What is the correct order for the vertebral regions, from superior to inferior?
A. Cervical - thoracic - sacral - coccygeal - lumbar
B. Thoracic - sacral - lumbar - thoracic - coccygeal
C. Cervical - thoracic - lumbar - sacral - coccygeal
D. Thoracic - coccygeal - cervical - lumbar - sacral
E. Thoracic - cervical - lumbar - coccygeal - sacral
C
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Compared to the extracellular fluid, cytosol contains
A) a higher concentration of potassium ions. B) a lower concentration of dissolved proteins. C) almost no glycogen. D) a higher concentration of amino acids. E) almost no lipids.
Which of the following improved the vertebral bone density of the rats?
A) calcitonin B) saline C) estrogen D) FSH E) both calcitonin and estrogen
Enlargements of the spinal cord occur
A) near the posterior median sulcus. B) adjacent to the anterior median fissure. C) in those spinal segments that control the limbs. D) in the thoracic region. E) in the sacral region.
When during photoreception is ATP required?
A) activation B) absorbing a photon C) release of neurotransmitters D) depolarization of the membrane E) conversion of 11-trans retinal back to 11-cis retinal