24.When blood calcium is falling, the wrong statement is:a. Parathyroid hormone is secreted from parathyroid gland.b. Parathyroid hormone stimulates the activation of vitamin D.c. Parathyroid hormone stimulates Ca reabsorption in the Kidney.d. Parathyroid hormone enhances Ca absorption in the intestinee. Parathyroid hormone and vitamin D enhances osteoclast cells to break down bones and releasing Ca tothe blood

Fall in blood calcium levels means; Hypocalcemia: Blood calcium levels are mainly maintained by…

Answered: 4.When blood calcium is falling,

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter49: Endocrine Regulation

Section: Chapter Questions

Problem 3TYU

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Parathyroid hormone stimulate__________. a. bone breakdown b. bone deposition c. red blood cell formation d. all of the above
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If the human body is stressed, glucocorticoids: a. promote the breakdown of proteins in the muscles and bones. b. increase the amount of sodium reabsorbed from urine in the kidneys. c. decrease potassium secretion from the kidneys. d. decrease glucose uptake by cells in the nervous system. e. inhibit the synthesis of glucose from noncarbohydrate sources.
1. Vitamin D is important for bone health because it also directly performs which function of PTH? A. Increased osteoclast activity B. Decreased reabsorption of phosphate C. Increased absorption of calcium from the small intestine
1. a When blood calcium levels decrease below their normal levels, ____________ is released. A. osteoblastin B. calcitonin C. parathyroid hormone D. testosterone
Calcium deficiency causes a number of complications, many of which have a very negative impact on athletic performance. Why do you think calcium intake is low in the United States? What shifts in dietary intake/trends have lead to calcium deficiency, especially in children?
3. A) What results from hypersecretion of growth hormone before puberty? B) After puberty? C) Explain, in terms of hormonal effects, the reasons behind the two specific signs associated with hypersecretion of growth hormone after puberty.
1. parathyroid hormone increases the calcium in the blood by bone resoprtion. This hormone also increases the reabsorption of calcium in the loop of henle a. both are true c. only second is true b. both are false d. only first is true. 2. all of the following is an indication of decreased blood volume a. increased renal perfusion b. hyperosmolality c. decreased saliva production d. none of the choices e. hypernatremia 3. potassium produces a purple flame in atomic absorption mass spectrophotometry. To determine its concentration using ISE. The electrode should be coated with valincomycin a. both are true b. only first is true c. both are true d. only second is true 4. a 30 year old female patient who works in a BPO company was brought to the emergency room because she compalined of having palpitayions after drinking 3 cups of coffee she had a history of hypertension and recently had a fever and colds. because of her irregular breathing pattern, blood gas…
1. What does not occur when calcium levels fall below the normal range? A. Parathyroid hormone is released. B. Calcium uptake in bone is increased. C. Calcium reabsorption in the kidney is increased? D. Calcium uptake in the intestine increased. 2.Which term refers to a neural circuit that travels through the spinal cord but does not require the coordination of the brain A. reflex circuit B. reflex arc C. afferent circuit D. efferent circuit 3. In a lab a neuron is stimulated by various electrical charges with the following results: 10mV no action potential, 20 mV action potential, 30 mV action potential, 40 mV action potential. What is the threshold potential? A. 10 mV B. 20 mV C. 30 mV D. 40 mV
When blood calcium levels are low, PTH stimulates ________. a. urinary excretion of calcium by the kidneys b. a reduction in calcium absorption from the intestines c. the activity of osteoblasts d. the activity of osteoclasts
1. Enumerate and differentiate briefly the different forms of calcium in the blood. 2. What are the three hormones in the body which regulate the blood calcium level? What is the mechanism of action of each?
1. A patient comes to the clinic with the main complaint of fatigue accompanied with moderate weight gain and always feeling cold. After running the appropriate labs, you would find TSH to be _________________ and diagnose this patient with __________________. A. Higher than normal ; hypothyroidism B. Lower than normal ; hypothyroidism C. Lower than normal ; hyperthyroidism D. Higher than normal ; hyperthyroidism 2.Which mechanism of action is NOT common to both cortisol and growth hormone? A. Muscle building B. Promoting gluconeogenesis C. Mobilizing fatty acids

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