Which of the following structures is from the vascular layer of the eyeball?
Retina
Sclera
Iris
Cornea
Iris
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Increased temperature results in decreased O2 unloading from hemoglobin
Indicate whether the statement is true or false
Intrapleural pressure must be ________ intrapulmonary pressure to keep the lungs inflated.
A. greater than B. less than C. the same as
Why does the near point of accommodation decrease as a person ages?
A) The lens becomes clouded with age, and light doesn't pass through as well. B) The lens becomes less elastic with age and doesn't change shape as easily. C) The lens shape changes with age causing the focal point to shift. D) The lens becomes more brittle with age causing light to refract erratically.
Stimulation of the aortic baroreceptors reflexively results in
A) stimulation of the cardioaccelerator center in the brain. B) increased sympathetic stimulation of the heart. C) increased activity by the parasympathetic nervous system. D) stimulation of the vasoconstrictive center. E) increased heart rate.