Characteristics of a long bone
What are the characteristics of a long bone and list down the example of long bones?
Bones that are longer than they are wide are called long bones. They consist of a long shaft with two bulky ends or extremities. They are primarily compact bone but may have a large amount of spongy bone at the ends or extremities. Long bones include bones of the thigh, leg, arm, and forearm.
What are the seven features of a long bone?
Terms in this set (7)
- Diaphysis. Shaft.
- Metaphysis. Growth area allowing bones to lengthen.
- Epiphysis. Bone ends.
- Periosteum. Double layered membrane surrounding bone shaft; Outer layer=dense irregular connective tissue. …
- Endosteum. …
- Articulate cartilage. …
- Medullary Cavity.
What are the functions of a long bone?
Long bones function to support the weight of the body and facilitate movement. Long bones are mostly located in the appendicular skeleton and include bones in the lower limbs (the tibia, fibula, femur, metatarsals, and phalanges) and bones in the upper limbs (the humerus, radius, ulna, metacarpals, and phalanges).
What are the characteristics of a short bone?
Short bones are shaped roughly as a cube and contain mostly spongy bone. The outside surface is comprised of a thin layer of compact bone. Short bones are located in the hands and feet. The patella (kneecap) is also considered a short bone.
What are the 6 parts of a long bone?
Define and identify the following parts of a long bone: diaphysis, epiphysis, metaphysis, articular cartilage, periosteum, medullary cavity, endosteum. Compare the composition and function of compact bone versus spongy bone.
What are the components of a long bone?
A long bone has two parts: the diaphysis and the epiphysis. The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The hollow region in the diaphysis is called the medullary cavity, which is filled with yellow marrow.
What are the classification of long bones?
Long bones are found in the arms (humerus, ulna, radius) and legs (femur, tibia, fibula), as well as in the fingers (metacarpals, phalanges) and toes (metatarsals, phalanges).
What is the function of long and short bones?
Short bones are designated as those bones that are as wide as they are long. Their primary function is to provide support and stability with little to no movement. They are one of five types of bones: short, long, flat, irregular and sesamoid.
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| Short bone | |
|---|---|
| Latin | os breve |
| TA98 | A02.0.00.012 |
| TA2 | 370 |
| FMA | 7475 |
Where can you find a long bone?
All of the bones in the arms and legs, except the patella, and bones of the wrist, and ankle, are long bones.
What are the three parts of a long bone?
Long bones are longer than they are wide. They can be divided into three regions – epiphysis, metaphysis and the diaphysis.
How many long bones are there?
There are 206 total bones in the human skeleton, of which 90 are classified as long bones.
What are the five major functions of bones?
Your bones serve five main functions in your body, including:
- Supporting your body and helping you move. Your bones literally hold up your body and keep it from collapsing to the ground. …
- Protecting your internal organs. …
- Producing your blood cells. …
- Storing and releasing fat. …
- Storing and releasing minerals.
What are long bones called?
The long bone category includes the femora, tibiae, and fibulae of the legs; the humeri, radii, and ulnae of the arms; metacarpals and metatarsals of the hands and feet, the phalanges of the fingers and toes, and the clavicles or collar bones.
How are long bones formed?
Bones grow in length at the epiphyseal plate by a process that is similar to endochondral ossification. The cartilage in the region of the epiphyseal plate next to the epiphysis continues to grow by mitosis. The chondrocytes, in the region next to the diaphysis, age and degenerate.
What is the longest bone in the body?
The femur
The femur is one of the most researched bones in the human anatomy and forensic medicine. As the longest bone in the human body, it is well preserved in skeletal remains.
What structure allows long bones to grow in length?
The epiphyseal plate
The epiphyseal plate is the area of growth in a long bone. It is a layer of hyaline cartilage where ossification occurs in immature bones. On the epiphyseal side of the epiphyseal plate, cartilage is formed. On the diaphyseal side, cartilage is ossified, allowing the diaphysis to grow in length.
What is the end of the long bone called?
epiphysis
The wider section at each end of the bone is called the epiphysis (plural = epiphyses), which is filled with spongy bone.