EBK HUMAN BIOLOGY
11th Edition
ISBN: 8220100545931
Author: MCMILLAN
Publisher: Cengage Learning US
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Chapter 15, Problem 1CT
Addison’s disease develops when the adrenal cortex does not secrete enough mineralocorticoids and glucocorticoids. President John F. Kennedy was diagnosed with the disease when he was a young man. Before he started treatment with hormone replacement therapy, he was hypoglycemic and lost weight. Which missing hormone was responsible for his weight loss? How might Addison’s disease have affected his blood pressure?
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In Graves' disease, the body attacks the thyroid gland tissue and causes it to overproduce thyroid hormones, resulting in elevated blood levels of T3 and T4.
Which of the following statements would be TRUE?
Since blood levels of thyroid hormones are elevated, the hypothalamus would not release TRH and the Anterior Pituitary Gland would release more TSH.
Since blood levels of thyroid hormones are elevated, the hypothalamus would release more TRH and the Anterior Pituitary Gland would then stop releasing TSH.
Since blood levels of thyroid hormones are elevated, the hypothalamus would not release TRH and the Anterior Pituitary Gland would not release TSH.
Since blood levels of thyroid hormones are elevated, the hypothalamus would not release TSH and the Anterior Pituitary Gland would not release TRH.
Which one of the following statements about T3 is FALSE?
1) It is thought to be the most active thyroid hormone.
2) It may be elevated to a greater extent than T4 in hyperthyroidism.
3) It is not bound to serum proteins.
4) It is commonly decreased in patients with nonthyroidal illness.
no references, just homework.
For our patient John with diabetes type II, he can make insulin but his body cells can be resistant to this insulin. Note: activated insulin receptors will activate glucose receptors.
How is John’s diabetes related to the endocrine system?
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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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
- A physician sees a patient whose symptoms include sluggishness, depression, and intolerance to cold. After eliminating other possible causes, the doctor diagnoses a hormone problem. What disorder fits the symptoms? Why does the doctor suspect that the underlying cause is a malfunction of the anterior pituitary gland?arrow_forward1) Hormone pathologies often manifest with elevated or lower hormones. The underlying cause may differ. What symptoms would be associated with hyperthyroidism? 2) Autoimmune disease in which auto-antibodies stimulate the TSH receptor (TSHR) on the thyroid gland. How would this affect levels of TRH, TSH, and TH? Draw out the H-P-T axis to illustrate changes in each hormone. 3) What symptoms would be associated with hypothyroidism? 4) How could this disease be treated? When the thyroid cells are destroyed, they cannot make hormones anymore and TH replacement needs to be given.arrow_forwardTake thyroid hormones as an example of hormones and their properties. Thyroid hormone is highly bound to proteins in the blood. What is the benefit of such protein binding? What effect does protein binding have on the activity of the hormone? Name a gland other than the thyroid gland that is involved in regulating thyroid hormone production?arrow_forward
- Insulin 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_forwardThe endocrine system is composed of glands that secrete hormones that regulate the activity of different body cells. The pituitary gland is often called the "master gland" because it controls the activities of other glands. Discuss a disorder associated with either hypo or hypersecretion of a specific hormone secreted by the pituitary gland. Include in your discussion the answer to the following: What effect will an increase or decrease in production have on the target organs?What signs and symptoms are associated with this condition and how is it treated?arrow_forwardThyroid hormones are important in regulating the body’s basal metabolic rate. Thyroid hormones are lipid-soluble and have a long half-life.What are the advantages and disadvantages of a long half-life for thyroidhormones, compared with a short half-life?arrow_forward
- State what the different parts of the pituitary gland are called and how they differ. b) Explain the physiological significance of the portal system of the hypothalamus and pituitary gland c) What hormones are produced by different parts of the pituitary gland? Enter in the image below. What effects do these hormones have on the body? Give at least one example of a function for each hormone.arrow_forwardA person develops a rare autoimmune condition during early adulthood which targets only the cells in the thyroid responsible for the release of calcitonin. Which of the following is most likely to describe the patient's blood Ca2+ concentration? This person is asymptomatic and has normal blood Ca" levels. This person has hypocalcemia (low blood Ca) because osteoclasts are not resorbing bone. This person has hypocalcemia (low blood Ca) because of reduced Ca absorption in the gastrointestinal tract This person has hypercalcemia (high blood Ca) because osteoblasts are not depositing bone.arrow_forwardSomatostatinarrow_forward
- Describe the functions of the following hormones: TSH, thyroxine, calcitonin, PTH, ACTH, cortisol, insulin, glucagon, hGH, ADH, epinephrine, and aldosterone.arrow_forward2. State which hormone is probably responsible for each physiological phenomenon described below and explain why. a) Blood glucose levels remained constant even though someone went 20 hours without eating or drinking. b) Heart rate and breathing rate increase when someone is awoken by a loud noise in the middle of the night. c) A grown man's jaw and forehead become thick and deformed.arrow_forwardGraves disease is a type of hyperthyroidism that results in an overactive thyroid. Bloodwork results indicating hyperthyroidism would show elevated amounts of which hormones? V A) T4 (thyroid hormone) B) TSH C) TRHarrow_forward
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