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Male reproductive system in 3D

Beta

Explore the testis, epididymis, deferent duct, seminal vesicle, prostate and penis, with the urethra, the bladder for context and the vessels of the penis and testis.

Beta

Interactive 3D atlas

Loads about 9 MB of 3D data the first time. Works best on a laptop or a recent phone.

Study the male reproductive system in 3D

Explore the testis, epididymis, deferent duct, seminal vesicle, prostate and penis, with the urethra, the bladder for context and the vessels of the penis and testis.

Turn and zoom

Drag to rotate, scroll or pinch to zoom, and tap any part to see its name and explanation.

Labels and standard views

Switch labels on or off and jump to front, back, side, top and bottom views, with an orientation cube.

Section cuts

Cut through the structure in transverse, coronal or sagittal planes and slide the cut through it.

Explode and see-through

Pull the parts apart, or make the outer layers faint to see what is inside.

Guided tour

Follow the "Path of sperm" tour one step at a time, or press Play and let the camera fly to each part.

Parts in this model

26 named parts, each with the FMA identifier the dataset gives it. Tap a group in the app to show or hide it.

  • Testes2
  • Epididymides2
  • Ductus deferens2
  • Seminal vesicles2
  • Prostate1
  • Penis3
  • Urethra1
  • Dorsal arteries of the penis4
  • Dorsal veins of the penis4
  • Testicular arteries2
  • Testicular veins2
  • Urinary bladder (context)1

Guided tour: Path of sperm (7 steps)

Each step highlights the parts it talks about. The sentence is quoted word for word from OpenStax Anatomy and Physiology 2e.

  1. 1. Testes

    Within the lobules, sperm develop in structures called seminiferous tubules.
    OpenStax, 27.1 Testes

  2. 2. Epididymis

    Sperm enter the head of the epididymis and are moved along predominantly by the contraction of smooth muscles lining the epididymal tubes.
    OpenStax, 27.1 Role of the Epididymis

  3. 3. Ductus deferens

    During ejaculation, sperm exit the tail of the epididymis and are pushed by smooth muscle contraction to the ductus deferens (also called the vas deferens).
    OpenStax, 27.1 Duct System

  4. 4. Into the pelvis

    From each epididymis, each ductus deferens extends superiorly into the abdominal cavity through the inguinal canal in the abdominal wall.
    OpenStax, 27.1 Duct System

  5. 5. Seminal vesicles

    The fluid, now containing both sperm and seminal vesicle secretions, next moves into the associated ejaculatory duct, a short structure formed from the ampulla of the ductus deferens and the duct of the seminal vesicle.
    OpenStax, 27.1 Seminal Vesicles

  6. 6. Prostate

    The paired ejaculatory ducts transport the seminal fluid into the next structure, the prostate gland.
    OpenStax, 27.1 Seminal Vesicles

  7. 7. Urethra and penis

    The corpus spongiosum, which can be felt as a raised ridge on the erect penis, is a smaller chamber that surrounds the spongy, or penile, urethra.
    OpenStax, 27.1 The Penis

What this model does not show

There is no scrotum, spermatic cord, ejaculatory duct, bulbourethral gland or prepuce in the dataset, and the urethra is one mesh, so its four regions are not separate. Passages on disorders are left for a later version.

Where the data or the textbook has a gap, the atlas says so instead of filling it in.

Keep exploring

Questions

What can I see in the male reproductive system model?

The model has 26 named parts in 12 groups: Testes, Epididymides, Ductus deferens, Seminal vesicles, Prostate, Penis, Urethra, Dorsal arteries of the penis and 4 more groups.

What is the "Path of sperm" tour?

It is a guided tour of 7 steps. Each step highlights the parts it describes and shows a sentence quoted from OpenStax Anatomy and Physiology 2e. Press Play to let the camera fly to each step for you.

What is missing from the male reproductive system model?

There is no scrotum, spermatic cord, ejaculatory duct, bulbourethral gland or prepuce in the dataset, and the urethra is one mesh, so its four regions are not separate. Passages on disorders are left for a later version.

Where does the information come from?

The 3D shapes come from the BodyParts3D dataset (and, for the female pelvic region, the Human Reference Atlas). Every explanation is a sentence quoted word for word from the open textbook OpenStax Anatomy and Physiology 2e, with a link to its section.

Can I use it to diagnose or treat anything?

No. The atlas is for learning only. It is a beta version and has not yet been reviewed by an anatomy educator.

Credits and disclaimer

For learning only, not for diagnosis or treatment. This is a beta version and it has not yet been reviewed by an anatomy educator.

BodyParts3D, © The Database Center for Life Science licensed under CC Attribution 4.0 International. Text quoted from OpenStax, Anatomy and Physiology 2e, © Rice University, CC BY-NC-SA 4.0. Female pelvic region from the Human Reference Atlas (HuBMAP), CC BY 4.0.

This tool is free, non-commercial and made for education. It has no ads and no paid features.

All sources and licences