sutures

Squamous Suture

Squamous Suture The structure indicated is the squamous suture of the skull. Sutures are junctions between the bones of the skull – they are a type of fibrous joint, bound together by Sharpey’s fibres. The squamous suture forms the joint of the skull between the squamous part of the temporal bone and the inferior aspect of the parietal bone. Posteriorly, the squamous suture becomes the parietomastoid suture where the mastoid process articulates with the parietal bone. Anteriorly, the squamous suture extends towards pterion. Learn more about the sutures of the skull in this tutorial.
Sqaumous Suture

Lambdoid Suture

Lambdoid Suture The structure indicated is the lambdoid suture. Sutures are junctions between the bones of the skull – they are a type of fibrous joint, bound together by Sharpey’s fibres. Fibrous joints are fixed, immobile joints, with no joint cavity, and connected by fibrous connective tissue. There are three types of fibrous joint. 1)      Suture (joints between skull bones) 2)      Syndesmosis (joints between long bones of forearm and leg) 3)      Gomphosis (joints between roots of a tooth and socket in jaw) The lambdoid suture joins the parietal bones with the occipital bone, and is continuous with the occiptomastoid suture. …

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lambdoid suture