Anatom3DFourth thoracic vertebra
Vertebra thoracica IV · Čtvrtý hrudní obratel
Skeleton
Looks like
A mid-chest vertebra (T4), roughly level with the breastbone angle and the split of the windpipe.
What it does
Supports the trunk, carries ribs and protects the cord; a key level for chest landmarks.
Keeping it well
The T4 dermatome is the skin at nipple level, used to test the level of spinal cord injury or anaesthesia.