Quick Answer: The human torso, unisex, 23 parts (PVC plastic), is a head-and-trunk anatomy model moulded in PVC whose organs come apart into 23 pieces. The 23 part unisex torso lets biology, nursing and medical students study the thoracic and abdominal organs in more detail than a basic classroom torso allows.
Why 23 Parts
The higher the part count on an anatomy torso, the more its organs are subdivided. With 23 pieces, a torso of this class commonly splits structures that a simpler model leaves whole: the heart may open to show its chambers, the lungs may come apart side by side, the stomach and a kidney may be sectioned, and the head may divide to expose the brain. The precise list for this model is not in its title, but those extra pieces are what move a torso from naming organs to studying their internal structure.
PVC plastic is named in the title. PVC is widely used for anatomy models because it can be moulded in fine detail, takes paint well and resists knocks better than brittle plastics. Painted surfaces still wear with rough handling, so labels and colours stay clearest when parts are held by their edges.
The word unisex can describe either a torso without genitalia or one with interchangeable male and female parts, and this listing does not say which. A course that needs reproductive anatomy should find out, or compare the torso with interchangeable sex organs.
Care & Handling
- Lay the pieces out on a cloth in the order they were removed so the 23 part unisex torso goes back together without forcing.
- PVC wipes clean with mild soap and water; alcohol, thinners and strong disinfectants can soften the surface or strip the paint.
- Keep the torso away from radiators and hot windows, as PVC can distort with prolonged heat.
- Check the pegs and sockets each term; a worn fitting lets organs fall out when the model is moved.
Specifications
| Model of | Human head and trunk with removable, subdivided organs |
| Parts | 23, as listed |
| Material | PVC plastic, as listed |
| Sex | Unisex, as listed; configuration not specified |
| Parts list and height | Confirm at enquiry |
Who Uses a 23 Part Torso
- Senior secondary and pre-university biology, where the internal structure of the heart and kidney is examined
- Nursing and pharmacy anatomy practicals with organ identification tests
- Medical and paramedical foundation courses revising thoracic and abdominal anatomy
- Demonstrating how the organs of several systems pack together in the trunk
Why Choose LabEquip
Colleges and senior schools that already own a basic torso often add a higher part count model for practical examinations. LabEquip lists this PVC torso within its biology lab products. Send your quantities and any questions about the parts list through the LabEquip contact page.
Frequently Asked Questions
What does the 23 parts count include?
It counts the torso body and every removable piece, such as head sections, lungs, heart halves, stomach, liver, intestine and kidney parts. The breakdown differs between makers; on detailed torsos the extra pieces usually come from opening the heart, sectioning a kidney and dividing the head.
Why is PVC used for anatomy models?
PVC can be moulded with fine surface detail, holds paint well and is tougher than brittle plastics, so it survives regular handling by students. It is also easy to wipe clean with mild soap and water.
Can PVC parts be disinfected?
Wipe them with a mild detergent solution and dry them. Avoid alcohol-based and solvent cleaners, which can dull or dissolve the paint, and avoid heat, which can warp PVC.
Is a 23 part torso suitable for school use?
Yes, especially at senior secondary level. Younger classes may find the extra pieces slow to reassemble, so some schools keep a simpler torso for them and use the 23 part model for practical work and examinations.
What does unisex mean on this torso?
Makers use unisex either for a torso with no genitalia or for one with interchangeable male and female parts. The listing does not say which applies, so settle this before ordering if reproductive anatomy is on your syllabus.
How do I stop pieces going missing?
Remove the parts onto a tray, keep a printed parts list with the model and count the pieces before it is covered and stored. Preventing loss is far easier than replacing small parts later.
Last Updated: September 2026
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