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Card 3 / 22: Visit this site ( http://openstaxcollege.org/l/handbone ) to explore the bones and joints of the hand. What are the three arches of the hand, and what is the importance of these during the gripping of an object?
Answer:
The hand has a proximal transverse arch, a distal transverse arch, and a longitudinal arch. These allow the hand to conform to objects being held. These arches maximize the amount of surface contact between the hand and object, which enhances stability and increases sensory input.
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Attribution:
OpenStax College. Anatomy & Physiology, OpenStax-CNX Web site. http://cnx.org/content/col11496/1.6/, Jun 11, 2014
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