The two types of bone tissue, also known as osseous tissue, are spongy and compact. Compact bone is dense, smooth and defines the exterior shapes of bones. Spongy bone has an asymmetrical, honeycomb-like structure that lines the longer bones and fills the bulky areas of bones.
Spongy bone, also known as cancellous bone, contains trabeculae, which are the open areas that contain red bone marrow. Compact bone is also known as cortical bone. Its primary structures are osteons, cylindrical layers of bone matrix that enclose and protect nerves and blood vessels.
The term "bone tissue" refers to the mineralized structure that makes up the immobile part of the bone. However, bones contain additional structures, such as blood vessels and nerves, which makes them organs.Learn More
The largest and longest bone in the human body is the femur, and it is located in the upper leg. The femur connects to the knee at one end and fits into the hip socket at the other.Full Answer >
Bones are important because they provide a frame for the body, protect organs, anchor muscles and store calcium. Humans have 206 lightweight and strong bones that support the body’s total weight.Full Answer >
Knuckles can become dislocated as the result of physical injuries involving the fingers. Causes include fingers being forcibly jammed, twisted or bent backwards, states NYU Langone Medical Center. Participation in contact sports leads to a higher risk of finger dislocation. Other risk factors include weakened ligaments and previous dislocations.Full Answer >
Men and women have 12 pairs of ribs. Contrary to popular belief, men do not have fewer ribs. The rib cage is formed from these 24 ribs. The ribs in the center are slightly larger, while the sternum or the chest bone forms the central part of the rib cage.Full Answer >