The first step leading to angiotensin II production is the secretion of what by the kidneys?
A. Angiotensinogen
B. Renin
C. Angiotensin converting enzyme
D. Calcitriol
E. Angiotensin I
Answer: B
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The somatic nervous system consists of nerve fibers that connect the CNS to the ________, whereas the autonomic nervous system consists of fibers that connect the ________.
A. heart and intestines; CNS to the cardiac and smooth muscles B. skin and skeletal muscles; brain to the spinal cord C. visceral organs; CNS to the skin and skeletal muscles D. skin and skeletal muscles; CNS to the visceral organs
Which actions happen in the stratum granulosum? a: Keratinizationb: Cell flatteningc: Plasma membranes thickend: Plasma membranes become less permeable
A. a, b, c, d B. c, d C. a, c, d D. b, c, d E. a, c
When a section of the resting neuron is stimulated:
a. sodium ions rush into the cell b. sodium ions rush out of the cell c. the interior of the cell becomes slightly positive d. both A and C above
What blood vessels directly supply the kidneys?
a. aorta and vena cava b. superior and inferior vena cava c. renal artery and renal vein d. nephron artery and nephron vein e. thoracic artery and thoracic vein