The shape of the lens is controlled by the
A. cornea.
B. retina.
C. ciliary body.
D. choroids.
Answer: C
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Receptors stimulated by changes in temperature are called ________.
Fill in the blank(s) with the appropriate word(s).
In the 16th century, William Harvey discovered evidence that
A) arteries and veins are linked by capillaries. B) the liver manufactures blood. C) blood is recirculated instead of consumed. D) the cardiovascular system is an open system. E) the cardiovascular system transports blood and air.
The ________ are a series of irregular muscular folds formed on the internal surface of the ventricles.
A) trabeculae carneae B) papillary muscles C) chordae tendineae D) moderator bands E) pectinate muscles
Atrial Natriuretic Peptide increases the numbers of ______ ions lost to the urine.
A) Sodium B) Magnesium C) Bicarbonate D) Potassium E) Chloride