Parallel curving ridges of dermis that shape the overlying epidermis into fingerprints
A. improve the grip of the hands.
B. are caused by the pattern of the reticular layer of the dermis.
C. are associated with thin skin.
D. decrease friction on surfaces where they are located.
E. tend to make the surface smooth.
A
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Most human movement falls into which category?
A. rectilinear B. curvilinear C. angular or rotational D. general
Hypoxia is:
A) reduced O2 levels B) increased O2 levels C) reduced CO2 levels D) increased CO2 levels E) any airway abnormality
During muscle contraction,
a. the Z lines move farther away from the thick filaments b. the A band becomes narrower c. the H zone becomes narrower or disappears d. the I band remains unchanged e. both b and c occur
Urea is passively reabsorbed down the osmotic gradient created by active Na+ reabsorption
Indicate whether the statement is true or false