Which extension of the dura mater separates the two hemispheres of the cerebrum?
a) Falx cerebri
b) Falx cerebelli
c) Tentorium cerebelli
d) Tentorium cerebri
e) None of these choices
a
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Indicate whether the statement is true or false.
Cartilage tissues are likely to be slow in healing following an injury because
A) chondrocytes cannot divide. B) chondrocytes do not have direct blood supplies. C) cartilage cells are immersed in fluids. D) the intercellular material is semisolid.
Which of the following is not true regarding image formation?
A) The greatest amount of refraction occurs at the cornea. B) The focal distance must equal the distance between the center of the lens and the retina to form a sharp image. C) A round lens has a short focal distance. D) Images arrive at the retina upside down and reversed. E) To view a distant object the lens will become rounder.
The Frank-Starling law of the heart can be demonstrated when an individual takes a deep breath. This is because:
A. the heart expands during inhalation. B. the negative intrathoracic pressure induces a larger than normal venous return to the right atrium, thereby stretching the wall of the right ventricle. C. sympathetic impulses are sent to the heart during inspiration. D. both a and c occur.