What is the typical structure of a long bone?
What is the typical structure 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 features of a long bone?
A long bone has a shaft and two ends. Some bones in the fingers are classified as long bones, even though they are short in length. This is due to the shape of the bones, not their size. Long bones contain yellow bone marrow and red bone marrow, which produce blood cells.
What are the major features of a typical bone?
A typical bone can be broken down into multiple parts, each with a particular function:
- Epiphysis. This part is at the extreme ends of the bone (epi = above), where joints (articulations) form.
- Articular cartilage.
- Diaphysis.
- Metaphysis.
- Periosteum.
- Medullary (or marrow) cavity.
- Endosteum.
What is the structure and function 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 5 major parts of a long bone?
list the five major parts of a long bone. epiphysis- part that forms a joint Metaphysis-connects epiphysis to diaphysis Diaphysis- shaft of the bone Articular cartilage- cartilage on the bone at the epiphysis to cushion the joint Medulary cavity- space containing yellow bone marrow.
What are the two types of bone and what are their features?
Compact (cortical) bone: A hard outer layer that is dense, strong, and durable. It makes up around 80 percent of adult bone mass. 2. Cancellous (trabecular or spongy) bone: This consists of a network of trabeculae or rod-like structures.
What are the four functions of bones?
The major functions of the bones are body support, facilitation of movement, protection of internal organs, storage of minerals and fat, and hematopoiesis. Together, the muscular system and skeletal system are known as the musculoskeletal system.
What is the function of bone markings?
Bone markings are projections and depressions found on bones, which help us to identify the location of other body structures, such as muscles. Their importance comes when we try to describe the shape of the bone or to understand how the muscles, ligaments and other structures affect this bone and vice versa.
What is the structure of a typical long bone?
What is the structure of a typical long bone? The major parts of a long bone are: epiphysis, epiphyseal plate, metaphysis, diaphysis, medullary cavity, articular cartilage, and periosteum.
Which is part of the bone contains blood vessels?
central canal longitudinal channel in the center of each osteon; contains blood vessels, nerves, and lymphatic vessels; also known as the Haversian canal compact bone dense osseous tissue that can withstand compressive forces diaphysis tubular shaft that runs between the proximal and distal ends of a long bone diploë
Which is the central part of the bone shaft?
Medullary cavity – The medullary cavity is the central part of long bone shafts ( diaphysis ). While this channel may appear as hollow in many illustrations, this is actually where red and/or yellow bone marrow exists.
Which is the hollow part of the bone?
Metaphysis—From the Greek meta,meaning “between,” this is the area of the bone between the epiphysis and diaphysis. Diaphysis—From the Greek, meaning “to grow between,” the diaphysis is the long, cylindrical, hollow shaft of the bone.