Lesioning which of the following will block the negative feedback effects of thyroid hormone? -Medial MPN...
Lesioning which of the following will block the negative
feedback effects of thyroid hormone?
-Medial MPN
-Lateral PVN
-Medial PVN
-SON -None
Homework Answers
Answer: Option C is correct
Explanation:
The H-P-T axis maintains optimal levels of thyroid hormones in the
system.
When elevated levels of thyroid hormones found in the blood, the paraventricular neurons located in the medial and periventricular portions of the hypothalamus are inhibited.
This leads to a reduced stimulus to thyroid gland resulting in low
levels of thyroxine secretion
Add Answer to:
Lesioning which of the following will block the negative
feedback effects of thyroid hormone?
-Medial MPN...
The patient has an autoimmune reaction which causes hypersecretion of thyroid hormone T3 and T4. This...
The
patient has an autoimmune reaction which causes hypersecretion of
thyroid hormone T3 and T4. This effects the secretion of other
hormones in this pathway due to?
Left:0:35:09 Younis Yusuf: Attempt 1 A patient has an autoimmune reaction which causes hypersecretion of thyroid hormones (T3 and T4). This affects the secretion of other hormones in this pathway due to: 1) antagonistic pathways 2) positive feedback 3) permissive effect 4) negative feedback Save 8 MacBook Pro
Choose one of these hormones: Glucagon, Insulin, or Thyroid hormone. What factors will stimulate the release...
Choose one of these hormones: Glucagon, Insulin, or Thyroid hormone. What factors will stimulate the release of this hormone? What are the metabolic effects of this hormone? (Be specific) Is this hormone regulated by a positive or negative feedback mechanism? Explain why.
1. Explain why unlike negative feedback, positive feedback is not a common feature of hormone pathways...
1. Explain why unlike negative feedback, positive feedback is not a common feature of hormone pathways that help to maintain homeostasis glands origin and function? Ca2+ level near the set point? individual and an individual with diabetes mellitus 2. Explain how iodine affects the functioning of the thyroid 3. How do the two fused glands of the pituitary gland differ in 4. How does calcitonin and parathyroid hormones maintain 5. Explain the control of blood glucose in both a healthy...
Question 6 (1 point) Which of the following statements are accurate? Hormone A causes Hormone B...
Question 6 (1 point) Which of the following statements are accurate? Hormone A causes Hormone B to be produced. As hormone B increases in abundance, it causes less hormone A to be produced. This is an example of positive feedback. Hormone A stops Hormone from being produced. As hormone B abundance decreases, Hormone A is no longer produced. This is an example of negative feedback Hormone A causes Hormone B to be aduced. Hormone B increases the production c ormone...
Page 1 Question 6 (1 point) Which of the following statements are accurate? Hormone A causes...
Page 1 Question 6 (1 point) Which of the following statements are accurate? Hormone A causes Hormone B to be produced. As hormone B increases in abundance, it causes less hormone A to be produced. This is an example of positive feedback. Hormone A stops Hormon decreases, Hormone Ais feedback From being produced. As hormone B abundance e r produced. This is an example of negative Hormone A causes Hormone B to be produced. Hormone production of Hormone C. As...
1. Following an illness, a patient becomes hypocalcemic. Which of the following negative feedback compensatory mechanisms...
1. Following an illness, a patient becomes hypocalcemic. Which of the following negative feedback compensatory mechanisms will increase the calcium in her blood? a. The pituitary will decrease its secretion of T4. b. The thyroid will increase secretion of calcitonin. c. The pituitary will decrease its secretion of parathyroid hormone (PTH). d. The parathyroid will increase its secretion of PTH. A person with Graves' disease likely has all the following EXCEPT: an autoimmune disease Hashimoto's thyroiditis goiter. a heart rate...
Which of the following is not an amine hormone? Select one: A. atropine B. adrenaliine C....
Which of the following is not an amine hormone? Select one: A. atropine B. adrenaliine C. dopmaine D. thyroid
Name Case Study: Endocrine system A 50 year old male had a total thyroidectomy followed by thyroid hormone-replacem...
Name Case Study: Endocrine system A 50 year old male had a total thyroidectomy followed by thyroid hormone-replacement therapy. 36 hours later he developed muscle cramps in his arms and hands and mild tetany The following tests were performed urinary calcium urine phosphorous 20 mg/dL (normal: 5 to 15 mg/dl) 0.1 g/day (normal: 0.075 to 1.0 mg/day) 6.0 mg/dL (normal is 8.5 - 10.5 mg/dL) plasma calcium plasma phosphorous 5.0 mg/dL (2.7-4.5 mg/dL) Calcium gluconate and vitamin D (calcitriol) were...
1.The thyroid gland: shrinks when a person has goiter, which is caused by an iodide deficiency....
1.The thyroid gland: shrinks when a person has goiter, which is caused by an iodide deficiency. produces thyrotropin-releasing hormone. sequesters iodide from the diet, and synthesizes thyroxine and T3. produces thyroid-stimulating hormone. stores thyroxine for up to months in the thyrotropes. 2. Increasing the concentrations of which of the following would cause the largest increase in calcium concentrations in the extracellular fluid? activating osteoblasts increasing the plasma concentrations of parathyroid hormone and calcitonin activating the chondrocytes increasing the plasma concentrations...
Which of the following statements is FALSE? O A Negative feedback reduces the gain of an...
Which of the following statements is FALSE? O A Negative feedback reduces the gain of an amplifier DB. Op-amp circuits usually employ voltage sensing at the output OC. Negative feedback can lead to instability D Negative feedback reduces the sensitivity of the gain of an amplifier to changes in the parameters of the amplifier's O E. Negative feedback increases the input resistance and reduces the output resistance of an amplifier
The
patient has an autoimmune reaction which causes hypersecretion of
thyroid hormone T3 and T4. This effects the secretion of other
hormones in this pathway due to?
Left:0:35:09 Younis Yusuf: Attempt 1 A patient has an autoimmune reaction which causes hypersecretion of thyroid hormones (T3 and T4). This affects the secretion of other hormones in this pathway due to: 1) antagonistic pathways 2) positive feedback 3) permissive effect 4) negative feedback Save 8 MacBook Pro
1. Explain why unlike negative feedback, positive feedback is not a common feature of hormone pathways that help to maintain homeostasis glands origin and function? Ca2+ level near the set point? individual and an individual with diabetes mellitus 2. Explain how iodine affects the functioning of the thyroid 3. How do the two fused glands of the pituitary gland differ in 4. How does calcitonin and parathyroid hormones maintain 5. Explain the control of blood glucose in both a healthy...
Question 6 (1 point) Which of the following statements are accurate? Hormone A causes Hormone B to be produced. As hormone B increases in abundance, it causes less hormone A to be produced. This is an example of positive feedback. Hormone A stops Hormone from being produced. As hormone B abundance decreases, Hormone A is no longer produced. This is an example of negative feedback Hormone A causes Hormone B to be aduced. Hormone B increases the production c ormone...
Page 1 Question 6 (1 point) Which of the following statements are accurate? Hormone A causes Hormone B to be produced. As hormone B increases in abundance, it causes less hormone A to be produced. This is an example of positive feedback. Hormone A stops Hormon decreases, Hormone Ais feedback From being produced. As hormone B abundance e r produced. This is an example of negative Hormone A causes Hormone B to be produced. Hormone production of Hormone C. As...
1. Following an illness, a patient becomes hypocalcemic. Which of the following negative feedback compensatory mechanisms will increase the calcium in her blood? a. The pituitary will decrease its secretion of T4. b. The thyroid will increase secretion of calcitonin. c. The pituitary will decrease its secretion of parathyroid hormone (PTH). d. The parathyroid will increase its secretion of PTH. A person with Graves' disease likely has all the following EXCEPT: an autoimmune disease Hashimoto's thyroiditis goiter. a heart rate...
Name Case Study: Endocrine system A 50 year old male had a total thyroidectomy followed by thyroid hormone-replacement therapy. 36 hours later he developed muscle cramps in his arms and hands and mild tetany The following tests were performed urinary calcium urine phosphorous 20 mg/dL (normal: 5 to 15 mg/dl) 0.1 g/day (normal: 0.075 to 1.0 mg/day) 6.0 mg/dL (normal is 8.5 - 10.5 mg/dL) plasma calcium plasma phosphorous 5.0 mg/dL (2.7-4.5 mg/dL) Calcium gluconate and vitamin D (calcitriol) were...
Which of the following statements is FALSE? O A Negative feedback reduces the gain of an amplifier DB. Op-amp circuits usually employ voltage sensing at the output OC. Negative feedback can lead to instability D Negative feedback reduces the sensitivity of the gain of an amplifier to changes in the parameters of the amplifier's O E. Negative feedback increases the input resistance and reduces the output resistance of an amplifier
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