Why would an infant with colic be suffering from respiratory alkalosis?
What will be an ideal response?
If the infant is uncomfortable and cries forcefully for long periods of time, this would be similar to hyperventilation. Hyperventilation would cause respiratory alkalosis because the infant is losing carbon dioxide rapidly.
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Drugs called calcium channel blockers may be used to lower blood pressure by causing arteries to vasodilate. How do you suppose these drugs work?
A. They prevent calcium from entering the sarcoplasmic reticulum of smooth muscle. B. They stimulate the calcium pump in smooth muscle, thus removing calcium from the calmodulin. C. They prevent calcium from exiting the sarcoplasmic reticulum in skeletal muscle. D. They prevent calcium from entering cardiac muscle, thus slowing down the heart rate. E. They prevent calcium from entering smooth muscle, thus allowing the muscle to relax.
Select all that apply. Which tissues are developing embryonic limbs composed of?A) MesodermB) EctodermC) EndodermD) Mesenchyme
What will be an ideal response?
Which of these could be a cause of hypertrophy of the adrenal cortex?
A. autoimmune destruction of receptors for adrenocorticotropic hormone (ACTH) B. autoimmune destruction of hypothalamic cells that secrete corticotropin-releasing hormone C. injection of an excess of cortisol D. destruction of the anterior pituitary by a stroke E. excessively rapid clearance of cortisol from the circulation
Patients with osteoporosis often suffer ________ fractures of the vertebral bodies due to loss of bone mass.
A. greenstick B. epiphyseal C. compression D. transverse E. spiral