Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Textbook Question
Chapter 6, Problem 16CYU
When describing endochondral ossification, some say “bone chases cartilage.” What does that mean?
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When describing endochondral ossification, some say “bone chases cartilage.” What does that mean?
A race between two runners is often used as an analogy to describe the mechanism of endochondral ossification. Review endochondral ossification. In endochondral ossification, who are the two runners? Did each runner begin the race at the same time? Who is in the lead? How does the race end?
I have some ideas but cannot decide. I was first thinking condrocytes and osteoblasts with osteoblasts finishing first with the compact bone, but then I was thinking of blasts and clasts as one builds and one removes. Also, I thought, well maybe, cartilage and osteoblasts.
Which type of ossification process begins with a hyaline cartilage model that has two ossification centers called the primary and secondary ossification center. In this process the cartilage model is replaced with bone except at the articular cartilages and the epiphyseal plates. An example of a bone that develops by this process is the humerus.
growth of the articular cartilage
growth from a hyaline cartilage model
intramembranous ossification
endochondral ossification
epiphyseal growth
Chapter 6 Solutions
Anatomy & Physiology
Ch. 6 - Which type of cartilage is most plentiful in the...Ch. 6 - What two body structures contain flexible elastic...Ch. 6 - Cartilage grows by interstitial growth. What does...Ch. 6 - What are the components of the axial skeleton?Ch. 6 - Contrast the general function of the axial...Ch. 6 - What bone class do the ribs and skull bones fall...Ch. 6 - What is the functional relationship between...Ch. 6 - What two types of substances are stored in bone...Ch. 6 - Describe two functions of a bones marrow cavities.Ch. 6 - Are crests, tubercles, and spines bony projections...
Ch. 6 - How does the structure of compact bone differ from...Ch. 6 - Which membrane lines the internal canals and...Ch. 6 - Which component of bone-organic or inorganic-makes...Ch. 6 - Prob. 14CYUCh. 6 - Bones dont begin with bone tissue. What do they...Ch. 6 - When describing endochondral ossification, some...Ch. 6 - Where is the primary ossification center located...Ch. 6 - As a long bone grows in length, what is happening...Ch. 6 - If osteoclasts in a long bone are more active than...Ch. 6 - Which stimulus-PTH (a hormone) or mechanical...Ch. 6 - How does an open fracture differ from a closed...Ch. 6 - How do bone growth and bone remodeling differ?Ch. 6 - Which bone disorder is characterized by excessive...Ch. 6 - What are three measures that may help to maintain...Ch. 6 - Prob. 25CYUCh. 6 - Which is a function of the skeletal system? (a)...Ch. 6 - A bone with approximately the same width, length,...Ch. 6 - The shaft of a long bone is properly called the...Ch. 6 - Sites of hematopoiesis include all but (a) red...Ch. 6 - An osteon has (a) a central canal carrying blood...Ch. 6 - Prob. 6RQCh. 6 - The flat bones of the skull develop from (a)...Ch. 6 - The remodeling of bone is a function of which...Ch. 6 - Bone remodeling in adults is regulated and...Ch. 6 - Prob. 10RQCh. 6 - Wolffs law is concerned with (a) calcium...Ch. 6 - Prob. 12RQCh. 6 - Prob. 13RQCh. 6 - Prob. 14RQCh. 6 - Compare bone to cartilage tissue relative to its...Ch. 6 - Describe in proper sequence the events of...Ch. 6 - Osteocytes residing in lacunae of osteons of...Ch. 6 - As we grow, our long bones increase in diameter,...Ch. 6 - Describe the process of new bone formation in an...Ch. 6 - Compare and contrast controls of bone remodeling...Ch. 6 - Yolanda is asked to review a bone slide that her...Ch. 6 - Remember Mrs. DeStephano? When we last heard about...Ch. 6 - Remember Mrs. DeStephano? When we last heard about...Ch. 6 - Remember Mrs. DeStephano? When we last heard about...Ch. 6 - Remember Mrs. DeStephano? When we last heard about...Ch. 6 - Remember Mrs. DeStephano? When we last heard about...Ch. 6 - Remember Mrs. DeStephano? When we last heard about...Ch. 6 - Remember Mrs. DeStephano? When we last heard about...
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- If bleached human bones found lying in the desert were carefully examined, would osteons be present? How about osteocytes and a marrow cavity?arrow_forwardExplain why bone remodeling is important, and give its stepsarrow_forwardThe partial displacement of a bone from its joint is known as_________________arrow_forward
- The hollow center of an osteon (Haversian system) provides space for what vital part of compact bone tissue? a. Marrow b. collagen fibers c. a blood vessel d. osteocytesarrow_forwardFor the process of endochondral ossification, describethe formation of the following structures: cartilagemodel, bone collar, calcified cartilage, primaryossification center, medullary cavity, secondaryossification center, epiphyseal plate, epiphyseal line,and articular cartilagearrow_forwardGive a one-sentence description of the two ways bone is ossified and give an example of each. Give at least one example of: a freely moveable (synovial) joint, a slightly moveable (cartilaginous) joint, an immovable (fibrous) joint.arrow_forward
- Which of the following is unique to cancellous bone tissue? a)osteons b)lacunae c)canaliculi d)trabeculaearrow_forwardBone deposition (formation) occurs where bone is injured or added strength is needed. During this time, there will e the most abundant levels of which bone cells? a) Osteoclasts b) Osteoblasts c) Chondrocytesarrow_forward1) Compact bone is made of concentric rings of osteocytes called : a) acunae b) osteons . c) canaliculiarrow_forward
- Describe in proper sequence the events of endochondral ossification.arrow_forwardConsidering how a long bone develops, what are thesimilarities and differences between a primary and asecondary ossification center?arrow_forwardIn detail, what is the normal process of osteogenesis for compact and spongy bone using the three different types of bone cells and their functions? Compare the different osteocytes in both compact and spongy cells are affected in osteoporosis. How does organic material like calcium and phosphorus are affected in osteoporosis.?arrow_forward
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