The Spinous Processes of the Upper Thoracic Vertebrae are the Origin

Question

The spinous processes of the upper thoracic vertebrae are the origin of the
A) levator scapulae.
B) rhomboid major.
C) trapezius.
D) supraspinatus.
E) rhomboid major and the trapezius.

Accepted Answer

The spinous processes of the upper thoracic vertebrae serve as the origin for both the rhomboid major and the trapezius muscles. The rhomboid major originates from the spinous processes of the T2 to T5 vertebrae, and the trapezius muscle originates from the spinous processes of the vertebrae all the way from the occipital bone down to the lower thoracic vertebrae (T12).