Compare the stimuli of the three reflexes that are involved in the regulation of respiration.
What will be an ideal response?
The mechanoreceptor reflexes respond to changes in the volume of the lungs or to changes in arterial blood
pressure. The chemoreceptor reflexes respond to changes in the PCO2, pH, and PO2 of the blood and cerebrospinal fluid. The protective reflexes respond to physical injury or irritation of the respiratory tract.
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Platelets are capable of shrinking after the formation of a blood clot because they contain molecules of actin and ________.
Fill in the blank(s) with the appropriate word(s).
This figure illustrates bone growth in length at the epiphyseal plate. Zone "C" represents
A. zone of hypertrophy. B. zone of resting cartilage. C. bone tissue of the diaphysis. D. zone of proliferation. E. zone of calcification.
Which of the following is true regarding cortisol?
A) It stimulates glucose intake by most organs. B) It stimulates protein synthesis. C) It promotes breakdown of fat and protein. D) It promotes glycogen synthesis. E) It inhibits fat digestion.
In addition to secreting hormones, the pancreas also produces
A. white blood cells. B. sodium chloride. C. pancreatic juice. D. endorphins. E. prostaglandins.