Popular Science Education

Beating human heart (3D animated model)

Liver model and liver tissue model (medical 3D section model)

Color-differentiated waist and lower limb skeleton (medical 3D model)

The formation of new blood vessels (3D medical schematic)

Muscle anatomy (3D microscopic structure diagram)

Human tracheal structure (3D medical model with annotations)

$Spiral fracture (medical pathology 3D model)$

Spiral fracture (medical pathology 3D model)

Layered cubic structure diagram of squamous tissue on the skin

$Pathological types of fractures$

Pathological types of fractures

Layered cubic structure diagram of squamous epithelial tissue

Lymph node anatomical tissue (3D sectional structure diagram)

Layered cubic structure diagram of epidermal tissue

Osteosclerosis accompanied by endogenous cartilage (medical pathology 3D model)

Bone tissue anatomy with marked details

The process of wound healing (microscopic 3D sectional view)

Smoking and non-smoking lungs (3D model of medical pathology comparison)

Types of human teeth (medical 3D models)

Synaptic transmission in frontal cortex (medical 3D schematic)

The nervous system is composed of a large number of neurons. These neurons are not connected by protoplasm in structure, only in contact with each other, and the site of contact is called a synapse. Due to the different contact sites, synapses can be mainly divided into three categories: axon cytoplasmic synapses; Axonal dendritic synapse; Axon axon synapse. The axon terminals of a neuron repeatedly branch and swell into cup-shaped or spherical shapes, known as synaptic bodies, which come into contact with the cell bodies or processes of postsynaptic neurons. A presynaptic neuron can form synapses with many postsynaptic neurons, and a postsynaptic neuron can also form synapses with the axon terminals of many presynaptic neurons.

Human skin sweat glands (medical 3D sectional view)

Renal corpuscle filtration structure (medical 3D schematic diagram)

Small intestine wall cross-section (microscopic 3D structural diagram)

The small intestine wall is divided from the inside out into mucosal layer, submucosal layer, muscular layer, and serosal layer. The small intestine, as an important organ in the human digestive system, has functions such as digestion, absorption, motility, and immunity.