Product Description

Educational-use note: this model is an anatomy teaching aid — educational equipment, not a medical device or pharmaceutical product, and contains no medicinal ingredients.

1. What the A1004 Is (and What It Is Not)

The A1004 is an 85 cm human skeleton with a nervous-system emphasis — a desktop-class teaching skeleton built around the spine. Published specifications highlight five structures:

It is not a full-height (180 cm) display skeleton, and it is not a disarticulated study skeleton — it is a middle-scale, nerves-focused teaching tool. That distinction matters: the right review question is not "is it a good skeleton?" but "does it fit my teaching station?"

2. Why a Nerves-Focused Spine Skeleton Earns Its Place

Anatomy knowledge is the substrate of clinical reasoning, and spine anatomy in particular carries enormous clinical weight: low back pain affected an estimated 619 million people globally in 2020 and remains the leading cause of disability worldwide (Lancet Rheumatol, 2023). Understanding how nerve roots, discs, and the vertebral column relate is not a classroom nicety — it is the foundation for interpreting spinal complaints in physiotherapy, chiropractic, osteopathy, sports medicine, and primary care.

The teaching-evidence case for physical models is equally direct. A systematic review and meta-analysis of randomized trials found that three-dimensional physical models were associated with significantly higher anatomy examination scores in medical students compared with 2-D methods (P<0.0001; Fleming et al., 2020), consistent with the broader evidence that technology- and model-enhanced instruction produces large learning gains (Cook et al., 2011).

The A1004's specific strength is making a selective, color-coded structure visible: on a real skeleton, nerve roots and arteries are invisible; on the A1004, they are painted landmarks that a lecturer can point to and students can trace — repeated, hands-on, without cadaver access.

3. The Review Breakdown

3.1 Size and Classroom Fit — ★★★★★

At 85 cm, the A1004 sits comfortably on a lecture bench or lab table, visible to a full classroom, while remaining portable between rooms. It fills the gap between toy-scale desktop skeletons (42 cm class) and full-height museum skeletons (180 cm class) that are hard to move.

3.2 Nerve and Vascular Emphasis — ★★★★★ (by spec)

The combination of nerve roots and vertebral arteries on one model is the A1004's differentiation. Programs that teach spinal assessment get both structures on the same frame, in correct anatomical relationship — which single-structure charts cannot show.

3.3 Color Coding — ★★★★★ (by spec)

Green-deepened chest cartilage and distinct nerve-root rendering support fast landmark recognition during lectures and exams — color contrast is precisely what makes model-based teaching effective for novices (Fleming et al., 2020).

3.4 Completeness for General Anatomy — ★★★☆☆

As a nerves-focused skeleton, the A1004 is not a full osteology reference. Programs needing every bone as a separate teaching surface should pair it with a full-height or disarticulated skeleton (A1002 class, 180 cm).

3.5 Documentation Depth — ★★★☆☆

The manufacturer publishes core specifications but not full material/detailing documentation. For fine details (material grade, base/mounting options, articulation of the skull and limbs), confirm with the supplier before ordering.

4. Model Positioning: A1004 in the Skeleton Line

The 85 cm tier is the teaching-station sweet spot: small enough to move, large enough to demonstrate, and — on the A1004 — specific enough to teach spine-and-nerves topics that generic skeletons cannot.

5. Verified Strengths & Honest Limitations

Strengths

● Spine, nerve roots, vertebral arteries, and discs on one frame — rare in this size class.

● Green-deepened chest cartilage speeds landmark recognition.

● 85 cm scale balances classroom visibility and portability.

● Educational-equipment positioning keeps procurement classification clean for teaching budgets.

Limitations / Points to Confirm

● Not a full osteology reference — use alongside a full-height skeleton for complete bone coverage.

● Material, mounting/base, and fine-detailing specs are not published — request the data sheet.

● No disarticulation functions stated — not intended as a practical-exam component model.

● Pricing on request; MOQ and lead time to be confirmed with the supplier.

6. FAQ

Q1: What makes the A1004 different from a standard skeleton model? A: It is a nerves-focused teaching skeleton: besides the full frame, it highlights the spine, nerve roots, vertebral arteries, intervertebral discs, and chest cartilage (green-deepened) — structures that generic skeletons cannot show.

Q2: Which programs benefit most from this model? A: Physiotherapy, chiropractic, osteopathy, sports medicine, nursing, and medical programs teaching spinal anatomy and assessment — any curriculum where nerve-root and disc relationships matter clinically.

Q3: What is the difference between A1004, A1002, and A1006? A: A1002 is the 180 cm full-height adult skeleton for display-scale teaching; A1006 is a 42 cm compact skeleton for individual reference; A1004 at 85 cm is the middle-tier nerves-and-spine-focused teaching model.

Q4: Is this model suitable for exams and practical testing? A: For landmark-recognition teaching it works well (color-coded structures). It is not stated to disarticulate, so anatomy practicals requiring bone-by-bone examination would need a disarticulated model as well.

Q5: What should I confirm before ordering? A: Material grade, mounting/base options, articulation details, and shipping arrangements. Email chinoncpr@adaanatomy.com — we will send the specification sheet and confirm pricing.

Q6: Is this a medical device? A: No — it is educational equipment for anatomy teaching, contains no medicinal ingredients, and is not a pharmaceutical or clinical device.

References

Effectiveness of Three-Dimensionally Printed Models in Anatomy Education for Medical Students and Resident Physicians: Systematic Review and Meta-Analysis — Fleming et al. (2020), J Am Coll Radiol 17(10):1220–1229

Global, Regional, and National Burden of Low Back Pain, 1990–2020 — GBD Low Back Pain Collaborators (2023), Lancet Rheumatol 5(6):e316–e329

Technology-Enhanced Simulation for Health Professions Education: A Systematic Review and Meta-analysis — Cook et al. (2011), JAMA 306(9):978–988