What is the function of compact and spongy bone?

Spongy bone is used for more active functions of the bones, including blood cell production and ion exchange. However, compact bones also serve a function in storing and releasing calcium to the body when needed. The compact bone also provide strong mechanical levers, against which the muscles can create movement.

What is the function of the spongy bone?

Spongy bone provides balance to the dense and heavy compact bone by making bones lighter so that muscles can move them more easily. In addition, the spaces in some spongy bones contain red bone marrow, protected by the trabeculae, where hematopoiesis occurs.

What is the main difference between compact bone and spongy bone?

Compact bones are the hard exterior, while spongy bones are the porous interior structures of bone tissue.

How do spongy and compact bones differ in location and function?

Compact and spongy bone are two types of bones found in the bone tissue. The main difference between compact and spongy bone is that compact bone is the hard outer layers of the bone whereas spongy is the more porous, inner layers of the bone.

What is the difference between compact bone and spongy bone quizlet?

Compact bone has more bone matrix and less space due to osteons. Spongy bones have less bone matrix and more space due to trabeculae.

What is the function of spongy bone quizlet?

What is a function of spongy bone? What does spongy bone contain instead of capillaries and venules in its matrix? It fills spaces between the trabeculae, forms blood cells, supplies nutrients to osteocytes, and removes wastes.

What is in compact bone but not spongy bone?

Whereas compact bone tissue forms the outer layer of all bones, spongy bone or cancellous bone forms the inner layer of all bones. Spongy bone tissue does not contain osteons that constitute compact bone tissue. Instead, it consists of trabeculae, which are lamellae that are arranged as rods or plates.

How do compact and spongy bone differ in structure?

Compact and spongy bone differ in structure because the compact bone is tightly packed and has extracellular matrix with no spaces and the spongy bone has holes in there to take the weight away.

What is spongy bone called?

Inside bones there is a supporting structure with interconnecting bony plates and rods called trabeculae. This structure is called trabecular or spongy bone because it looks a bit like sponge. Bone marrow is found in the “holes” of the spongy bone. Many of the bones contain red bone marrow at birth.

Where is the spongy bone?

Cancellous bone is the meshwork of spongy tissue (trabeculae) of mature adult bone typically found at the core of vertebral bones in the spine and the ends of the long bones (such as the femur or thigh bone).

What is compact bone quizlet?

What is compact bone? Bone tissue that contains few spaces between osteons; forms the external portion of all bones and the bulk of the diaphysis (shaft) of long bones; is found immediately deep to the periosteum and external to spongy bone.

Is spongy bone soft as sponge?

Though spongy bone may remind you of a kitchen sponge, this bone is quite solid and hard, and is not squishy at all. The inside of your bones are filled with a soft tissue called marrow.

Is the structural unit of compact bone?

Osteons are structural units of compact bone. Each osteon consists of a central canal, which contains nerve filaments and one or two blood vessels, surrounded by lamellae.

What is the major difference between compact and spongy bone quizlet patho?

What is the major difference between compact and spongy bone? The major difference between the two types of tissue is the organization of the elements. The differences in location in the body, chemical activation, or types of minerals contained are not as relevant.

What is compact 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.

What is compact tissue?

1. the hard, rigid form of connective tissue constituting most of the skeleton of vertebrates, composed chiefly of calcium salts. 2. any distinct piece of the skeleton of the body.

Why is spongy bone called cancellous?

Cancellous bone is also known as spongy bone because it resembles a sponge or honeycomb, with many open spaces connected by flat planes of bone known as trabeculae. Inside the trabeculae are three types of bone cells: osteoblasts, osteocytes and osteoclasts.

What is produced inside the bone marrow of spongy bone?

Bone marrow is the spongy tissue inside bones that produces blood cells. Bone marrow produces red blood cells, platelets, and white blood cells. Lymphocytes are produced in the marrow, and play an important part in the body's immune system.

Which of the following is correct about spongy bone?

A is correct. Spongy bone is lighter and less dense than compact bone because of its unique trabecular matrix.

What structures make up spongy bone quizlet?

*spongy bone- Unlike compact bone, spongy bone contains no osteons Instead, its structure is an open lattice of narrow rods and plates of bone, called trabeculae .

Why do spongy and compact bone look different?

How do spongy and compact bone look different? Yellow marrow: Substance composed of fat found in the medullary cavity of long bones in adults. Spongy bone looks cancellous, whereas compact bone appears to be solid, smooth, and dense.

What is the function of osteoblasts in the body?

Osteoblasts are specialized mesenchymal cells that synthesize bone matrix and coordinate the mineralization of the skeleton. These cells work in harmony with osteoclasts, which resorb bone, in a continuous cycle that occurs throughout life.

Is compact bone avascular?

Is bone avascular and aneural? No. It has a rich blood supply and a rich nerve supply. These are holes where blood vessels (accompanied by lymph vessels and nerves) enter the bone.

What are the major structures found in compact bone and spongy bone quizlet?

Terms in this set (12)

• Compact Bone. - firmer outer layer of bone tissue. ...
• Spongy Bone. - softer inner layer of bone tissue. ...
• Osteon (Haversian System) ...
• Central (Haversian) Canal. ...
• Perforating (Volkmann's) Canal. ...
• Endosteum. ...
• Lamellae. ...
• Concentric Lamella.