【Product Description】 This is a life-size human skeletal model that meticulously replicates the structure of the cervical spine (neck bones). The design allows for the observation of the first to seventh cervical vertebrae, parts of the first and second thoracic vertebrae, spinal nerves, and vertebral arteries. The base includes an explanatory diagram of the "cutaneous sensory innervation of the upper limb (by Keegan)." 【Features of this Model】 1. Exquisite Realism: In addition to the bone shapes, the yellow nerve roots and red vertebral arteries are also reproduced. 2. Convenient Explanatory Diagram Included: The base features an illustration of the sensory dermatomes, which are important in clinical practice. 3. Versatile Use: Ideal for medical and student learning, explanations in chiropractic and osteopathic clinics, and as a reference for art drawing. 【Size】 Height: Approximately 18cm Base Width: Approximately 12cm 【Materials】 PVC, plastic, etc. 【Notes】 ※ Due to being a used item, there may be minor scratches and signs of use on the base and model. ※ When shipping, we will carefully package it with cushioning material.