The partial pressure of carbon dioxide in the interstitial space of peripheral tissues is approximately
A) 35 mm Hg.
B) 45 mm Hg.
C) 55 mm Hg.
D) 70 mm Hg.
E) 100 mm Hg.
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Question 2) All of the following are true of the neural layer of the eye except that it
A) contains ganglion cells.
B) contains the photoreceptor cells.
C) contains bipolar cells.
D) is the innermost layer of the eyeball.
E) consists of dense fibrous connective tissue.
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Question 3) The partial pressure of oxygen in the interstitial space of peripheral tissues is approximately
A) 40 mm Hg.
B) 45 mm Hg.
C) 50 mm Hg.
D) 70 mm Hg.
E) 100 mm Hg.
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Question 4) The space between the iris and the lens is the
A) anterior chamber.
B) posterior chamber.
C) pupil.
D) scleral venous sinus.
E) vitreous body.
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Question 5) The partial pressure of carbon dioxide in venous blood is approximately
A) 40 mm Hg.
B) 45 mm Hg.
C) 50 mm Hg.
D) 70 mm Hg.
E) 100 mm Hg.
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Question 6) The eyelids are connected at the
A) palpebral fissure.
B) medial and lateral angles.
C) lacrimal caruncle.
D) chalazion.
E) conjunctiva.
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Question 7) The partial pressure of oxygen in arterial blood is approximately
A) 40 mm Hg.
B) 45 mm Hg.
C) 50 mm Hg.
D) 70 mm Hg.
E) 100 mm Hg.
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Question 8) What structure changes the shape of the lens for far and near vision?
A) aqueous humor
B) ciliary body
C) iris
D) extrinsic eye muscles
E) macula
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Question 9) Dalton's law states that
A) gas volume and temperature are directly proportional.
B) gas volume and pressure are inversely proportional.
C) the volume of gas that will dissolve in a solvent is proportional to the solubility of the gas and the gas pressure.
D) in a mixture of gases such as air, the total pressure is the sum of the individual partial pressures of the gases in the mixture.
E) gas pressure is inversely proportional to gas volume.
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Question 10) All of the following are true of the fibrous layer of the eye except that it
A) consists of the sclera and cornea.
B) provides mechanical support and some protection for the eye.
C) produces aqueous humor.
D) contributes substantial focusing power.
E) is where extrinsic eye muscles insert.
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