LSC ANATOMY & PHYSIOLOGY LL W/ACCESS
4th Edition
ISBN: 9781264893119
Author: McKinley
Publisher: MCG CUSTOM
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Question
Chapter 7, Problem 9DYKB
Summary Introduction
Introduction :
The hormone that helps to regulate blood calcium levels is calcitonin. In response to high blood calcium levels, the thyroid gland specifically, its parafollicular cells releases calcitonin. Calcitonin inhibits osteoclast activity primarily. Furthermore, calcitonin stimulates the kidneys to increase calcium loss in the urine. As a result, blood calcium levels decrease.
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Students have asked these similar questions
Draw a negative feedback loop for blood calcium regulation.
Falling calcium level signals release of parathyroid hormone from the parathyroid glands. Calcium is released from bones, increased uptake by digestive system.
Rising calcium level signals release of calcitonin from the thyroid. Blood calcium is taken up into bone tissue.
How does Parathyroid Hormone elevate blood calcium levels?
by increasing the amount of CA2+ removed from the blood by the kidneys
by decreasing the amount of CA2+ absorbed from the gut into the blood
by increasing the number and activity of osteoclasts
by increasing the number and activity of osteoblasts
Hypocalcemia, or low levels of calcium, may result in brittle nails, broken bones, muscle cramps, mental confusion, and seizures.Select the FOUR actions below that would help the body to maintain homeostasis if blood calcium levels are low.
Low levels of blood calcium are detected by thyroid gland.
Low levels of blood calcium are detected by parathyroid gland.
Parathyroid hormone is released.
Calcitonin is released.
Bone is broken down to release calcium.
Muscle is broken down to release calcium.
Calcium uptake by the kidneys and intestines increases.
Calcium uptake by the kidneys and intestines decreases.
Chapter 7 Solutions
LSC ANATOMY & PHYSIOLOGY LL W/ACCESS
Ch. 7.1 - Describe the composition of compact bone and...Ch. 7.1 - In what three locations of the body do you find...Ch. 7.2 - What two minerals are stored in bone, and what are...Ch. 7.2 - What are several examples of flat bones in the...Ch. 7.2 - Prob. 5WDYLCh. 7.2 - Prob. 6WDYLCh. 7.2 - Where is red bone marrow found in the adult...Ch. 7.2 - What are the functions of the osteoprogenitor...Ch. 7.2 - What organic and inorganic substances compose bone...Ch. 7.2 - What are the major components of an osteon?
Ch. 7.2 - What are the primary ways that hyaline cartilage...Ch. 7.3 - Where do interstitial and appositional growth of...Ch. 7.4 - Prob. 13WDYLCh. 7.4 - Briefly describe the process by which a long bone...Ch. 7.5 - Prob. 15WDYLCh. 7.5 - What is bone remodeling, where does it occur, and...Ch. 7.5 - Prob. 17WDYLCh. 7.6 - Prob. 18WDYLCh. 7.6 - Prob. 19WDYLCh. 7.6 - Prob. 20WDYLCh. 7.7 - Prob. 21WDYLCh. 7.8 - Prob. 22WDYLCh. 7 - _____ 1. Which bone is formed from intramembranous...Ch. 7 - Prob. 2DYKBCh. 7 - Prob. 3DYKBCh. 7 - Prob. 4DYKBCh. 7 - Prob. 5DYKBCh. 7 - _____ 6. Which long bone structure is correctly...Ch. 7 - _____ 7. Which statement is correct about an...Ch. 7 - Prob. 8DYKBCh. 7 - Prob. 9DYKBCh. 7 - Prob. 10DYKBCh. 7 - Prob. 11DYKBCh. 7 - Prob. 12DYKBCh. 7 - Prob. 13DYKBCh. 7 - Prob. 14DYKBCh. 7 - Prob. 15DYKBCh. 7 - Prob. 16DYKBCh. 7 - Prob. 17DYKBCh. 7 - Prob. 18DYKBCh. 7 - Prob. 19DYKBCh. 7 - Prob. 20DYKBCh. 7 - Prob. 1CALCh. 7 - Prob. 2CALCh. 7 - Prob. 3CALCh. 7 - To identify the approximate age of skeletal...Ch. 7 - In your anatomy and physiology laboratory, you...Ch. 7 - The traditional surgical procedure to treat...Ch. 7 - A fireman fell from a ladder while fighting a fire...Ch. 7 - Prob. 3CSL
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Similar questions
- To determine: The effect of calcitonin on blood calcium levels when the release of this hormone is controlled by negative feedback mechanism.arrow_forwardWhich of the following hormones stimulates bone and muscle growth? Prolactin, Vasopressin, Thyroid Hormone, or Oxytocinarrow_forwardWhich of the following statements about calcium homeostasis is FALSE? *PTH stimulates calcium uptake by bonesThe parathyroid gland secretes PTH in response to low calcium levels.The thyroid gland secretes calcitonin in response to high blood calcium levels.Calcitonin targets bone cells..Calcitonin and PTH are antagonistic hormones (have opposing functions)..arrow_forward
- Which of the following is most likely to be releasedwhen blood calcium levels are elevated?a. thyroxineb. calcitoninc. parathyroid hormoned. vitamin Darrow_forwardWhy does the release of cortisol during the stress response have a negative effect on bone density? Cortisol increases serum calcium to fuel muscle contraction during the fight or flight responseCortisol reduces estrogen production and triggers early menopause Cortisol draws calcium out of the bones to increase serum calcium to fuel muscle contraction during the fight or flight response Cortisol decreases calcium to fuel muscle contraction during the fight or flight responsearrow_forwardCalcitriol and parathyroid hormone are: synergistic hormones antagonistic hormonesarrow_forward
- A patient has a tumor on the parathyroid that is increasing its hormone production. What effects might you see? (More than one answer may be correct) Osteoporosis Low circulating calcium levels Hyperactivity of the muscles Low blood pressurearrow_forwardWhich of the following hormones increases calcium concentration in the blood? Parathyroid hormone Thymosin Calcitonin Thyroid hormonearrow_forwardWhich of the following hormones requires iodine to be active? both calcitriol and parathyroid hormone O parathyroid hormone calcitriol estrogen O thyroid hormonearrow_forward
- Explain how you would interpret the graph in Figure to show that PTH and calcitonin act in a complementary way to control blood calcium level.arrow_forwardWhich of the following is false? parathyroid hormone is produced by the parathyroid gland parathyroid hormone increases urination of calcium Oparathyroid hormone stimulates osteoclasts parathyroid hormone increases calcium concentration in the bloodarrow_forwardWhy is it that hormones act only on their target organs? Name hormones that have most body organs as their target organs. Hypothyroidism and hyperthyroidism may lead to marked increase/ decrease, respectively, in body weight. Why is that so? Discuss the similarities and differences between thyroid hormone and steroid hormones. Illustrate the secretion of insulin hormonearrow_forward
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