Explain the significance of the dens (odontoid process) which is present on the second cervical vertebra (C2 or axis)
What will be an ideal response?
The dens (odontoid process) is a superior projection that emerges from the body of the second cervical vertebra. The dens fits up into the vertebral foramen of the atlas, forming the atlantoaxial joint. The structure of the dens in the atlas allows the atlantoaxial joint to rotate the neck, such as to shake your head to say "no."
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Contrast appositional and interstitial growth of cartilage
A) Appositional growth adds more fibers, and interstitial growth adds more interstitial fluid around the fibers. B) Appositional growth adds more fibers, and interstitial growth adds more ground substance around the fibers. C) Appositional growth adds new layers to the outside, and interstitial growth enlarges the cartilage from within. D) Appositional growth enlarges the cartilage from within, and interstitial growth adds new layer to the outside. E) Apposition growth enlarges cartilage length-wise, and interstitial growth enlarges cartilage width-wise.
The medial and lateral plantar nerves, and the sural nerve are all branches of the
A) common fibular nerve. B) femoral nerve. C) obturator nerve. D) tibial nerve. E) coccygeal plexus.
During bone repair, how long does the stage of the bony callus last?
A. 12-24 hours B. 3-4 months C. 1-2 years D. 8-10 days E. 1-2 weeks
The preganglionic fibers of the autonomic nervous system are cholinergic fibers
Indicate whether the statement is true or false