Which of the following is the most abundant positively charged ions in extracellular fluids?
A. H+
B. Ca2+
C. Na+
D. K+
Answer: C
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For intramembranous ossification to take place, which of the following is necessary?
A) A bone collar forms around the cartilage model. B) An ossification center forms in the fibrous connective tissue. C) The cartilage matrix begins to deteriorate. D) A medullary cavity forms.
The ______________ is the part of the descending aorta that extends from the diaphragm to the common iliac arteries.
A. ascending aorta B. aortic arch C. thoracic aorta D. abdominal aorta
Which of the following does not produce chewing movements of the mandible?
A. Masseter B. Lateral pterygoid C. Medial pterygoid D. Thyrohyoid E. Temporalis
What cell type is indicated by number 1?
A. Astrocyte B. Oligodendrocyte C. Ependymal cell D. Satellite cell E. Microglial cell