Intramembranous ossification [flat bones] & endochondral ossification [long bones].The essential between them is the presence or absence of cartilaginous phase.Intramembranous ossification occurs when mesenchymal precursor cells proliferate & subsequently differentiate directly into osteoblasts w/c mineralize an immature bone tissue called woven bone,characterize by irregular bundles of randomly oriented collagen fibers & an abundance of partially calcified immature new bone called asteoid.At later stages this woven bone is progressively remodeled to mature,lamellar bone.
Endochondral ossification entails the conversion of a cartilaginous template into bone.Mesenchymal cells condense & differentiate into chondrocytes w/c secrete the cartilaginous matrix.This embryonic cartilage is avascular,& during its early development,a ring of woven bone is formed by intramembranous ossification in the future mid shaft area.This calcified woven bone is then invaded by vascular tissue,& osteoclasts & osteoblasts are recruited to replace the cartilage scaffold w/ bone matrix & excavate the hematopoietic bone marrow cavity.
intramembranous bone is formed from connective tissue and are flat bones
endochondral bones are formed from cartilage
Intramembranous ossification Endochondral ossification Appositional growth
Almost every bone in your body is made of the same materials:The outer surface of bone is called the periosteum (say: pare-ee-os-tee-um). It's a thin, dense membrane that contains nerves and blood vessels that nourish the bone.The next layer is made up of compact bone. This part is smooth and very hard. It's the part you see when you look at a skeleton.Within the compact bone are many layers of cancellous(say: kan-sell-us) bone, which looks a bit like a sponge. Cancellous bone is not quite as hard as compact bone, but it is still very strong.In many bones, the cancellous bone protects the innermost part of the bone, the bone marrow (say: mair-oh). Bone marrow is sort of like a thick jelly, and its job is to make blood
Mandible
Endochondral ossification
Endochondral ossification
Intramembranous ossification
Intramembranous and Endochondral Ossification
There are two ways bones are formed, intramembranous ossification, and endochondral ossification. Intramembranous ossification is how the flat bones are formed, while the long bones are formed with endochondral ossification.
They wouldn't grow or get bigger.
Intramembranous ossification Endochondral ossification Appositional growth
Almost every bone in your body is made of the same materials:The outer surface of bone is called the periosteum (say: pare-ee-os-tee-um). It's a thin, dense membrane that contains nerves and blood vessels that nourish the bone.The next layer is made up of compact bone. This part is smooth and very hard. It's the part you see when you look at a skeleton.Within the compact bone are many layers of cancellous(say: kan-sell-us) bone, which looks a bit like a sponge. Cancellous bone is not quite as hard as compact bone, but it is still very strong.In many bones, the cancellous bone protects the innermost part of the bone, the bone marrow (say: mair-oh). Bone marrow is sort of like a thick jelly, and its job is to make blood
Mandible
No, INTRAMEMBRANOUS OSSIFICATION, is developed from a fibrous membrane. Essentially all bones below the base of the skull (except the clavicles) are formed from endochondral ossification. Endochondral ossification uses hyaline cartilage "bones" as a pattern for forming true bones.
Endochondral ossification
Endochondral bone
Endochondral ossification
Two types of bone tissue are compact bone and spongy bone. Compact bone functions as the basic supporting tissue of the body. Spongy bone's function , meanwhile, is to make up most of the short, flat, and irregular bones in your body. It also makes up the ends of long bones.