Shaft
A long bone consists of: Periosteum, articular cartilage, medullary cavity, endosteum, cancellous bone, blood vessels, and compact bone.
Compact Bone, makes up the dense material in a long section of a bone. Cancellous bone, is found in the end regions of long bones and hs plates of bone interspersed with bone marrow.
the medullary cavity in the bone is located in the middle of a long bone and yellow marrow is located here (only seen in adults).
The middle section of a long bone is compact or 'solid'. Of course, this bone is not completely solid . . . there are 3 kinds of living bone cells located there: Osteoblasts, which grow new bone, Osteoclasts, which remove bone for use elsewhere in the body, and osteocytes, which are simply living cells within the bone. Near the ends of the long bones, though, is bone that has zillions of little 'bubbles' of bone . . . it does look a little like a sponge, but it is hard. The spongy bone is near the part that grows when you are young. Later in life the spongy bone helps cushion sharp impacts to the bone ends.
Yolanda is likely reviewing a bone section from the diaphysis, which is the shaft of a long bone. The concentric layers surrounding a central cavity or canal are characteristic of compact bone tissue, which is typically found in the diaphysis of long bones.
The type of bone you are referring to is compact bone. It contains osteocytes housed in lacunae arranged in concentric circles called lamellae around central canals (Haversian canals). Compact bone is found on the outer wall of the middle portion of long bones.
The bone in your foot that begins with the letter "M" is the metatarsal bone. It is a long bone in the middle of the foot that connects the tarsal bones to the phalanges (toes).
There are five different types of bone in a human body. If you are talking about long bones, such as your femur or tibia (aka the long bones in your arms and legs), then in the middle of them are bone marrow. Yellow marrow for adults and red marrow for children.
No, the shaft is not the longest portion of a long bone. The shaft is the main middle part of the bone, also known as the diaphysis. The long bones have a shaft (diaphysis), and two ends (epiphyses) that may be longer in length compared to the shaft.
The longest and the largest bone in the body is the femur (the thigh bone). The smallest bone in the body is in the middle ear and is called the stirrup bone (stapes). It is only 0.25 to 0.33 cm long.
No, the shin section of the leg does not have cartilage. The shin is made up of the tibia bone, which is a large, weight-bearing bone in the lower leg. Cartilage is not present in the shin bone itself.
The smallest bone in a human body is in the ear. It's called the stapes and is in the middle ear, is about 3 millimeters long and weighs about 3 milligrams.