Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Chapter 34, Problem 1FFT
Summary Introduction
To understand: If the endocrine regulation is slower than neural regulation and if such slow regulation is benefitted in the enhanced development of the system.
Introduction: The endocrine system has endocrine glands that produce hormones. Hormones are signaling messengers secreted by glands into the bloodstream reaching the target cells to produce an action in the body. It mainly regulates several processes such as
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Hormone release and regulation is a complex interplay of control systems, feedback pathways and the concentration of circulating substances. Demonstrate your understanding of how negative feedback systems work by considering what would happen if the usual mechanisms no longer applied. You may like to think about an ectopic source of adrenocorticotropic hormone (ACTH), as secreted from a small cell carcinoma of the lung, as an example. In your explanation of how negative feedback systems can be derailed, describe how hormone/s released from the target endocrine organ usually regulate the feedback loop.
Explain the basis of the fact that nervous control is rapid but of short-duration, whereas hormonal control takes time to start but the effects last a long time. How would body function change if the rate of hormone degradation increased? Decreased?
Explain how the chemical nature of the plasma membrane acts on the two chemical categories of hormones, and thus the type of response each hormone can induce in a target cell. Be sure to thoroughly describe the two types of cellular responses.
Chapter 34 Solutions
Loose Leaf For Integrated Principles Of Zoology
Ch. 34 - Outline Bertholds first endocrine experiment. What...Ch. 34 - Prob. 2RQCh. 34 - Prob. 3RQCh. 34 - What is the importance of feedback systems in the...Ch. 34 - Give two examples of invertebrate hormones that...Ch. 34 - Explain how the three hormones involved in insect...Ch. 34 - Name seven hormones produced by the anterior...Ch. 34 - Prob. 8RQCh. 34 - What is the evolutionary origin of the pineal...Ch. 34 - What are endorphins and enkephalins? What are...
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- How could the origin of endocrine control systems lie in ordinary cellular events? How might the earliest multicellular organisms have evolved some sort of endocrine coordination?arrow_forwardA female patient presents to a clinician feeling tired, hot and sweaty, losing weight and having mood swings. After discussion the clinician suspects Graves' disease. Explain how knowledge of feedback loops in the relevant endocrine pathway might help to diagnose Graves' disease, including the possible underlying causes and how the patient might be treated if Graves' disease is confirmed?arrow_forwardA female patient presents to a clinician feeling tired, hot, and sweaty. losing weight and having mood swings. After discussion, the clinician suspects Graves' disease. Explain how knowledge of feedback loops in the relevant endocrine pathway might help to diagnose Graves' disease, including the possible underlying causes and how the patient might be treated if Graves' disease is confirmed? a detailed essay answer on this pleasearrow_forward
- Part of the "fountain of youth" solution may lie in hormonal control. Explain which hormone and how this would work.arrow_forwardPropose an explanation for why defects in a particular hormone cascade pathway observed in patients typically affect the final gland in the pathway rather than the hypothalamus or pituitary.arrow_forwardList two or three factors that make it advantageous for peptide hormonesto be synthesized as inactive prohormones that are activated by proteolyticcleavage.arrow_forward
- “Since endocrine systems are the components of homeostatic feedback loop, co-ordination can be evident in hormone secretion” – explain this statement with an example.arrow_forwardDescribe the function(s) of Endocrine signaling and explain a possible medical consequence if this type of signaling malfunctioned. You may give a specific example of an actual medical condition OR describe it in more generalized terms.arrow_forwardSignals carried by hormones must eventually be terminated. Describe several different mechanisms for signal termination.arrow_forward
- Which of the following statements is not true of the endocrine system? Select one: A. Most of its components are not anatomically connected, unlike most other systems of the body. O B. It is one of two major regulatory systems of the body O C. It is an important regulator of homeostatic mechanisms. O D. The nervous and endocrine systems often overlap in function. O E. It is composed of glands that secrete chemical messengers through ducts into the blood.arrow_forwardHello, I do not understand these questions, can I get help with them, please? Below are 3 statements, explain if each is true/false and why (VERY brief statement) #1: A tropic hormone always increases the size of an endocrine gland. #2: Spontaneous action potentials in the heart are primarily triggered by flux of K+ into cells through If channels. #3: Increasing the frequency of action potentials in motor units generates more tension than increasing the number of motor units.arrow_forwardDraw a table to differentiate Nervous System from the Endocrine System in terms of the following: 1. Molecules released 2. Site of action 3. Types of target cells 4. Onset of action 5. Duration of actionarrow_forward
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Great Glands - Your Endocrine System: CrashCourse Biology #33; Author: CrashCourse;https://www.youtube.com/watch?v=WVrlHH14q3o;License: Standard Youtube License