No, the heart is anterior to the spine. Posterior means "behind" therefore the spine is posterior to the heart.
If you refer to lungs in humans, then the lungs are anterior to the spine
The spinal cord is posterior to the sternum.
spinal cord
No,the brain lies superior(ie,on top) of the spinal cord.
The spinal cord is posterior to the chest.
the posterior median sulcus
posterior part
Posterior root
works with the lungs
Spinal cord is posterior to the esophagus. Jeez I can't believe you don't know that.
posterior intercostals
The spinal cord is protected by the vertebras that make up the spine. Heart and lungs are mainly protected by the ribs and the sternum.