Which is a change in bone architecture or mass related to aging?
A. Loss of flexibility and increase in brittleness
B. Insufficient calcification
C. Demineralization
D. Reduction in the organic content of the matrix
E. All of the choices are correct.
Answer: E
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Which of the following constitutes the principal venous drainage of the thoracic organs?
A. The branches of the celiac trunk B. The azygos system C. The hepatic portal system D. The coronary and pulmonary veins E. The mesenteric circulation
Which of the following fractures would be the least likely to cause a spinal cord injury?
A. A fracture of vertebra C2 B. A fracture of vertebra T12 C. A fracture of vertebra C6 D. A fracture of vertebra T5 E. A fracture of vertebra L4
What structure passes through the intervertebral foramen?
A. Dorsal (posterior) Root Ganglion
B. Spinal cord
C. Spinal nerve
D. Vertebral Artery
Cristae are found in which of the following cell organelles?
A)Mitochondria B)Nucleus C)Cilia D)Ribosomes