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In the context of the human hand, which two joints are known as Carpometacarpal and Intermetacarpal Joints?

a. Metacarpophalangeal and Proximal Interphalangeal Joints
b. Distal Radioulnar and Radial Carpal Joints
c. Distal Interphalangeal and Proximal Interphalangeal Joints
d. Wrist and Elbow Joints

User Secumind
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1 Answer

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Final answer:

The Carpometacarpal joint involves articulation between a carpal bone and a metacarpal bone, mainly notable in the thumb, while Intermetacarpal joints provide stability between metacarpal bones. Option b. is the closest match to discussing these joints as it includes the radiocarpal joint of the wrist, which involves carpal bones.

Step-by-step explanation:

In the context of the human hand, the Carpometacarpal joint is the articulation between one of the carpal bones in the distal row and a metacarpal bone of the hand. This joint is particularly notable in the thumb. The Intermetacarpal joints are between the metacarpal bones primarily to provide stability and aid in hand movement. The Metacarpophalangeal (knuckle) joints are found between the distal end of the metacarpals and the proximal phalanges. None of the provided options (Wrist and Elbow Joints, Distal Radioulnar and Radial Carpal Joints, Metacarpophalangeal and Proximal Interphalangeal Joints, Distal Interphalangeal and Proximal Interphalangeal Joints) directly refer to the Carpometacarpal and Intermetacarpal Joints. However, option b. discusses the radiocarpal joint, which is part of the wrist complex and is related to the Carpometacarpal joint as it involves the carpal bones. None of the options perfectly match the question, but option b. is the closest as the radiocarpal joint is associated with carpal bones involved in the Carpometacarpal joint.

User Monoceres
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