Which hormone inhibits bone growth?
A. Calcitonin
B. Estrogen and testosterone
C. Thyroid hormone
D. Parathyroid hormone
E. Growth hormone
D
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The ________ in the carotid sinuses and aortic arch detect increases in blood pressure.
Fill in the blank(s) with the appropriate word(s).
Arrange the following events of coagulation in proper sequence.(1) Prothrombin ? thrombin(2) Fibrinogen ? fibrin(3) Activation of factor XII(4) Formation of prothrombinase
A. 1, 2, 3, 4 B. 2, 4, 3, 1 C. 4, 3, 1, 2 D. 3, 2, 4, 1 E. 3, 4, 1, 2
Once a structure is fully grown and mature, it will probably
A. down-regulate its receptors for growth hormone, as it no longer receives as much of the ligand. B. up-regulate its receptors for growth hormone, as it no longer needs to continue to grow at a fast rate. C. up-regulate its receptors for growth hormone, as it no longer receives as much of the ligand. D. down-regulate its receptors for growth hormone, as it no longer needs to continue to grow at a fast rate.
The anterior boundary of the "rib cage" is/are the ________.
A. costal cartilages B. thoracic vertebrae C. sternum D. skin E. ribs