than once):
endocrine
nervous
Which system is better to respond to the following:
ignoring a constant low-level harmless stimulus (ex. a buzzing air conditioner)
responding to a quick sudden threat
maintaining a consistent signal response for months
targeting one specific small tissue in a specific part of the body
Which type of stimuli is represented by a change in blood levels of critical ions or nutrients, such as oxygen or glucose?
hormonal
humoral
neural
muscular
Chapter 25 Solutions
HUMAN PHYSIOLOGY: AN INTEG ACCESS C
Ch. 25.2 - If venous PO2 decreases as exercise intensity...Ch. 25.3 - In Figure 25.8b, why does the line for mean blood...Ch. 25.5 - The active vasodilator nerves to the skin secrete...Ch. 25 - Name the two muscle compounds that store energy in...Ch. 25 - Prob. 2RQCh. 25 - Prob. 3RQCh. 25 - Prob. 4RQCh. 25 - Prob. 5RQCh. 25 - What is meant by the term oxygen deficit, and how...Ch. 25 - Prob. 7RQ
Ch. 25 - In endurance events, body temperature can reach...Ch. 25 - Prob. 9RQCh. 25 - Prob. 10RQCh. 25 - Prob. 11RQCh. 25 - Prob. 12RQCh. 25 - Match the following brain areas with the...Ch. 25 - Specify whether each of the following parameters...Ch. 25 - Why doesnt increased venous return during exercise...Ch. 25 - Diagram the three theories that explain why the...Ch. 25 - Prob. 17RQCh. 25 - Explain how exercise decreases blood glucose in...Ch. 25 - Prob. 19RQCh. 25 - Prob. 20RQCh. 25 - The following graph shows left ventricular...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following statements is true? Chemical messengers within cells are always the main determinant of the effector response. Dual innervation is always present in all organs and glands; one branch enhances the function or secretion, while the other branch inhibits it. The beating of the heart is regulated only by the sympathetic division. Some blood vessels contain alpha adrenergic receptors that cause vasoconstriction in the presence of epinephrine, whereas others have beta adrenergic receptors that cause vasodilation in the presence of epinephrine.arrow_forwardWhich of the following statements is CORRECT in describing the positive feedback control systems in our body? Group of answer choices The response counteracts the stimulus, shutting off the response loop. The response reinforces the stimulus, sending the variable farther from the set-point. The response is able to move the variable closer to the set-point. The response is able to move the variable farther from the set-point by suppressing the stimulus.arrow_forwardWhich one of the following best illustrates a primary reinforcer? A. Water when you're thirsty B. The sight of a chocolate meringue pie C. Money D. A warm smile from your bossarrow_forward
- A somatic complaint and an act of aggressive behavior are both examples of an internalizing syndrome. true falsearrow_forwardSelect all features of the nervous system. Uses neurotransmitters transported through blood Responses have a long duration effect Cannot act over long distances V Responses have a short duration effect Responses take a longer time Can have targets that are in distant locations in the body Has a rapid response timearrow_forwardIn 5-7 sentences. Provide a narrative overview of the function of the receptor including: The extracellular signal that acts as the ligand for the receptor The physiological response that is induced The benefits of this pathway to the cell/organismarrow_forward
- Positive feedback loops are used in chemical messaging in the body. Below is a list of steps that describe how a positive feedback system works in chemical messaging. The list is out of order. Placed the list in the proper order. 1. A sensor in a persons finger senses a change in the bloodstream. 2. The chemical messenger triggers the production of a specialized protein in the finger in response to the original signal. 3. A chemical messenger is released from the brain and travels to the finger. 4. As the specialized protein is made in the finger, it triggers the production of even more specialized protein. 5. The brain determines that conditions are no longer in homeostasis.arrow_forwardWhat is the basic difference between a local homeostatic response and a reflex?arrow_forwardList the different types of communication signals, and giveexamples of eacharrow_forward
- Which of the following best describes the sympathetic nervous system? i) Associated with stressful situations ii) Norepinephrine may be involved iii) Associated with voluntary responses i only O ii only Oi and ii only i and iii only O i, ii, and iiiarrow_forwardWhich of the following statements summarizes how the sympathetic nervous system responds to stress? Select an answer from the options below The sympathetic nervous system slows heart rate, lowers blood pressure, and increases digestive and elimination processes. The sympathetic nervous system sends a signal to the endocrine system to release the calming hormone cortisol. The sympathetic nervous system works with the central nervous system to calm the body in an attempt to conserve energy. The sympathetic nervous system increases heart rate, respiration, and blood pressure; stops digestive and eliminative processes; and releases hormones into the bloodstream.arrow_forwardSelect the statements that correctly describe negative feedback pathways. 1. A sensor/receptor is required to monitor and limit levels. 2. A sensor/receptor is unnecessary to monitor and limit levels. 3. Feedback contributes to homeostasis. 4. Feedback prevents homeostasis. 5. Feedback stimulates the effector to continue to do the same thing. 6. Feedback stops the effector from doing one thing and stimulates it to do the opposite. 7. When the target level for a hormone is reached, feedback results in an increase of that hormone being released. 8. When the target level for a hormone is reached, feedback results in a reduction of that hormone being released. Record your answers in ascending (lowest to highest) order.arrow_forward
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