The most superficial meningeal layer is the ________.
A. epidural sinus
B. skull
C. dura mater
D. pia mater
E. arachnoid layer
Answer: C
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a. angiotensin-secreting cells b. carotid baroreceptors c. the adrenal cortex d. the adrenal medulla e. vasopressin-secreting cells
The dens (odontoid process) is a feature of which of the following bones?
A. Occipital bone B. Mandible C. First cervical vertebra D. Second cervical vertebra E. Temporal bone
If an isotope of oxygen has 8 protons, 10 neutrons, and 8 electrons, its mass number is
A) 26. B) 16. C) 18. D) 8. E) 12.
The ________ is formed by the union of the cystic duct and the common hepatic duct
A) common bile duct B) common hepatic duct C) hepatopancreatic sphincter D) left hepatic duct E) duodenal ampulla