Question

a) identify the bone this image is showing. what does arrow a point to b) what passes through the foramen arrow b points to. human vertebrae with arrow a pointing to an opening on side of vertebrae and arrow b pointing to a large opening in the middle of the vertebrae. a) thoracic vertebra; vertebral foramen b) vertebral artery a) atlas vertebra; foramen transversarium b) spinal cord a) axis vertebra; intervertebral foramen b) blood vessels and nerves a) lumbar vertebra; transverse process b) brain

Explanation:

The bone shown is the atlas vertebra (C1), which is the first cervical - vertebra. Arrow A points to the foramen transversarium through which the vertebral artery passes. Arrow B points to the vertebral foramen through which the spinal cord passes.

Answer:

A. Atlas vertebra; foramen transversarium
B. Spinal cord