What causes a pulmonary embolism? Blood clots can form for a variety of reasons. Pulmonary embolisms are most often caused by deep vein thrombosis, a condition in which blood clots form in veins deep in the body. The blood clots that most often cause pulmonary embolisms begin in the legs or pelvis.
All ribs are attached posteriorly to the thoracic vertebrae. The neck of the rib is the flattened part that extends laterally from the head. The neck is about 3 cm long, and is placed in front of the transverse process of the lower of the two vertebrae with which the head articulates.
The T11 vertebra articulates into the rib bones, but they are not designated as true ribs, since they do not connect to the chest's sternum.Also, unlike other thoracic vertebrae, T11 features a spinous process that is relatively short, and it tends to be horizontal, featuring only a slight curvature.The eleventh thoracic spinal nerve extends from beneath the vertebra.enerally, the spinal bones are larger and heavier the further down they are located. This helps each vertebra to support the weight of the vertebrae above it, as well as the weight of the skull and brain. Like all of its spinal counterparts, T11 protects the spinal cord by encasing it in bone.