What cartilage makes up intervertebral discs?
The intervertebral disk end plate comprises a thin layer of hyaline cartilage that is bonded to an underlying layer of perforated cortical bone. On the disk side, the hyaline cartilage blends in with the nucleus and annulus.
Does hyaline cartilage forms intervertebral discs?
Hyaline cartilage is the most widespread type and resembles glass. In the embryo, bone begins as hyaline cartilage and later ossifies. Fibrous cartilage has many collagen fibers and is found in the intervertebral discs and pubic symphysis.
What makes up hyaline cartilage?
Hyaline cartilage matrix is primarily made of type II collagen and chondroitin sulphate, both of which are also found in elastic cartilage. Hyaline cartilage exists on the sternal ends of the ribs, in the larynx, trachea, and bronchi, and on the articulating surfaces of bones.
What type of cartilage forms the intervertebral discs quizlet?
The type of cartilage found in the intervertebral discs is fibrocartilage.
Is intervertebral discs made of fibrocartilage?
Fibrocartilage is the tough, very strong tissue found predominantly in the intervertebral disks and at the insertions of ligaments and tendons; it is similar to other fibrous tissues but contains cartilage ground substance and chondrocytes.
What are the intervertebral discs made of quizlet?
Intervertebral disks are made up of a series of tough outer rings called Annulus Fibrosus and a soft gelatinous inner Nucleus Puplosus.
What are intervertebral discs made of quizlet?
Where are intervertebral discs?
vertebral column
An intervertebral disc (or intervertebral fibrocartilage) lies between adjacent vertebrae in the vertebral column. Each disc forms a fibrocartilaginous joint (a symphysis), to allow slight movement of the vertebrae, to act as a ligament to hold the vertebrae together, and to function as a shock absorber for the spine.
How do you identify hyaline cartilage?
Hyaline cartilage This type of cartilage has a glassy appearance when fresh, hence its name, as hyalos is greek for glassy. It looks slightly basophilic overall in H&E sections. Hyaline cartilage has widely dispersed fine collagen fibres (type II), which strengthen it. The collagen fibres are hard to see in sections.
What type of cartilage makes up the articular cartilage?
hyaline cartilage
Articular cartilage is hyaline cartilage and is 2 to 4 mm thick. Unlike most tissues, articular cartilage does not have blood vessels, nerves, or lymphatics. It is composed of a dense extracellular matrix (ECM) with a sparse distribution of highly specialized cells called chondrocytes.
What is the intervertebral disc made of?
Intervertebral Disc. The bulk of the disc is made up of a central nucleus pulposus (NP) and the surrounding anulus fibrosus (AF) (Fig. 23-1 ). The disc is flanked rostrally and caudally by cartilaginous end plates that serve as a transitional zone between the disc and the adjacent vertebral bodies.
What is the cervical vertebrae with intervertebral disc?
Cervical vertebra with intervertebral disc. Intervertebral discs consist of an outer fibrous ring, the anulus fibrosus disci intervertebralis, which surrounds an inner gel-like center, the nucleus pulposus.
What is intervertebral fibrocartilage?
An intervertebral disc (or intervertebral fibrocartilage) lies between adjacent vertebrae in the vertebral column.
What is the blood supply to the intervertebral discs?
The intervertebral discs, like other cartilages, have no blood supply. They form the largest structures in the body without their own blood vessels. During embryonic development, and at birth, they possess some vascular supply which terminate in their endplates and anulus fibrosus.