The Sacrum is a triangular bone at the base of the spine, between the two hip bones. It forms the back wall of the pelvis and connects the spine to the pelvis. Clinicians use the term Sacrum when discussing anatomy, imaging findings, pain sources, and procedures near the lumbosacral region. It is commonly referenced in low back pain, pelvic pain, and sacroiliac (SI) joint evaluations.
The Pulmonary Trunk is the large blood vessel that carries blood from the right side of the heart to the lungs. It starts at the right ventricle, just beyond the pulmonary valve. It quickly divides into the right and left pulmonary arteries, one going to each lung. Clinicians commonly refer to it during heart and lung imaging, hemodynamic testing, and congenital heart evaluations.
The Lumbar spine is the lower part of the spine in the lower back. It sits between the rib-bearing thoracic spine and the pelvis (sacrum). It supports body weight and allows bending, twisting, and lifting. It is a common focus in back pain evaluation, imaging, and spine care.
The Pulmonary Artery is the large blood vessel that carries blood from the right side of the heart to the lungs. It starts at the right ventricle and then divides to supply the right and left lungs. Clinicians commonly reference it when discussing oxygenation, lung circulation, and right-heart function.
The Thoracic spine is the mid-back portion of the spine between the neck and the low back. It is made of 12 vertebrae (T1–T12) that connect to the ribs and help form the rib cage. It protects the spinal cord and supports posture while allowing controlled movement. It is commonly discussed in spine clinics, imaging reports, and surgical planning for mid-back conditions.
The Cervical spine is the upper portion of the spine located in the neck. It supports the head and allows a wide range of motion, including turning and bending. It also protects the spinal cord and nerves that travel between the brain and the rest of the body. In healthcare, the Cervical spine is commonly discussed in neck pain, arm symptoms, and neurologic evaluations.
The Abdominal Aorta is the largest artery in the abdomen. It is the continuation of the body’s main artery (the aorta) after it passes through the diaphragm. It supplies oxygen-rich blood to abdominal organs, the pelvis, and the legs. In clinical care, it is commonly discussed in imaging, vascular disease evaluation, and aortic repair planning.
The Thoracic Aorta is the portion of the body’s main artery (the aorta) that runs through the chest. It carries oxygen-rich blood from the heart to the head, arms, and the rest of the body. Clinicians refer to it when evaluating chest vessel health, blood flow, and aortic diseases. It is commonly assessed with imaging tests and discussed in cardiology, vascular, and surgical care.
Posterior column is a spine term that describes the back (posterior) supporting structures of the spinal column. It is commonly used in spine trauma, deformity, and surgical planning to discuss stability and alignment. Clinicians often reference the Posterior column when reading imaging (X-ray, CT, MRI) and deciding on treatment pathways. It can also be used as part of “column” models that divide the spine into regions for injury classification.
The Descending Aorta is the portion of the aorta that carries oxygen-rich blood downward from the heart toward the abdomen and legs. It starts after the aortic arch and continues through the chest and into the abdomen. Clinicians commonly refer to it when discussing blood pressure control, aortic disease, and imaging findings. It is a major artery, so changes in its size or wall integrity can have important clinical implications.