After completing a marathon on a particularly warm day, Dave consumes four liters of water. Soon after, he begins to feel nauseous and starts vomiting. What is likely happening to Dave?
A) hypoproteinemia; unusually low levels of plasma proteins
B) obligatory water loss
C) dehydration
D) hyponatremia; very low extracellular sodium ion concentration
D
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Choose the anatomical topic and definition that is not correctly matched.
A) Gross anatomy: study of structures visible to the eye. B) Microscopic anatomy: study of structures too small to be seen by the naked eye. C) Cytology: study of the structures in a particular region. D) Embryology: study of the changes in an individual from conception to birth.
Robert, a surfer, has a mole that has changed its shape and size. His doctor, applying the ABCDE) rule, diagnosed a melanoma. What do the letters ABCDE) represent?
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What three stimuli control vasopressin secretion? The most potent stimulus for vasopressin release is ________.
What will be an ideal response?
Which of the following statements about the syncytiotrophoblast is false?
A. It invades the maternal tissues that compose the endometrium of the uterus. B. It is nonantigenic, so that it triggers no immune response. C. It forms the developing embryo. D. It forms lacunae. E. It is composed of a nondividing, multinucleated cell.