What does sacral mean in medical terms?

Asked By: Fiama Luddtke | Last Updated: 31st January, 2020
Category: medical health bone and joint conditions
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Medical Definition of Sacral
Sacral: Referring to the sacrum. For example, sacral agenesis is absence of all or part of the sacrum.

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Moreover, what does sacral area mean?

The sacral region (sacrum) is at the bottom of the spine and lies between the fifth segment of the lumbar spine (L5) and the coccyx (tailbone). The sacrum is a triangular-shaped bone and consists of five segments (S1-S5) that are fused together.

Subsequently, question is, what s1 means? S1 stands for Semester 1. S1 is the average grade of Quarters 1 and 2.

Just so, what is another name for Sacrum?

The Latin word is found in the alternative Latin name of the sacrum, ossa clunium, as it were "bones of the buttocks". Due to the fact that the os sacrum is broad and thick at its upper end, the sacrum is alternatively called os latum, "broad bone".

What does lumbar mean in medical terms?

Medical Definition of lumbar 1 : of, relating to, or constituting the loins or the vertebrae between the thoracic vertebrae and sacrum the lumbar region.

37 Related Question Answers Found

What body part is the sacrum?

The sacrum is a large wedge shaped vertebra at the inferior end of the spine. It forms the solid base of the spinal column where it intersects with the hip bones to form the pelvis. The sacrum is a very strong bone that supports the weight of the upper body as it is spread across the pelvis and into the legs.

Why does my sacral area hurt?

Sacroiliac (SI) joint pain is felt in the low back and buttocks. The pain is caused by damage or injury to the joint between the spine and hip. Sacroiliac pain can mimic other conditions, such as a herniated disc or hip problem. Surgery to fuse the joint and stop painful motion may be recommended.

At what age does the sacrum fuse?

Location/Articulation
Its upper part connects with the last lumbar vertebra; the bottom part, with the coccyx (tailbone). In children, it consists of usually five unfused vertebrae which begin to fuse between ages 16 and 18 and are usually completely fused into a single bone by age 26.

Where does the sacrum start?

The sacrum is located in between the right and left iliac (or hip) bones, and forms the back of the pelvis. The sacrum is where your sacral spine connects to your pelvis. The point or spinal level where L5 meets S1 is called the lumbosacral spine.

Can the sacrum move?


The sacrum, a triangular bone, fits like the keystone of a bridge in between the two pelvic bones called the ilia. Unlike many joints of the body, they have very little motion, but their ability to move is vital to pelvic stability and positioning.

How do you relieve sacral nerve pain?

Over-the-counter pain relievers (such as acetaminophen) and anti-inflammatory medications (NSAIDs, such as ibuprofen or naproxen) may be recommended for mild to moderate pain relief. Prescription medications such as muscle relaxants or narcotic painkillers may be used during episodes of severe, acute pain.

Where is the sacral ala located?

The ala of sacrum is the upper part of the lateral part of sacrum, lateral to the first sacral vertebra. It is a large triangular surface, which supports the Psoas major and the lumbosacral trunk, and in the articulated pelvis is continuous with the iliac fossa.

What is the function of the sacrum?

As we discussed previously, the sacrum connects to the hip bones and is important in forming a strong pelvis. The sacrum provides support at the base of your spine. The sacrum is a very strong bone that helps to support the weight of the upper body.

How did the sacrum get its name?

The word "sacrum", meaning "sacred" in Latin, lives on in English anatomy as the name for the large heavy bone at the base of the spine. The Romans called the bone the "os sacrum," which literally meant the "holy bone" and the Greeks termed it the "hieron osteon," the same thing, the "holy bone".

What are the holes in the sacrum for?


The eight holes in the sacrum are called the sacral foramina. Individual, a hole is called a sacral foramen. They provide an opening for the sacral nerves and blood vessels to pass through the bone. The holes are the openings between the outer portions of the vertebrae that fuse to create the sacrum.

What muscles are attached to the sacrum?

Muscles that attach to the sacrum or innominates:
  • Adductor brevis.
  • Adductor longus.
  • Adductor magnus.
  • Biceps femoris - long head.
  • Coccygeus.
  • Erector spinae.
  • External oblique.
  • Gluteus maxiumus.

Why is the sacral promontory important?

Sacrum: The sacrum is the wedge-shaped bone consisting of five fused vertebrae, the first of which has a prominent upper border known as the sacral promontory. This is an important pelvic landmark. During labour the coccyx moves backwards to enlarge the pelvic outlet allowing more space for the passage of the fetus.

Does the sacrum have discs?

The vertebral column is formed by articulation of individual vertebrae. The intervertebral discs are usually absent in the sacrum and coccyx due to the fusion of these vertebrae.

What structure passes through the sacral canal?


transverse processes of the lower sacral vertebrae, on each side, are a series of four openings (sacral foramina); the sacral nerves and blood vessels pass through these openings. A sacral canal running down through the centre of the sacrum represents the end of the vertebral canal; the functional spinal cord…

Is the sacrum a deep or superficial bone?

The dorsal surface of the sacrum is convex and has an irregular surface that includes median, intermediate, and lateral sacral crests representing the fused spinous, articular, and transverse processes, respectively. The dorsal sacroiliac ligaments are divided into deep (short) and superficial (long) parts.

What is s1 in medical terms?

S. 1. First heart sound, which corresponds to the closure of the mitral and tricuspid valves, which is a long, low, “lubb” that occurs during systole.