Principles of Anatomy and Physiology
15th Edition
ISBN: 9781119329398
Author: Gerard J Tortora, Bryan Derrickson
Publisher: John Wiley & Sons Inc
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Textbook Question
Chapter 7, Problem 9CP
Why is the sphenoid bone called the keystone of the cranial floor?
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Chapter 7 Solutions
Principles of Anatomy and Physiology
Ch. 7 - On What basis is the skeleton grouped into the...Ch. 7 - Give examples of long, short, flat, and irregular...Ch. 7 - Prob. 3CPCh. 7 - What is the purpose of the skull?
Ch. 7 - 5. What structures pass through the supraorbital...Ch. 7 - 6. How do the parietal bones relate to the cranial...Ch. 7 - What structures form the zygomatic arch?Ch. 7 - 8. What structures pass through the hypoglossal...Ch. 7 - 9. Why is the sphenoid bone called the keystone of...Ch. 7 - The ethmoid bone forms which other cranial...
Ch. 7 - 11. Which bones form the hard palate? Which bones...Ch. 7 - What structures make up the nasal septum?Ch. 7 - Which foramina and fissures are associated with...Ch. 7 - 14. Define the following: foramen, suture,...Ch. 7 - What are the functions of the hyoid bone?Ch. 7 - 16. What are the functions of the vertebral...Ch. 7 - Describe the four curves of the vertebral column.Ch. 7 - What are the three main parts of a typical...Ch. 7 - What are the principal distinguishing...Ch. 7 - How do the atlas and axis differ from the other...Ch. 7 - Describe several distinguishing features of...Ch. 7 - What are the distinguishing features of the lumbar...Ch. 7 - How many vertebrae fuse to form the sacrum and...Ch. 7 - 24. What bones form the skeleton of the thorax?
Ch. 7 - 25. What are the functions of the bones of the...Ch. 7 - What is the clinical significance of the xiphoid...Ch. 7 - How are ribs classified?Ch. 7 - Jimmy is in a car accident. He can't open his...Ch. 7 - 2. Bubba is a tug-of-war expert. He practices day...Ch. 7 - Prob. 3CTQ
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- Why are ruptured intervertebral discs more common in lumbar vertebrae, and dislocations and fractures more common in cervical vertebrae?arrow_forwardFrom which intervertebral foramen do the lumbar and sacral plexuses arise?arrow_forwardWhich bones of the skull are paired, meaning both a right and left bone exist?arrow_forward
- Some health practitioners claim that the cranial bones are moveable and that they are able to move them to treat a variety of conditions. Is this likely to be true in an adult? Why or why not?arrow_forwardWhich vertebral curvature abnormality is the most serious and why?arrow_forwardgiven list of answer : CranialRostral PlantarCaudalProximalSuperficial DeepDistalSaggitalMedial fill in the blank with given answer above 1.The accessory carpal bone is one the ................. aspect of the carpus 2.The intestines are ................ to the heart 3.The tarsus is ..................... to the carpus 4. A papercut is ......................... 5.A stab wound is ...................... 6.The Phalanges are ................... to the stifle.arrow_forward
- Why is a sharp blow to the lower back part of the skull extremely dangerous? Provide specific consequences.arrow_forwardwhy the intervertebral discs do not occur between Cl and the base of the skull and between vertebrae C1 and C2?arrow_forwardAs the neonate’s brain grows, it could quickly exceed the original dimensions of the original cranial cavity. In which two ways can bone accommodate this growth and change of brain tissue? How can the osseous material on the inside of the cranium be removed?arrow_forward
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