What are the small bones of the spinal column called?

Vertebrae: The spine has 33 stacked vertebrae (small bones) that form the spinal canal. The spinal canal is a tunnel that houses the spinal cord and nerves, protecting them from injury. Most vertebrae move to allow for a range of motion. The lowest vertebrae (sacrum and coccyx) are fused together and don't move.

1. What are the small bones of a spinal column?
2. What is the name of the small triangular bone at the base of the spinal column called?
3. What is the spinal column called?
4. What is Flavum?
5. Where is the Pars Interarticularis?
6. What is a coccyx?
7. What is spiral cord?
8. What is sacral bone?
9. What are the 26 bones of the spine called?
10. How many bones are there in vertebral column?
11. What is cauda equina?
12. What is the Atlas bone?
13. What type of bone is the sternum?
14. What is intervertebral foramen?

What are the small bones of a spinal column?

Vertebrae are the 33 individual bones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx (Fig. 2). Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.

What is the name of the small triangular bone at the base of the spinal column called?

Sacrum – Sacral spine anatomy

The sacrum is a large triangular-shaped bone found at the base of the spinal column. It consists of the last four or five vertebrae that by adulthood, fuse together to form a single bone.

What is the spinal column called?

The spinal cord lies inside the spinal column, which is made up of 33 bones called vertebrae. Five vertebrae are fused together to form the sacrum (part of the pelvis), and four small vertebrae are fused together to form the coccyx (tailbone).

What is Flavum?

One of a series of bands of elastic tissue that runs between the lamina from the axis to the sacrum, the ligamentum flavum connects the laminae and fuses with the facet joint capsules. ... As we age, the ligament loses elastin, and this allows the ligament to encroach on the canal.

Where is the Pars Interarticularis?

The pars interarticularis (pars) lies between the superior and inferior articular process bilaterally at each vertebral level. Anatomically, one can describe the pars as the region between two, one superior and one inferior, zygapophyseal joints.

What is a coccyx?

What is the tailbone/coccyx? Your coccyx is made up of three to five fused vertebrae (bones). It lies beneath the sacrum, a bone structure at the base of your spine. Several tendons, muscles and ligaments connect to it.

What is spiral cord?

A column of nerve tissue that runs from the base of the skull down the center of the back. It is covered by three thin layers of protective tissue called membranes. The spinal cord and membranes are surrounded by the vertebrae (back bones).

What is sacral bone?

Overview. The sacrum is a shield-shaped bony structure that is located at the base of the lumbar vertebrae and that is connected to the pelvis. The sacrum forms the posterior pelvic wall and strengthens and stabilizes the pelvis.

What are the 26 bones of the spine called?

It consists of 26 bones called vertebrae. The bottom two vertebrae consist of fused bones, five in the upper one and four in the lower one. Each vertebra has a strong, stubby section that supports your weight, and a hole for the spinal cord to pass through. Humans and giraffes both have seven neck bones.

How many bones are there in vertebral column?

The average person is born with 33 individual bones (the vertebrae) that interact and connect with each other through flexible joints called facets. By the time a person becomes an adult most have only 24 vertebrae because some vertebrae at the bottom end of the spine fuse together during normal growth and development.

What is cauda equina?

The cauda equina is the sack of nerve roots (nerves that leave the spinal cord between spaces in the bones of the spine to connect to other parts of the body) at the lower end of the spinal cord. These nerve roots provide the ability to move and feel sensation in the legs and the bladder.

What is the Atlas bone?

The Atlas: The Top Bone in Your Cervical Spine

The occipital bone rests upon the atlas, the first bone in your neck. The atlas is named after the Greek God Atlas, who held up the world on his shoulders. A pair of synovial joints, known as the atlanto-occipital joint connect the atlas and your skull.

What type of bone is the sternum?

1. Flat Bones Protect Internal Organs. There are flat bones in the skull (occipital, parietal, frontal, nasal, lacrimal, and vomer), the thoracic cage (sternum and ribs), and the pelvis (ilium, ischium, and pubis). The function of flat bones is to protect internal organs such as the brain, heart, and pelvic organs.

What is intervertebral foramen?

Abstract. The intervertebral foramen serves as the doorway between the spinal canal and periphery. It lies between the pedicles of neighboring vertebrae at all levels in the spine.