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Human Embryo Set, PVC
High-Impact PVC Composition: Manufactured from specialized polyvinyl chloride, ensuring superior chemical resistance and structural durability for high-frequency tactile examination in laboratory settings.
Anatomical Scale Accuracy: Features a multi-model progression that highlights the emergence of the primitive streak, somites, and the folding of the trilaminar embryonic disc with granular precision.
$12.75
Quick Answer: The human embryo set, PVC, is a set of models of the developing human embryo made in PVC plastic, a tough material suited to frequent handling. It is used in biology, nursing and medical classes to show how the embryo folds, forms its organs and grows into a recognisably human shape.
How the Embryo Takes Shape
Early development is not only growth but folding. In the fourth week the flat embryonic disc curls both head to tail and side to side, turning into a cylinder that encloses the gut tube, brings the heart into the future chest and draws the connecting stalk towards what will become the umbilical cord. A human embryo set shows this change of shape from one model to the next, which a series of flat diagrams struggles to convey.
Later models in sets like this usually show the head growing large relative to the body, the face forming from swellings around the mouth, fingers and toes separating as the tissue between them breaks down, and the body straightening. By the end of the eighth week the embryo has a human form, although it is only about three centimetres from crown to rump, and the fetal period that follows is mainly growth and maturation.
PVC is named in the title as the material. PVC models are generally flexible or semi-rigid, stand up to handling better than brittle plaster and can be wiped clean. The number of models and the stages in this set are not stated; the human embryo development set is listed separately and may cover different stages.
Applications
- Teaching embryonic folding and organ formation in medical and nursing embryology
- Hands-on group work where models are passed around, which PVC tolerates well
- Explaining how limb, face and heart defects arise when a stage goes wrong
- Advanced secondary biology on human reproduction and development
Care & Handling
- Wipe the PVC models with a cloth dampened in mild soap solution and dry them; avoid solvents, which can soften or cloud PVC.
- Keep the human embryo set away from radiators and hot windowsills, since PVC can deform with heat.
- Store the models in order in a box with dividers so the sequence is ready for the next class.
Specifications
| Item | Set of human embryo models |
| Material | PVC plastic |
| Teaching focus | Body folding, organ formation, early growth |
| Users | Medical, nursing, midwifery and biology students |
| Number of models and stages | Confirm at enquiry |
Why Choose LabEquip
Colleges that pass models around large classes often choose PVC for its durability. LabEquip lists this set in its biology lab products; for the stages included, write through the contact page.
Frequently Asked Questions
What makes PVC suitable for a set that is handled a lot?
PVC is tough, takes fine moulded detail and is less likely to chip or shatter than plaster. It can be wiped clean with mild soap and water, which suits models that students handle often.
What is embryonic folding?
During the fourth week the flat embryonic disc folds from head to tail and from side to side. The folding encloses part of the yolk sac as the gut tube, moves the heart and mouth towards their final positions and closes the body wall around the abdomen.
Why do the fingers look webbed at first?
The hands begin as flat paddles. Between about the sixth and eighth weeks, cells between the future fingers die in a controlled process called apoptosis, separating the digits. If this fails, the fingers stay joined, a condition called syndactyly.
When does an embryo start to look human?
By the end of the eighth week the face, limbs, fingers and toes have formed and the embryo has a recognisably human shape, although it is only about three centimetres long from crown to rump.
How do the face and lip form?
The face develops from several swellings around the primitive mouth that grow and fuse during the second month, and the palate closes a few weeks later. If fusion is incomplete, a cleft lip or cleft palate results, which is why these stages matter when explaining the conditions.
How is this set different from the embryo development set?
This set is listed with PVC named as its material, while the development set is listed without one. Sets from different ranges often cover different stages, so it is worth comparing their stage lists before choosing, or using both together for a longer sequence.
Last Updated: September 2026
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