Increased blood calcium levels result in increased
A) secretion of calcitonin.
B) osteoclast activity.
C) secretion of parathyroid hormone.
D) retention of calcium by the kidneys.
E) excitability of neural membranes.
A) secretion of calcitonin.
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Cranial nerves
A. arise from the brain. B. arise from the spinal cord. C. arise from the ganglia. D. arise from the organ innervated.
Vesicles are formed from
A) cell membrane. B) mitochondrial membrane. C) lysosomal membrane. D) nuclear membrane.
Based on what you know about bone growth, why are newborns so much more flexible than adults?
A. Their joints are still composed of cartilage. B. Osteoclast activity is greater than osteoblast activity. C. Their ligaments have not developed fully yet. D. The epiphysial plates are fused.
The process by which a sequence of thoughts and actions is repeated enough times for it to no longer require much conscious thought is called :