Movement allowed in a pivot joint is known as ________.
A) biaxial movement
B) flexion
C) uniaxial rotation
D) extension
C) uniaxial rotation
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Which of the following does not arise from the embryonic mesoderm?
A. The nervous system B. The blood vessels C. The mesothelium D. The skeletal system E. The dermis
A light skinned person who is very cold may have a pale appearance. Which of the following is the best explanation for why this might be so?
A) The cold has slowed the movement of blood. B) The person's blood vessels in the dermis have undergone vasoconstriction (narrowing). C) The person is in fear of hypothermia (sever cold exposure). D) The person's blood vessels in the epidermis have undergone vasodilation (widening).
Which of the following does not apply to lysosomes?
a. They contain hydrolytic enzymes. b. They generate hydrogen peroxide. c. They aid in the breakdown of material that is taken into the cell through endocytosis. d. When they are abnormal, Tay-Sachs disease may result. e. They help remove damaged organelles.
Synovial fluid is
A. a watery fluid produced by capsular ligaments. B. an oily fluid produced by articular cartilage. C. a watery fluid produced by hyaline cartilage. D. an oily fluid produced by the synovial membrane.