Definition: The term "Arenicola" refers to a small, bony, curved bone in the upper extremity of the hand or forearm. Definition: An Arenicola (or Arenica) is a small bone that makes up a joint of the humerus (humerus), the shoulder blade. It's often found at the end of the humerus and can be compressed with the use of force, such as when doing things like pushing or lifting heavy weights. An Arenicola is also known by its English name "the humeral neck" since it's where the head meets the lower part of the humerus.
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