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The knee joint is the largest trochlear joint in the human body with the most complex structure and function.RONTEN Human Anatomy Knee Model A flexible life-size knee model that explains the knee joint. It is formed by the reinforcement of bone, articular cartilage, cruciate ligament in the joint cavity, meniscus, synovial fluid, joint capsule and extra-articular ligaments. The knee joint consists of the lateral...

The eye is a spherical body with a diameter of about 23mm, which is the visual organ for people to observe objective things. About 80% of the external information we normally receive comes from vision. The eye is mainly composed of the refractive adjustment system and the visual perception system. The eye is like a fully automatic camera. The refractive system composed of the...

The brain is located in the cranial cavity, with uneven surface, and consists of four parts: telencephalon, diencephalon, cerebellum, and brainstem (including midbrain, pons, and medulla oblongata). The morphological structure of the brain is relatively complex, different anatomical parts have different functions, and the occurrence of lesions in different parts will also cause different symptoms and signs. Understanding and mastering these anatomical relationships and...