Compact bone has no visible open spaces. Spongy bone, in contrast, has visible open spaces.
Cancellous bone, or spongy bone, has many open spaces and contains marrow. It is softer and weaker than compact bone.
Trabecular bone, also known as spongy or cancellous bone, is composed of small needlelike pieces of bone arranged in a lattice-like structure with many open spaces. These spaces contain bone marrow and blood vessels, helping to provide flexibility and strength to bones.
The layer of bone tissue you are referring to is spongy bone. It is made up of trabeculae, which are spiky structures that create open spaces filled with bone marrow. Spongy bone is important for providing structural support and flexibility to bones.
Bone marrow, more specifically yellow bone marrow.
Compact bone tissue does not have visible open spaces. It is dense and made up of cylindrical units called osteons, which are arranged in layers. This type of bone tissue provides strength and support for the skeleton.
Spongy BoneA spongy bone is so spongy because, the spongy bone has many open spaces and contains bone marrow. But, spongy bone is know to be lightweight and very strong.It also contains trabeculae which allow for the "gaps" in the bone and allow it "give." It is also the only place where red marrow is found in adults.
Spongy bone has a lattice-like structure with open spaces filled with bone marrow. This design makes spongy bone lightweight and flexible, allowing it to absorb shock and distribute forces in multiple directions. This structure also provides space for blood vessels and facilitates the exchange of nutrients and waste products.
spongy bone has samall open spaces that make bones lightweight
Spongy Bone has more surface area, but it is weaker and not as dense as compact bone. Compact Bone is the tough outer layer of bone while spongy bone is the porous bone where the red and yellow marrow is. Spongy is softer bone, with holes in it. It is found inside the bone. It is lighter than compact bone. Compact bone is generally on the outer edges of bone. it is composed of multiple osteon units that are bunched closely together like stacked logs and, thus, is good at bearing weight in the long direction. Spongy bone is generally on the inside of compact bone. Individual osteon-like struts (called trabeculae) branch in many directions and interconnect. Thus, there are spaces created where red marrow exists. This kind of bone is good at handling stress from multiple directions and is lighter weight. Spongy bone can appear yellow because it has some fat in it, and it is possible to see small holes in spongy bone. Compact bone is usually white. Also, spongy bone is not long (like the wrist) most irregular and flat bones are formed from spongy bone tissue. Compact bone is usually long (like a femur). Compact bone tissue is hard with few open spaces & provides protection and support.Spongy bone tissue is porous with many open spaces
Compact bone has a greater blood supply compared to spongy bone. Compact bone contains Haversian systems or osteons, which are densely packed with blood vessels, whereas spongy bone has a more porous structure with fewer blood vessels. This difference in blood supply helps compact bone to support higher mechanical loads and resist fractures more effectively than spongy bone.
Bones are composed of collagen fibers and minerals like calcium and phosphorus, giving them strength and flexibility. They are made up of compact bone on the outside and spongy bone on the inside, with a central cavity containing bone marrow for blood cell production. Bones are connected by ligaments at joints and are constantly being remodeled by cells called osteoblasts and osteoclasts.