Human Thoracic Spinal Column Model

Quick Answer: The Human Thoracic Spinal Column Model is a thoracic spine model showing the twelve vertebrae of the chest region, T1 to T12. It is used to teach how thoracic vertebrae differ from others, where the ribs attach and why this part of the spine moves as it does.

How the Thoracic Spine Is Built

Thoracic vertebrae are recognised by features linked to the ribs. Their bodies are roughly heart-shaped and carry small costal facets on the sides for the heads of the ribs, while the transverse processes of most carry facets for the rib tubercles. The spinous processes are long and slope steeply downward, overlapping the vertebra below like roof tiles in the mid-thoracic region. The vertebral foramen is small and round, matching the narrower spinal cord at this level.

Movement follows from shape. The facet joints between thoracic vertebrae face roughly forward and backward, which favours rotation and side-bending, while the ribs and sternum limit bending forward and back. Together the vertebrae form the thoracic kyphosis, the gentle backward curve of the upper back. An exaggerated curve is common in older adults, and osteoporotic compression fractures often appear as wedge-shaped vertebral bodies in the mid and lower thoracic spine. Scoliosis also most often involves this region.

T1 and T12 are transitional: T1 shares features with the cervical vertebrae above it, and T12 begins to resemble a lumbar vertebra. With the cervical spinal column model and lumbar spinal column model, students can compare all three regions. The listing does not say whether ribs, discs or spinal nerves are included.

Specifications

Where the Thoracic Model Helps

• Anatomy practicals identifying typical and atypical thoracic vertebrae
• Physiotherapy teaching on thoracic mobility, posture and breathing mechanics
• Explaining kyphosis, scoliosis and osteoporotic wedge fractures to students and patients
• Comparing regional vertebrae alongside cervical and lumbar models

Handling the Model

• Pick up the thoracic spine model at both ends so the column does not flex sharply in the middle.
• Keep the spinous and transverse processes clear of hard edges; they are the parts most easily snapped.
• Wipe it with a dry or slightly damp cloth and avoid solvents.
• Store it lying flat or on its stand, not propped at an angle.

Why Choose LabEquip

Physiotherapy colleges and anatomy departments buy regional spine models so students can study one section in detail before the whole column. LabEquip lists this model in Biology Lab Products; tell us whether you need ribs or discs through the contact page.

Frequently Asked Questions

How can a thoracic vertebra be told apart from a cervical or lumbar one?

Thoracic vertebrae have costal facets for the ribs on their bodies and most transverse processes, heart-shaped bodies and long spinous processes sloping downward. Cervical vertebrae have holes in their transverse processes, and lumbar vertebrae have large kidney-shaped bodies with no rib facets.

Why does the thoracic spine rotate more easily than it bends forward?

Its facet joints face roughly forward and backward, which allows rotation, while the attached ribs and sternum brace the region against bending forward and backward.

What is thoracic kyphosis?

It is the normal backward curve of the upper spine. When the curve becomes excessive, often with age or osteoporosis, the upper back looks rounded and the head is carried forward.

Where do the ribs join the thoracic vertebrae?

The head of a typical rib meets the sides of two neighbouring vertebral bodies and the disc between them, and its tubercle meets the transverse process of the vertebra of the same number. The first and lowest ribs are exceptions to this pattern.

Why do osteoporotic fractures often affect the thoracic spine?

Weakened vertebral bodies in the mid and lower thoracic spine carry load in front of the spine’s axis, so they can collapse at the front into a wedge shape, increasing the kyphosis.

Does the model include ribs, discs or nerves?

Regional spine models vary: some show vertebrae only, others add discs, spinal nerves or rib stumps. The listing does not specify, so confirm the contents when you enquire.

Last Updated: September 2026