Which bone is different on the basis of ossification?

Ossification (or osteogenesis) in bone remodeling is the process of laying down new bone material by cells named osteoblasts. It is synonymous with bone tissue formation….Ossification.

Which bones undergo endochondral ossification?

Endochondral ossification is the process of bone development from hyaline cartilage. All of the bones of the body, except for the flat bones of the skull, mandible, and clavicles, are formed through endochondral ossification. In long bones, chondrocytes form a template of the hyaline cartilage diaphysis.

What are the laws of ossification?

Following are Laws of ossification: 1. Primary center of ossification appears before birth and is usually single. Carpals and tarsals ( cuneiforms, navicular) ossifiy after birth.

What are the 2 types of ossification?

There are two types of ossification: intramembranous and endochondral.

What is found in bone but not cartilage?

Unlike cartilage, bone has a very good blood supply. Bone is riddled with blood capillaries. The central cavity contains blood vessels and is a storage for bone marrow. All of the osteocytes in bone are within 0.2mm of a capillary.

What are the only sesamoid bones in the human body?

Sesamoid bones are bones embedded in tendons. These small, round bones are commonly found in the tendons of the hands, knees, and feet. Sesamoid bones function to protect tendons from stress and wear. The patella, commonly referred to as the kneecap, is an example of a sesamoid bone.

What bones form through intramembranous ossification?

Intramembranous Ossification. During intramembranous ossification, compact and spongy bone develops directly from sheets of mesenchymal (undifferentiated) connective tissue. The flat bones of the face, most of the cranial bones, and the clavicles (collarbones) are formed via intramembranous ossification.

What is the order of endochondral ossification?

Endochondral ossification begins with mesenchymal tissue transforming into a cartilage intermediate, which is later replaced by bone and forms the remainder of the axial skeleton and the long bones.

What are the carpal bones?

The carpal bones are bones of the wrist that connect the distal aspects of the radial and ulnar bones of the forearm to the bases of the five metacarpal bones of the hand. There are eight carpal bones, which divide into two rows: a proximal row and a distal row.

What are types of bones?

There are five types of bones in the skeleton: flat, long, short, irregular, and sesamoid.

Is Endochondral an ossification?

Endochondral ossification is the process by which the embryonic cartilaginous model of most bones contributes to longitudinal growth and is gradually replaced by bone.

How many cranial bones are there?

There are eight cranial bones, each with a unique shape: Frontal bone.