Scapulohumeral rhythm involves ________ of the scapula and ________ of the humerus.
A. downward rotation, extension
B. downward rotation, abduction
C. upward rotation, abduction
D. abduction, adduction
C. upward rotation, abduction
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During severe dehydration, blood pressure rises.
Answer the following statement true (T) or false (F)
Sexual differentiation of the embryo is normally determined by:
A. the number of chromosomes, with males having 22 pairs and females having an extra pair of XX chromosomes. B. the presence of two X chromosomes, which causes the primordial testes to degrade. C. the presence of one Y chromosome, which causes the primordial ovaries to degrade. D. the presence of the Y chromosome, which directs the undifferentiated gonads to develop into testes (when there is one X chromosome present as well). E. hormones produced by the placenta.
The ________ gland is located deep between the cerebral hemispheres attached to the roof of the third ventricle.
Fill in the blank(s) with the appropriate word(s).
In the following CT of the chest, the arrow points to the:
A) arch of the azygos vein. B) arch of the aorta. C) left atrium. D) left ventricle. E) pulmonary trunk.