# Where are the humerus, vertebrae, radius and ulna located?

Feb 3, 2016

The Humerus, Radius and Ulna are in the arm.

The vertebrae are attached to the back bone.

#### Explanation:

The humerus is the long bone of the upper arm .

The radius is the long bone of the inside of the lower arm and the ulna is the long bone of the outside of the lower arm.

The vertebrae run along the spine from the neck to the lower back. It consists of:

• $7$ Cervical vertebra of the neck, of which the first 2 are the atlas and the axis.

• $12$ Thoracic vertebrae posterior to the chest and anterior to the upper back.

• $5$ Lumbar vertebrae of the lower back.

• $5$ fused sacral vertebrae.

• $4$ fused vertebrae composing the coccyx.