Using proper joint terminology, list the name and position of each joint involved upon completion of the following multiple joint movement. Starting from the anatomical position, reach with your right arm and touch the ipsilateral side of your head with the palm of your hand.

Question

Quizplus · Accepted Answer

The Answer is To perform the described movement of reaching with your right arm and touching the ipsilateral (same side) of your head with the palm of your hand, several joints are involved, each moving in a specific way. Here is the list of the joints and their positions upon completion of the movement:

1. Glenohumeral Joint (Shoulder Joint): This ball-and-socket joint allows for a wide range of motion. In this movement, the right shoulder joint would be involved in:
- Flexion: The arm is raised anteriorly.
- Medial Rotation: The arm is rotated inward so that the palm faces the head.
- Abduction: The arm is moved away from the midline of the body to some extent as it is raised to touch the head.

2. Elbow Joint: This hinge joint allows for flexion and extension. In this movement, the right elbow joint would be involved in:
- Flexion: The forearm is bent towards the upper arm to bring the palm towards the head.

3. Radioulnar Joints (Proximal and Distal): These pivot joints allow for pronation and supination of the forearm. In this movement, the right radioulnar joints would be involved in:
- Supination: The forearm is rotated so that the palm faces anteriorly (upward) to touch the head.

4. Wrist Joint (Radiocarpal Joint): This ellipsoid joint allows for flexion, extension, abduction, and adduction. In this movement, the right wrist joint would be involved in:
- Slight Extension: The hand is bent back slightly at the wrist to allow the palm to make contact with the head.

Upon completion of the movement, the right arm's glenohumeral joint is flexed, medially rotated, and slightly abducted, the elbow is flexed, the radioulnar joints are supinated, and the wrist is slightly extended.

Using Proper Joint Terminology, List the Name and Position of Each