Multiple Choice
Which of the following structures protects the ends of bones at the joints?
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8. Joints
Introduction to Joints
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Which of the following digits contains only 2 phalanges?
A
Thumb
B
Middle finger
C
Ring finger
D
Index finger
Verified step by step guidance1
Understand that phalanges are the bones that make up the fingers and toes. Each finger typically has three phalanges: proximal, middle, and distal.
Recognize that the thumb is unique compared to the other fingers. It is composed of only two phalanges: a proximal phalanx and a distal phalanx.
Compare the thumb to the other fingers (index, middle, ring, and little fingers), which all have three phalanges each.
Identify that the thumb's structure allows for a greater range of motion and is crucial for grasping and manipulating objects.
Conclude that the thumb is the only digit among the options provided that contains only two phalanges.
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