Note: Please confirm the delivery time before placing the order (as stock prices change constantly).!

Human skeletal model is a jointed model sized like a humanoid (170CM tall) made of PVC material strung with metal wires. It is an ideal model for basic anatomy teaching. The arms and legs can be removed for research. It can be placed on a fixed metal frame, can be washed with water, does not break, and the material used for the human skeletal model is PVC.There are a total of 206 human bones, which are divided into trunk bones, skull bones, and limb bones based on their different locations. The bones are connected together to form the skeleton. (For example, the brain is protected by the skull, while the chest wall protects the heart and lungs.) Skeletal muscles cross one or more joints and attach to two or more bone surfaces. Under the control of the nervous system, skeletal muscles contract, pulling on the bones and producing various movements. The outer layer of the bone is dense and hard, called cortical bone; the interior of the bone is honeycomb-like, called cancellous bone; the cavity within the bone is called the bone marrow cavity, which is filled with bone marrow at its center. In fetuses and infants, the bone marrow is red bone marrow, serving as an organ for hematopoiesis. As age increases, the red bone marrow in the bone marrow cavities of long bones is gradually replaced by adipose tissue, turning into yellow bone marrow. Bones: Adults have a total of 206 bones. The bones are connected to each other to form the skeleton, providing support, movement, and protection for the body. Of the 206 bones, there are 23 skull bones, 51 trunk bones, and 5 types of limb bones, irregular bones, and air-filled bones.