Is the Spheno-occipital synchondrosis a suture?
When fused, the synchondrosis is often called the spheno-occipital suture – this is a misnomer – as anatomically it is not a suture.
Which segment of the cranial base is controlled by the Spheno Ethmoidal synchondrosis?
The posterior cranial base can grow sagittally under the aegis of the spheno-occipital synchondrosis. In contrast, the anterior cranial basis is restricted by the sphenoethmoidal and ethmoidofrontal sutures.
What is Spheno-occipital joint?
The spheno-occipital synchondrosis (SOS) is a cartilaginous growth center between the occipital and sphenoid bones. It is composed of hyaline cartilage, which is abundant during the growth phase of the cranial base and then ossifies during skeletal maturation .
Which of the following pair of bones are articulated by synchondrosis?
The articulating midline bones are the vomer, ethmoid, frontal, and occipital. The sphenoid also articulates with the paired parietals, temporals, zygomatics, and palatines (and sometimes, the maxillae) lateral to the midline.
What are Synchondrosis made of?
Structure. Synchondroses are cartilaginous unions between bone composed entirely of hyaline cartilage. Most exist between ossification centers of developing bones, and gradually ossify.
What is a Synchondrosis?
Synchondroses are cartilaginous unions between bone composed entirely of hyaline cartilage. Most exist between ossification centers of developing bones, and gradually ossify.
What are synchondrosis made of?
Which of these skull bones surround and protect the brain?
The neurocranium forms the cranial cavity that surrounds and protects the brain and brainstem. The neurocranium consists of the occipital bone, two temporal bones, two parietal bones, the sphenoid, ethmoid, and frontal bones—all are joined together with sutures.
What is Lambdoidal suture?
The lambdoid suture is a line of dense, fibrous tissue that connects the occipital bone with the parietal bones. It is continuous with the occipitomastoid suture, which connects the occipital bone with the temporal bones.