Arteries Sacral Lateral

Sacral Lateral Arteries: Anatomy and Role in the Body

Sacral Lateral Arteries are an important group of large blood vessels that provide blood supply to the sacrum and sacral region of the spine. These arteries have several names such as a. sacrales laterales, pna, bna, jna, but their role in the body remains unchanged.

Anatomy of the Sacral Lateral arteries

Arteries Sacral Lateral originate from the internal iliac artery and are directed to the lower part of the sacrum and the sacral canal. Each of these arteries passes through openings in the bony sclerotome of the vertebra and is then located on the anterior surface of the sacrum.

During its course, each Sacral Lateral Artery branches into several branches that provide blood supply to the corresponding areas of the body. The branches of the sacral lateral arteries include:

1. Medial branches, which are directed to the sacral canal and sacrum;
2. Lateral branches, which provide blood supply to the muscles and bones of the pelvis;
3. Intermediary branches that are directed to the muscles and bones of the pelvis.

The medial branches of the sacral lateral arteries also form anastomoses with other large arteries, such as the xiphoid, pubic and greater piriform arteries. This provides additional blood flow to the pelvic and sacral areas.

The role of the Sacral Lateral arteries in the body

The Sacral Lateral arteries have an important role in providing blood supply to the bones and muscles of the pelvis and sacrum. These arteries also play an important role in maintaining blood supply to the pelvic organs such as the bladder, rectum and genitals.

In addition, the Sacral Lateral arteries may be important during surgical interventions in the pelvis and sacrum. For example, during prostate surgery or hysterectomy, surgeons may pay attention to these arteries to avoid damaging them.

In conclusion, the Sacral Lateral arteries are an important group of blood vessels that provide blood supply to the sacrum, the sacral region of the spine, the muscles and bones of the pelvis, and the pelvic organs. Understanding the anatomy and role of these arteries can be useful for surgeons, as well as for specialists in the field of medicine related to the pelvis and sacrum. Keeping these arteries healthy and functioning properly is key to the overall well-being of the body.


The lateral sacral arteries are located at the border of the lumbar and sacral parts of the body. They branch from the inferior gluteal artery, which originates in the posterior branches of the femoral artery. The beginning of the lateral sacral arteries (dorsal part of the segment) is located posterior and inferior to the lateral sacral foramina, and the base is in the intervertebral space of the last sacral vertebra. Further, ending on the lateral side of the sacrum in the area between the spinous processes of the fifth and fourth sacral vertebrae, they anastomose with other arteries of the same name, as well as with the arteries of the spinal segments S3-S4.

The length of the arteries ranges from 3 to 7 cm, their number is from two to six. In the sacrum they form 4-6 anastomoses. According to the number of anastomoses, the lateral, medial and posterior branches of each artery are distinguished. The lateral branch arises from the base of the artery and ends in the thickness of the greater sciatic muscle on the side of the midline.

The medial branch of the direct artery is located inside the sacrum, in its middle part, and transversely crosses the iliopsoas muscle, anastomosing in the sacrotuberous fossa with the subcutaneous branch of the lateral sacral artery, which belongs to the pelvic arteries. The medial branches of the branches of the paired lateral arteries are directed to the seminiferous tubules of the rectus femoris muscle. Branches of the roots of the spinal column


The second sacral vascular bundle includes branches of the lateral artery (two to four each) and the middle sacral artery (all three of its branches). The composition of the first sacral vessel