EBK HUMAN BIOLOGY
11th Edition
ISBN: 9780100545939
Author: MCMILLAN
Publisher: YUZU
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Chapter 15, Problem 4CT
Secretion of the hormone ADH may decrease or stop if the pituitary’s posterior lobe is damaged, as by a blow to the head. This is one cause of diabetes insipidus. People with this form of diabetes excrete so much dilute urine that they may become seriously dehydrated. Where are the target cells of ADH?
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Secretion of the hormone ADH may decrease or stop if the pituitary’s posterior lobe is damaged, as by a blow to the head. This is one cause of diabetes insipidus. People with this form of diabetes excrete so much dilute urine that they may become seriously dehydrated. Where are the target cells of ADH?
The kidneys are important regulators of blood volume (and thus MAP) and the ionic composition and pH of plasma . The amount of water reabsorbed or lost is hormonally regulated. Both the amount of blood that is filtered (glomerular filtration rate) and the amount of water that is reabsorbed is determined by hormones binding with receptors. In order to understand why the level of any given hormone is elevated or low in the blood, it is necessary to think in terms of homeostasis loops for each hormone, and what the initial disturbance to homeostasis was. In other words “who started it”!
What STEROID hormone is elevated by increased activation of the RAS pathway?
The kidneys are important regulators of blood volume (and thus MAP) and the ionic composition and pH of plasma . The amount of water reabsorbed or lost is hormonally regulated. Both the amount of blood that is filtered (glomerular filtration rate) and the amount of water that is reabsorbed is determined by hormones binding with receptors. In order to understand why the level of any given hormone is elevated or low in the blood, it is necessary to think in terms of homeostasis loops for each hormone, and what the initial disturbance to homeostasis was. In other words “who started it”!
What NON STEROID hormone is produced at the end (but as part of) of the RAS pathway?
Chapter 15 Solutions
EBK HUMAN BIOLOGY
Ch. 15 - Distinguish among hormones, neurotransmitters,...Ch. 15 - A hormone molecule binds to a receptor on a cell...Ch. 15 - Which hormones produced in the posterior and...Ch. 15 - Prob. 4RQCh. 15 - Give two examples of feedback control of hormone...Ch. 15 - __________ are molecules released from a signaling...Ch. 15 - Hormones are produced by ______________. a....Ch. 15 - ADH and oxytocin are hypothalamic hormones...Ch. 15 - _______ has effects on body tissues in general. a....Ch. 15 - Which of the following stimulate the secretion of...
Ch. 15 - _________lowers blood sugar levels; ____________...Ch. 15 - The pituitary detects a rising hormone...Ch. 15 - Second messengers assist _________. a. steroid...Ch. 15 - Match the hormone source with the closest...Ch. 15 - Match the endocrine control concepts.Ch. 15 - Addisons disease develops when the adrenal cortex...Ch. 15 - A physician sees a patient whose symptoms include...Ch. 15 - Prob. 3CTCh. 15 - Secretion of the hormone ADH may decrease or stop...
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- Figure 16.14 Goiter, a disease caused by iodine deficiency, results in the inability of the thyroid gland to form T3 and T4 . The body typically attempts to compensate by producing greater amounts of TSH. Which of the following symptoms would you expect goiter to cause? a. Hypothyroidism, resulting in weight gain, cold sensitivity, and reduced mental activity. b. Hyperthyroidism, resulting in weight loss, profuse sweating and increased heart rate. C. Hyperthyroidism, resulting in weight gain, cold sensitivity, and reduced mental activity. d. Hypothyroidism, resulting in weight loss, profuse sweating and increased heart rate.arrow_forwardThe adrenal cortex of a patient who has lost a large volume of blood will increase secretion of aldosterone. What effect will this increased secretion have on the patient’s blood concentrations of sodium and potassium ions?arrow_forwardTwo men are diagnosed with diabetes insipidus. One didn’t have the disorder until he suffered a stroke. The other had a withstood the condition all his life, and it had never responded to exogenous ADH despite the presence of normal ADH receptors. What mightbe the cause of the diabetes insipidus in the two men?arrow_forward
- How would it be possible to have the normal amount of a hormone circulating in the blood yet have symptoms that indicate a shortage of that hormone? Give an example.arrow_forwardDiabetes insipidus has been identified in two males. One person did not have the condition until he had a stroke. The other had lived with the condition his whole life, and despite the existence of normal ADH receptors, it had never reacted to exogenous ADH. What might be the cause of the two men's diabetes insipidus? Provide your references.arrow_forwardExcess ACTH stimulation would result in which of the following effects? (select all that apply) - increased testosterone - increased epinephrine - increased cortisol - increased aldosteronearrow_forward
- A person is experiencing dehydration due to diminished ability of kidneys to conserve water leading to excessive water loss. Deficiency of which hormone and damage to its source gland could possibly cause this? 1.Vasopressin : Adenohypophysis 2.ACTH : Neurohypophysis 3.ACTH: Adrenal cortex 4.ADH : Hypothalamusarrow_forwardInsulin is a peptide hormone that is lacking from the body in some forms of diabetes mellitus. Why do people with this type of diabetes inject insulin rather than consuming an insulin pill?arrow_forwardWhat hormone is released from the parathyroid glands? What is the function? What are the effects of the parathyroid gland on the bones; kidney and intestines Know the functions of aldosterone shown in figure 16.14 and Table 16.4 What stimulates aldosterone release? What does it do to the kidney? What does it do to blood sodium and fluid levels? What is the function of cortisol? What are its target organs and effects? What is cushing disease disease? What is addisons disease? Epinephrine and norepinephrine What stimulates its release What are its target organs and effects? What happens if there is hypersecretion? Know figure 16.16 What hormones causes the short term stress response? What occurs in the body in the short term stress response? What hormones causes the long term stress response? What occurs in the body in the short term stress response? Know figure 16.18 What is the function of insulin? What cells release it? What is the function of glucagon? What cells…arrow_forward
- Which statement about antidiuretic hormone is TRUE? Antidiuretic hormone increases urine production. Antidiuretic hormone reduces urine production. Antidiuretic hormone is made by the kidneys. Excessive secretion of antidiuretic hormone causes dehydration.arrow_forwardUnder which of the following conditions would you expect an increase in antidiuretic hormone secretion? a. An individual ingests excess water. b. The posterior pituitary is removed from an individual because of a tumor. c. An individual is rescued after three days in the desert without food or water. d. An individual with normal kidneys is producing a large volume of urine.arrow_forwardA patient is observed to have symptoms that are consistent with increased concentrations of epinephrine in the blood, including a rapid heart rate, anxiety, and elevated fatty acid concentrations. However, the circulating epinephrine concentrations are measured and found to be in the normal range. What might explain this?arrow_forward
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