Medical science elbow joint movement model can be used in school biology teaching equipment body elbow joint structure detail

Teaching content:
     The demonstration will deepen the student’s concept of the biceps and triceps starting and ending points. The muscles must cross the elbow joint and the elbow joint movement is understood to be relatively fixed in the position of the elbow-humerus, and to be able to understand mechanically the lever action that rotates around the axis to allow rotation.
Presentation method:
    The skeleton model is mounted on the chassis support, and then the upper and lower muscles are hooked to the fixed positions of the two ends of the skeleton model. Here’s the demo. Hold the dial with one hand. The model hand can be pulled up and down in one hand, that is, to observe the relationship between the diastole and contraction of the biceps and triceps and the extension movement, and to understand the rotating lever action caused by the rotation of the axis.