A 7-year-old patient presents with a quadrant of teeth showing abnormal formation of both enamel and dentin. All his other teeth appear clinically normal. Radiographically, the affected teeth can be described as "ghost teeth.". He has:
a. Regional odontodysplasia
b. Dens evaginatus
c. Dentin dysplasia
d. Ectodermal dysplasia
e. Cleidocranial dysplasia
A
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All of the following statements regarding the blood–brain barrier are true EXCEPT:
A) Highly lipid-/fat-soluble molecules such as barbiturates rapidly cross through the BBB into the brain. B) Large molecules do not easily pass through the BBB. C) Highly electrically charged molecules speed up across the BBB. D) Hypertension can open up the BBB.
Ca++ ________________________________________________________
Fill in the blank(s) with correct word
The actual mechanical means of combining alloy and mercury is ____________
a. mixing b. amalgamation c. trituration d. Either b or c
What is the innermost layer of a blood vessel called?
A. Tunica fascia B. Tunica media C. Tunica intima D. Tunica adventitia