Article tag: Life-Size Lumbar Vertebrae with Tail Vertebrae Model| BIX-A1018| A1018|
A teaching guide for the BIX-A1018 life-size lumbar vertebrae with tail vertebrae model ($26.52) — five lumbar vertebrae with intervertebral discs, sacrum with flap, coccyx, spinal nerves, and dura mater on a pedestal. Low back pain is the world's leading cause of years lived with disability (GBD 2021), making lumbar anatomy training a priority. Con...
Model | BIX-A1018 — Life-Size Lumbar Vertebrae with Tail Vertebrae Model (Spine Anatomy Teaching) |
Summary | Life-size lumbar spine model — 5 vertebrae, intervertebral discs, sacrum with flap, coccyx, spinal nerves, and dura mater for anatomy and disc pathology teaching. (156 chars) |
Price | USD 26.52 |
Includes | 5 lumbar vertebrae + intervertebral discs; sacrum with openable flap; coccyx; spinal nerves; dura mater of spinal cord |
Mounting | Pedestal stand |
Related Model | BIX-A1017 — Normal Lumbar Vertebrae Combination, 4 sections (USD 16.20) |
Configuration note: confirm whether the sacral flap opens fully and which nerve levels are labelled — cprmodel@adaanatomy.com.
Low back pain is not a niche topic — it is the leading global cause of years lived with disability (YLDs), affecting over 600 million people worldwide according to the GBD 2021 systematic analysis (GBD 2021 Low Back Pain Collaborators, 2023). For physiotherapy, chiropractic, orthopedics, and nursing students, the lumbar spine is the anatomical region they will assess most often in clinical practice.
Yet the lumbar spine is also where anatomy teaching usually fails: the region is compact, deep, and hard to visualize from atlases or 2D screens. A physical model solves this — head-to-head evidence shows physical models outperform VR and computer modules for anatomy learning (Khot et al., 2013; Preece et al., 2013), and hands-on practice with a real 3D object builds the spatial reasoning exams reward (Garg et al., 2002).
Component | What Students See | Clinical Link |
5 lumbar vertebrae (L1–L5) | Body, pedicle, lamina, spinous/transverse processes | Vertebral level counting — the basis of physical exam |
Intervertebral discs | Discs between vertebrae, natural curvature | Disc herniation — most common surgical spine pathology |
Sacrum with flap | Openable flap reveals internal sacral canal | Sacral anatomy, sacral epidural injection site |
Coccyx | Terminal tail vertebrae | Coccyx fractures, childbirth anatomy |
Spinal nerves | Nerve roots exiting at each level | Radiculopathy, sciatica pathway |
Dura mater | Protective membrane of the cord | Lumbar puncture landmarks (L3/L4) |
1. Identify all 5 lumbar vertebrae; distinguish lumbar from thoracic morphology (large body, short spinous processes).
2. Trace the path of one spinal nerve from the cord to the intervertebral foramen.
1. Show disc position and the direction of disc herniation (posterolateral — the clinical classic).
2. Correlate with L4/L5–S1 levels and sciatica symptoms.
1. Open the sacral flap; locate the sacral canal opening.
2. Palpate landmarks: iliac crest → L4 level (Tuffier's line), the standard lumbar-puncture reference.
Case cards: disc herniation with radiculopathy / lumbar puncture procedure / sacral trauma. Students point at the exact structure on the model while explaining the clinical reasoning.
Skill | Standard |
Vertebra identification | All 5 lumbar levels named correctly in 60 s |
Disc pathology | Correct herniation direction and level |
Landmark palpation | L4 located via Tuffier's line within 30 s |
Nerve pathway | Root → foramen → peripheral distribution traced correctly |
Item | Frequency | Notes |
Dusting | Weekly | Soft dry cloth |
Sacral flap | Monthly | Check hinge/flexibility |
Pedestal | Quarterly | Tighten stand fittings |
Storage | Always | Keep upright on pedestal, away from direct heat |
Q1: What does A1018 include? A: Five lumbar vertebrae with intervertebral discs, a sacrum with an openable flap, coccyx, spinal nerves, and the dura mater of the spinal cord, mounted on a pedestal (USD 26.52).
Q2: What is the difference between A1018 and A1017? A: A1017 is a normal lumbar vertebrae combination of four sections (USD 16.20), focused on vertebral segmentation. A1018 is a fuller assembly — lumbar spine plus sacrum/coccyx with nerves and dura mater — better for disc pathology and lumbar-puncture teaching.
Q3: Why does the sacrum have a flap? A: The openable flap reveals the internal sacral canal, supporting teaching of sacral anatomy and sacral epidural injection landmarks.
Q4: Is the model life-size? A: Yes — it is a life-size (1:1) lumbar and tail vertebrae model, so palpation landmarks match real proportions.
Q5: Can it be used for lumbar puncture teaching? A: Yes — combined with the life-size proportions, Tuffier's line (iliac crest → L4) can be demonstrated, which is the standard reference for lumbar puncture.
Q6: What is the MOQ and delivery time? A: MOQ is 1 unit. Air freight: 7–10 business days; sea freight: 30–45 days. Email <cprmodel@adaanatomy.com for bulk quotes.
Global, Regional, and National Burden of Low Back Pain, 1990–2020, Its Attributable Risk Factors, and Projections to 2050 — GBD 2021 Low Back Pain Collaborators (2023), Lancet Rheumatol 5(6):e316–e329
The Relative Effectiveness of Computer-Based and Traditional Resources for Education in Anatomy — Khot et al. (2013), Anat Sci Educ 6(4):211–215
"Let's Get Physical": Advantages of a Physical Model over 3D Computer Models and Textbooks in Learning Imaging Anatomy — Preece et al. (2013), Anat Sci Educ 6(4):216–224
Is There Any Real Virtue of Virtual Reality? — Garg et al. (2002), Acad Med 77(10 Suppl):S97–S99
A Meta-Analysis of the Educational Effectiveness of Three-Dimensional Visualization Technologies in Teaching Anatomy — Yammine & Violato (2015), Anat Sci Educ 8(6):525–538
