Quiz 10 Thoracic

Superior facets of thoracic ___ from horizontal and ____ from coronal plane

rise 60º ; 20º laterally (externally)

Superior facets of thoracic face which plane

coronal

Ratio of IVD to body

1:5

What motions are limited in thoracic

extension and flexion

lateral flexion and rotation are most free in thoracic?

true

Rotation and lateral flexion have what motion

ipsi-ipsi

Full flexion does what to curves of spione

Hyperkyphosis and hypolordotic

Full extension does what to curves of spine

Hyperlordotic and hypokyphosis

Thoracic region displays how many degrees normally

40-45º

Kyphosis is maintained by

wedge-shaped vertebrael bodies

Thoracic bodies are thicker __

Posteriorly

During flexion inferior facets move

superior and anterior

During extension inferior facets move

inferior and posterior

During lateral flexion inferior facet moves ___ on side of lateral flexion

inferior

During lateral flexion inferior facet moves ___ on opposite side of lateral flexion

superior

Which is not a flexor muscle of thoracic

5th layer muscles

Which is not an extensor muscles of thoracic

rectus abdominus

Which of the following do not effect lateral flexion?

rectus abdominus

Which of the following do effect lateral flexion AND rotation?

5th, 6th layers, transverse thoracis, external oblique

Left lateral bending and left rotation ___ IVF on left side and ____ IVF on right side

decreases; increases

During extension IVF size

decreases

During flexion IVF size

increases

During flexion there is ____ pressure on front of IVD and ____ on posterior

compression; tensile