Human stomach (medical 3D sectional view)
Adult cardiopulmonary resuscitation - artificial respiration (medical emergency 3D demonstration animation)
Adult cardiopulmonary resuscitation - chest compressions (medical emergency 3D demonstration animation)
Transverse section of human kidney
Structure of flagella (microscopic 3D schematic)
Eyeworm (Microscopic 3D Schematic)
Microscopic mesophyll tissue (3D schematic diagram)
Exocrine gland (sectional schematic diagram)
Exocrine gland is a gland that secretes externally, usually composed of two parts: the gland surrounded by glandular epithelium and the excretory duct that excretes secretions, hence also known as ductal gland. It can be divided into single-cell glands and multicellular glands, and can also be called sweat glands, mucous glands, serous glands, etc. according to the type of secretion.
3D heart model
The central organ of vertebrates. The main function of the heart is to provide power for blood flow and to move blood to all parts of the body. The human heart is located in the middle of the chest to the lower left. It is about the size of a fist and weighs about 250 grams. The human heart is shaped like a peach, located above the diaphragm, between the lungs and to the left. In September 2022, Australian researchers found a 0.38 billion-year-old heart in the fossilized jaw fish.
![[HD 3D Model] Earth](https://file.freecreat.com/user/13/13/2023/0928/164337WipnXdyW.png?x-oss-process=image/resize,m_pad,w_350/quality,q_80)
[HD 3D Model] Earth
Earth (English name: Earth; Latin: Terra) is the third planet from the sun and the only celestial body known to harbor and support life. About 29.2 percent of the Earth's surface is land, consisting of continents and islands. The remaining 70.8 per cent is covered by water, mostly by oceans, bays and other brackish bodies of water, but also by lakes, glaciers, rivers and other freshwater bodies, most notably glaciers, which together form the hydrosphere.
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