Intervertebral discs
secondary cartilaginous joint
Types of cartiliginous joints: Synchondrosis Symphysis Synchondrosis joint has bands of hyaline cartilage which unite bones and an epiphyseal plate (temporary). For example between manubrium and first rib (synarthrotic). Symphysis joint has a pad of fibrocartilage between bones. For example the pubis symphysis and the joint between bodies of vertebrae. (amphiarthrotic).
The joint present in the neck region is the atlanto-occipital joint. It is formed between the atlas (first cervical vertebra) and the occipital bone of the skull. This joint allows for nodding movements of the head.
Monsoons.
Having 5 nonrib-bearing lumbar type vertebral bodies means that there are five vertebrae in the lumbar region that do not have ribs attached to them. The lumbar region is typically made up of five vertebrae labeled L1 to L5. The absence of ribs indicates that these vertebrae are located in the lower back and are not directly connected to the ribcage. This anatomical feature allows for flexibility and mobility in the lumbar spine.
The fibrocartilage pads between adjacent bodies of the vertebrae are called intervertebral discs. These discs act as cushions, shock absorbers, and allow for flexibility and movement in the spine.
The facet joints are the joints between adjacent vertebrae.
The lateral intervertebral joints are classified as plane (gliding) joints. They allow for small movements in multiple directions between adjacent vertebrae, contributing to the flexibility of the vertebral column.
Intervertebral disc separates adjacent vertebral bodies.
The 12 thoracic vertebrae compose the middle segment of the vertebral column, between the cervical vertebrae and the lumbar vertebrae. They are intermediate in size between those of the cervical and lumbar regions; they increase in size as one proceeds down the spine, the upper vertebrae being much smaller than those in the lower part of the region. They are distinguished by the presence of facets on the sides of the bodies for articulation with the heads of the ribs, and facets on the transverse processes of all, except the eleventh and twelfth, for articulation with the tubercles of the ribs.
The joints between the vertebrae of the backbone are called intervertebral joints. These joints are formed by the articulation of the vertebral bodies and the intervertebral discs, which help provide stability, flexibility, and cushioning to the spine.
ball and socket
Thoracic vertebrae are between the cervical vertebrae and the lumbar vertebrae. The ones farther down the spine are larger. They have facets on the sides of the bodies for articulation with the heads of the ribs.
secondary cartilaginous joint
Types of cartiliginous joints: Synchondrosis Symphysis Synchondrosis joint has bands of hyaline cartilage which unite bones and an epiphyseal plate (temporary). For example between manubrium and first rib (synarthrotic). Symphysis joint has a pad of fibrocartilage between bones. For example the pubis symphysis and the joint between bodies of vertebrae. (amphiarthrotic).
Bone, not hyaline cartilage, forms the bodies of human vertebrae. The vertebrae are considered irregular bones.
The joints between vertebrae are called facet joints, which allow for movement of the spine. These joints are lined with cartilage and surrounded by a joint capsule filled with synovial fluid, enabling smooth articulation between the vertebrae. The facet joints permit various types of movement, such as flexion, extension, and rotation of the spine.