Question: What Is The Major Difference Between Compact And Spongy Bone Quizlet?

What is Osteon?

Osteon, the chief structural unit of compact (cortical) bone, consisting of concentric bone layers called lamellae, which surround a long hollow passageway, the Haversian canal (named for Clopton Havers, a 17th-century English physician)..

What is an example of ossification?

During endochondral ossification, the area between the primary and secondary ossification centers that remains cartilage is called the epiphyseal plate and is an example of a synchondrosis. The final ossification of these plates takes place gradually and is completed at different chronological ages.

What causes ossification?

Heterotopic ossification of varying severity can be caused by surgery or trauma to the hips and legs. About every third patient who has total hip arthroplasty (joint replacement) or a severe fracture of the long bones of the lower leg will develop heterotopic ossification, but is uncommonly symptomatic.

How is spongy bone formed?

Osteoblasts penetrate the disintegrating cartilage and replace it with spongy bone. This forms a primary ossification center. Ossification continues from this center toward the ends of the bones. After spongy bone is formed in the diaphysis, osteoclasts break down the newly formed bone to open up the medullary cavity.

Where is bone tissue found?

Bone tissue is a mineralized tissue of two types, cortical bone and cancellous bone. Other types of tissue found in bones include bone marrow, endosteum, periosteum, nerves, blood vessels and cartilage….BoneTHH3.01.00.0.00001FMA5018Anatomical terminology6 more rows

What are the 2 types of ossification?

There are two types of bone ossification, intramembranous and endochondral.

What is the spongy bone also called?

Cancellous bone, also called trabecular bone or spongy bone, light, porous bone enclosing numerous large spaces that give a honeycombed or spongy appearance. The bone matrix, or framework, is organized into a three-dimensional latticework of bony processes, called trabeculae, arranged along lines of stress.

What differences between compact and spongy bone can be seen with the naked eye?

What differences between compact & spongy bone can be seen with the naked eye? Compact bone is very smooth, dense & thick. Spongy bone has a lot of open spaces.

What are the four parts of an Osteon?

Terms in this set (6)Haversian Canal. Central canal of the individual osteon. … Volksmann’s Canal. Canals that come off the Haversian canal and run horizontal. … Lacunae. Contains the osteocyte. … Osteocyte. Within the lacunae. … Lamella. Space between rows of lacunae.Canaliculi. Spider legs that connect lacunae to one another.

How is a secondary Osteon formed?

Secondary osteons differ from primary osteons in that secondary osteons are formed by replacement of existing bone. Secondary bone results from a process known as remodeling. In remodeling, bone cells known as osteoclasts first resorb or eat away a section of bone in a tunnel called a cutting cone.

What are the five many bone types?

There are five types of bones in the skeleton: flat, long, short, irregular, and sesamoid. Let’s go through each type and see examples.

Which treated bone resemble a child with rickets?

In a child with rickets, the bones are prone to deformities caused by a lack of calcium, phosphate, or vitamin D. Which treated bone in Activity 2 most closely resembles the bones of a child with rickets? Why? The bone that was baked because the heat treatment softens the bone, making it more prone to deformation.

What is the major difference between compact and 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.

What is the meaning of spongy bone?

Spongy Bone Definition Spongy bone, also known as cancellous bone or trabecular bone, is a very porous type of bone found in animals. … Spongy bone is softer and weaker than compact bone, but is also more flexible.

What is the purpose of trabecular bone?

Trabecular bone transfers mechanical loads from the articular surface to the cortical bone. The hydraulic properties absorb shock. The material properties of the bone compartments differ: trabecular bone has lower calcium content and more water content compared to cortical bone.

What does trabecular mean?

A trabecula (plural trabeculae, from Latin for “small beam”) is a small, often microscopic, tissue element in the form of a small beam, strut or rod that supports or anchors a framework of parts within a body or organ. … Cancellous bone is formed from groupings of trabeculated bone tissue.

What is the microscopic structure of 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.

Why does compact bone have Canaliculi but spongy bone does not?

Why does compact bone have canaliculi, but spongy bone does not? Nutrients and wastes cannot diffuse through compact bone.

What are the different functions 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.

Where is compact bone found in the body?

Both types are found in most bones. Compact bone forms a shell around cancellous bone and is the primary component of the long bones of the arm and leg and other bones, where its greater strength and rigidity are needed.

What is the difference between compact and trabecular bone?

The main difference between compact and trabecular bone is that compact bone is a tough and heavy bone made up of compactly packed osteons whereas trabecular bone is a soft and light bone made up of loosely packed trabeculae.

How does aging affect the trabecular bone?

Trabecular bone density decreases with aging, but its overall mass does not change as a consequence of an age-related enlargement of trabecular area.

What type of bone has the least amount of spongy bone?

Test 2QuestionAnswerSmooth, nearly flat articular surface.facet.Which category of bone has the least amount of spongy bone relative to its total volume?long bones.What are some long bones?femur, phalanges, humerus, tibia/fibula, radius/ulna, metacarpals, metatarsals.What are some short bones?tarsals and carpals.161 more rows

What are the similarities between compact and spongy bone?

Similarities between Compact bone and Spongy boneSl. No.Compact (Cortical) BoneSpongy (Cancellous) Bone10Bone marrow is yellow in colorBone marrow is red in color11Bone marrow store fatBone marrow produces red corpuscles and granular white corpuscles9 more rows

What is meant by ossification?

Ossification (or osteogenesis) in bone remodeling is the process of laying down new bone material by cells called osteoblasts. It is synonymous with bone tissue formation.

What is the function of compact bone quizlet?

Dense bone tissue composed of osteons, which resist pressure and shocks and protect the spongy tissue; it forms especially the diaphysis of the long bones. Soft substance contained in bone cavities, producing blood cells; marrow is red in children, yellow in the long bones of adults.

What is another name for the Osteon system?

Haversian systemOsteons are the structural unit of compact bone. Also known as the Haversian system, osteons consist of overlapping cylinders of bone tissue called…

What are the thin plates forming spongy bone called?

Bone IntroductionQuestionAnswerBetween osteons, you can find irregular patches of ______ ______- remains of old osteons that have broken down as the bone grew.Interstitial LamellaeSpongy bone consists of thin plates called _____, and rods and spines called ______?Trabeculae and Spicules58 more rows