What movements occur at the cervical spine?

The cervical spine’s range of motion is approximately 80° to 90° of flexion, 70° of extension, 20° to 45° of lateral flexion, and up to 90° of rotation to both sides.

How many movements does the cervical spine allow?

The Six Movements of the Neck.

Which two movements in the cervical spine are coupled?

The movement of cervical spine refers to a complicated compound motion. When head rotates to one side, its axial rotation is called principal motion, while the other movements of the head (e.g., lateral bending, flexion or extension and translations) are overall named coupled motion.

What movement occurs at the spine?

The 3 movements in the spine are flexion, extension, rotation and lateral flexion. These movements occur as a combination of rotation and translation in the following 3 planes of motion: sagittal, coronal and horizontal.

What movement occurs when the cervical vertebrae bend to the side?

Movement of a body part to the side is called lateral flexion. This type of movement is commonly associated with the neck and spine. For example, when you move your head toward one of your shoulders or bend your body sideways, you’re performing a lateral flexion.

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What is the normal range of motion for the cervical spine?

The cervical spine’s range of motion is approximately 80° to 90° of flexion, 70° of extension, 20° to 45° of lateral flexion, and up to 90° of rotation to both sides.

Why is the cervical spine the most mobile?

The cervical spine is much more mobile than the thoracic or lumbar regions of the spine. Unlike the other parts of the spine, the cervical spine has transverse foramina in each vertebra for the vertebral arteries that supply blood to the brain.

What is Type 2 somatic dysfunction?

Principle II: When the spine is in a flexed or extended position (non-neutral), sidebending to one side will be accompanied by rotation to the same side. This law is observed in type II somatic dysfunction, where only one vertebral segment is restricted in motion and becomes much worse on flexion or extension.

What are coupling movements?

In biomechanical terms, coupled motion is the phenomenon of a consistent association of a motion along or about one axis, whether it be a translation or a rotation, with another motion about or along a second axis; the principal motion cannot be produced without the associated motion occurring as well3.

What causes flexion of spine?

Major contributing factors that impose flexion on the lumbar spine include the following: Sitting with the lumbar spine flexed with the head and shoulders forward of the spine.

What features separate the cervical vertebrae from others?

21. The main anatomical characteristics of a typical cervical vertebra that separate it from other types of vertebrae are the small size, transverse foramina, saddle-shaped body, and bifid spinous process (Fig. 1.7. 18).

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What features are unique to cervical vertebrae?

Typical cervical vertebrae have several features distinct from those typical of thoracic or lumbar vertebrae. The most notable distinction is the presence of one foramen, in each transverse process. These transverse foramina encircle the vertebral arteries and veins.

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