Human Anatomy (8th Edition) - Standalone book
8th Edition
ISBN: 9780321883322
Author: Frederic H. Martini, Robert B. Tallitsch
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 5RC
When sex hormone production increases, bone production
(a) slows down.
(b) increases.
(c) both increases and decreases.
(d) is not affected.
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3) Parathyroid hormone:
a) is secreted when blood calcium levels are too high.
b) is required for the synthesis of collagen fibers.
c) stimulates osteoclasts to break down bone tissue.
d) stimulates cells in the epiphyseal plate to divide.
Osteoclast activity decreases
a) Growth hormone (GH)
b) Calcitonin
c) Sex steroids
d) Parathormone (PTH)
If the release of parathyroid hormone (PTH) INCREASES, what happens to a) osteoclast activity and b) Ca levels in the blood
1) a) decreases; b) increases
2) a) increases; b) decreases
3) a) decreases; b) decreases
4) a) increases; b) increases
Chapter 5 Solutions
Human Anatomy (8th Edition) - Standalone book
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- You’ve studied both bone growth and hormonal effects. Which gonadal hormone promotes epiphyseal closure in both males and females, and what is the effect of epiphyseal closure?arrow_forwardWhich of the following hormones are released when blood calcium levels fall? Question 97 options: a) Calcitonin b) Thyroxin c) Hydroxyapatite d) Parathyroid hormonearrow_forwardBone remodeling in adults is regulated and directed mainly by (a) growth hormone, (b) thyroid hormones, (c) sex hormones, (d) mechanical stress, (e) PTH.arrow_forward
- Describe the process by which bone lengthens?arrow_forwardKing Egbert VI is falling ill. His calcium concentration is dropping to dangerously low levels. Parathyroid hormone (PTH) is released and blood calcium levels begin to rise. Shortly after, PTH release slows. Is this an example of a positive or negative feedback mechanism and what is the initial stimulus? a) Positive feedback; reduced PTH b) Negative feedback; increase PTH release c) Positive feedback; decline in calcium release d) Negative feedback; low calcium e) Negative feedback; reduced PTHarrow_forwardWhich hormone is responsible for gigantism and acromegaly?arrow_forward
- Growth hormone is administered to people who have pituitary dwarfism. Parents wanting their normal children to be taller have requested the treatment for them. Do you think this is a wise request? Why or why not?arrow_forward_____1_____ is the hormone produced by the parathyroid gland that causes bone resorption; ______2______ is the hormone produced by the parathyroid gland that increases deposition of bone matrix.A: 1) Calcitonin ; 2) PTHB: 1) Calcitonin ; 2) EstrogenD: 1) PTH ; 2) CalcitoninE: 1) PTH ; 2) CholecalciferolF: 1) RANK-L ; 2) OPGarrow_forwardOsteoblasts have abundant receptors for what two hormones? Why?arrow_forward
- Why might a person suffering from osteoporosis benefit from increased calcium ingestion?arrow_forwardWhat effect does calcitonin have on the calcium concentrations of bone? A. ) no effect on bone calcium B.) decreases bone calcium C.) stimulates bone osteoclasts D.) increases bone calciumarrow_forwardList the Hormones That Favor Increased Bone Resorption and DecreasedBone Mass?arrow_forward
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