Question: What Is The Basic Structure Of The Bone?

What are 5 major parts of a long bone?

List five major parts of a long bone.

The major parts of a long bone include epiphysis, articular cartilage, diaphysis, periosteum, medullary cavity, endosteum, and marrow.

How do compact and spongy bone differ in structure?.

What are the three main 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.

What are the five 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.

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).

How many epiphysis types are in the human body?

There are four types of epiphysis: Pressure epiphysis: The region of the long bone that forms the joint is a pressure epiphysis (e.g. the head of the femur, part of the hip joint complex).

What are bone cells called?

Bone is composed of four different cell types; osteoblasts, osteocytes, osteoclasts and bone lining cells. Osteoblasts, bone lining cells and osteoclasts are present on bone surfaces and are derived from local mesenchymal cells called progenitor cells.

What is the most important bone in your body?

Your skull protects the most important part of all, the brain. You can feel your skull by pushing on your head, especially in the back a few inches above your neck.

Which is the longest bone in our body?

femurThe 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.

Why is it important to classify bones?

Why is it important to classify bones? ” Bones have different appearances and functions. Classifying them makes them easier to identify and treat conditions. ” 2. Aside from length, what are some other common characteristics of a long bone? … Compare flat bones and long bones.

What is the basic 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 is the structure and function of bone?

Bone is a mineralized connective tissue that exhibits four types of cells: osteoblasts, bone lining cells, osteocytes, and osteoclasts [1, 2]. Bone exerts important functions in the body, such as locomotion, support and protection of soft tissues, calcium and phosphate storage, and harboring of bone marrow [3, 4].

What are the 4 types of bone?

The four principal types of bones are long, short, flat and irregular. 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.

What are the major parts of bones?

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.

Which structure is called an Osteon?

Osteon. The basic unit of structure in adult compact bone, consisting of a central (haversian) canal with it’s concertrically arranged lamellae, lacunae, osteocytes, and canaliculi. Also called haversian system. Lamellae. Concentric rings of hard, calcified extracellular matrix found in compact bone.

What is the function of a bone cell?

Bone cells work in harmony to maintain a balance between bone formation and resorption, ultimately to control bone structure and function. Osteoblasts are cells, which contribute to deposition of organic components of bone extracellular matrix.

What are the 6 classifications of bones?

The bones of the human skeleton are classified by their shape: long bones, short bones, flat bones, sutural bones, sesamoid bones, and irregular bones (Figure 1).

What is the structure of the bone?

Compact bone consists of closely packed osteons or haversian systems. The osteon consists of a central canal called the osteonic (haversian) canal, which is surrounded by concentric rings (lamellae) of matrix. Between the rings of matrix, the bone cells (osteocytes) are located in spaces called lacunae.