Fingers:
- PIP joints (proximal interphalangeal joints): These are the joints located between the first and second phalanges (bones) of each finger.
- DIP joints (distal interphalangeal joints): These are the joints located between the second and third phalanges of each finger.
- MCP joints (metacarpophalangeal joints): These are the joints located at the base of each finger, where the finger bones connect to the hand bones (metacarpals).
Hands:
- Wrist joint (radiocarpal joint): This joint connects the forearm bones to the hand bones.
- Midcarpal joints: These joints connect the wrist bones (carpals) to each other.
- CMC joints (carpometacarpal joints): These joints connect the wrist bones to the hand bones (metacarpals).
Wrists:
- Radiocarpal joint: As mentioned above, this joint connects the forearm bones to the hand bones.
- Midcarpal joints: These joints connect the wrist bones (carpals) to each other.
- CMC joints: These joints connect the wrist bones to the hand bones (metacarpals).
Arms:
- Elbow joint: This joint connects the upper arm bone (humerus) to the forearm bones (radius and ulna).
- Shoulder joint (glenohumeral joint): This joint connects the upper arm bone (humerus) to the shoulder blade (scapula).
Shoulders:
- Shoulder joint (glenohumeral joint): As mentioned above, this joint connects the upper arm bone (humerus) to the shoulder blade (scapula).
- Sternoclavicular joint: This joint connects the collarbone (clavicle) to the sternum (breastbone).
- Acromioclavicular joint: This joint connects the collarbone (clavicle) to the shoulder blade (scapula).
Back:
- Thoracic spine: This part of the spine is located in the upper back and connects the neck to the lower back.
- Lumbar spine: This part of the spine is located in the lower back and connects the upper back to the pelvis.
In summary, when playing the piano, you use a wide range of joints throughout your body, including your fingers, hands, wrists, arms, shoulders, and back. Proper technique and posture are essential to prevent strain or injury while playing the instrument.