Calcium is stored mainly in the ____ system
a. digestive
b. endocrine
c. integumentary
d. muscular
e. skeletal
E
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Which of the following is an accurate statement regarding regulation of pituitary hormone secretion by the hypothalamus?
a. all pituitary hormones are regulated by tropic hormones from the hypothalamus. b. all anterior pituitary hormones are regulated by a releasing hormone and release inhibiting hormone from the hypothalamus. c. all posterior pituitary hormones are regulated by a releasing hormone from the hypothalamus. d. all anterior pituitary hormones are tropic hormones. e. none of the above.
Histones are found in
A) nucleosomes. B) centromeres. C) lysosomes. D) vesicles. E) endosomes.
Explain the primary difference between endochondral ossification and intramembranous ossification
A) The primary difference is that in endochondral ossification, bone develops from a cartilage model, whereas in intramembranous ossification, bone develops from mesenchymal cells. B) The primary difference is that in endochondral ossification, bone develops from mesenchymal cells, whereas in intramembranous ossification, bone develops from a cartilage model. C) The primary difference is that in endochondral ossification, bone develops fast, whereas in intramembranous ossification, bone develops slowly. D) The primary difference is that in endochondral ossification, bone develops slowly, whereas in intramembranous ossification, bone develops fast. E) The primary difference is that endochondral ossification is embryonic bone development, whereas intramembranous ossification is post-natal bone growth.
An exaggerated curvature of the lumbar region is
A. lordosis. B. kyphosis. C. scoliosis. D. spina bifida. E. herniated disk.