What is the difference between periosteum and perichondrium

Perichondrium -a layer of dense irregular connective tissue which surrounds the cartilage of developing bone; Once vascularized, the perichondrium becomes the periosteum. Secondly, what is the function of Perichondrium? Perichondrium can be found around the perimeter of elastic cartilage and hyaline cartilage. Perichondrium is a type of irregular collagenous ordinary connective tissue, and also functions in the growth and repair of cartilage.

Periosteum refers to a dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints while endosteum refers to a layer of vascular connective tissue lining the medullary cavities of bone. Thus, this is the fundamental difference between periosteum and endosteum. Exchange between blood and chondrocytes takes place through the matrix. The deeper layers of perichondrium also contains "chondrogenic" cells which become chondrocytes as they produce matrix.

White fibrocartilage blends with the surrounding fibrous tissue, and therefore does not have perichondrium. In definition, perichondrium is a dense layer of fibrous connective tissue that covers cartilage in the body while periosteum is a thin layer of connective tissue that covers the bone and promotes bone growth and development.

Does periosteum grow back? Afterward, the periosteum grows back and the original area is as good as new. What is the importance of the periosteum? Periosteum is a very thin membrane that covers many of the bones in your body. They can pass into the dense and compact layer of bone tissue below, called the bone cortex.

Blood vessels enter the bone through channels called Volkmann canals that lie perpendicular to the bone. What bone supports the tongue? What is the function of the medullary cavity? The main function of the medullary cavity is to house bone marrow. This cavity is found in the long bones of the body. In the long bones, the majority of the bone marrow is yellow marrow, the type that forms new bone tissue cells, fat cells, and the cells of cartilage.

What is haversian system? Haversian system : A haversian canal, its lamellae and osteocytes form a haversian system. Haversian canals are found in bone matrix of long bone, like humerus of mammals. Haversian canals contain arteries and veins, osteoblasts in areolar tissue, nerves and lymph. It is also called osteon. What is the function of periosteum and Endosteum? What covers the end of long bones? So, we can consider this as the key difference between perichondrium and periosteum.

In fact, perichondrium is a fibrous connective tissue while periosteum is a membranous connective tissue. Furthermore, another significant difference between perichondrium and periosteum is that the perichondrium consists of fibroblast cells while periosteum consists of osteoblast cells. Moreover, a further difference between perichondrium and periosteum is the location.

Generally, perichondrium is present in the nose, hyaline cartilage in larynx and trachea, elastic cartilage in ear, etc.

Periosteum is present in the surfaces of bone tissue. Besides these, the primary function of perichondrium is to cover cartilage to protect the bones from injury. Whereas, the primary function of periosteum is to facilitate the supply of blood and nutrients to the bone tissue. As a secondary function, perichondrium provides elasticity to different parts of the body while reducing friction while periosteum provides protection to the bone tissue and stimulates the recovery during a bone fracture.

Therefore, these are the functional difference between perichondrium and periosteum. Perichondrium is a fibrous connective tissue which covers cartilages while periosteum is a membranous connective tissue that covers surfaces of bone tissues.

So, this is the key difference between perichondrium and periosteum. Perichondrium covers cartilage to protect the bones from injury. It consists of fibroblast cells. It is located in different regions of the body such as nose, hyaline cartilage in larynx and trachea, etc.

Longitudinal growth at both metaphyses was twice the circumferential growth. Toward both articulations, the collagen network of the epiphyseal surface was randomly oriented, and growth was approximately biaxial. These findings support the hypothesis that the anisotropic architecture of the collagen network, detected in periosteum and perichondrium, concurs with the assessed growth directions.