Termy Terms
This is a cylindrical unit of bone that is the basic structural and functional unit of bone.
What are Osteons?
How are bone fractures and bone breaks related?
What is they are the same thing?
These are stem cells in the bone marrow that play a role in repair and growth. They are also precursors to specialized bone cells.
What are Osteogenic Cells?
Which of the following is formed by intramembranous ossification?
A) flat plates of the skull
B) bone that replaces soft spots on an infant skull
C) mandible (lower jawbone)
D) A and B are correct.
E) A, B, and C are correct.
Which of the following is formed by intramembranous ossification?
A) flat plates of the skull
B) bone that replaces soft spots on an infant skull
C) mandible (lower jawbone)
D) A and B are correct.
E) A, B, and C are correct.
The skeleton does all of the following EXCEPT
A) supports soft tissues
B) provides attachment points for tendons of skeletal muscles
C) encloses and protects the brain and spinal cord
D) stores minerals, especially calcium and phosphorus
E) initiates movement
The skeleton does all of the following EXCEPT
A) supports soft tissues
B) provides attachment points for tendons of skeletal muscles
C) encloses and protects the brain and spinal cord
D) stores minerals, especially calcium and phosphorus
E) initiates movement
This type of bone has a lattice-like network and is found on the ends of long bones. Does not contain osteons, instead contains trabeculae.
What is Spongy Bone?
This is the strongest form of bone, contains few spaces, and provides protection and support.
What is Compact Bone?
These are concentric rings that surround a vertically oriented blood vessel inside of an osteon.
What are Lamellae?
This is the third step in bone repair. Osteoblasts secrete spongy bone that joins the broken ends of bones. Takes about 3 - 4 months.
What is formation of Bony Callus?
These are bone cells that breaks down damaged/worn out bone material.
What are Osteoclasts?
What kind of cartilage makes up the articulating cartilage, epiphyseal plate and embryonic bone model?
A) Hyaline cartilage
B) Elastic cartilage
C) Fibrocartilage
What kind of cartilage makes up the articulating cartilage, epiphyseal plate and embryonic bone model?
A) Hyaline cartilage
B) Elastic cartilage
C) Fibrocartilage
What is found at the ends of long bones?
A) articular cartilage
B) epiphyses
C) metaphases
D) A and B are correct.
What is found at the ends of long bones?
A) articular cartilage
B) epiphyses
C) metaphases
D) A and B are correct.
This is the anatomical name of the shaft of a long bone.
What is the Diaphysis?
This is the term for bone formation (bone forming by primitive connective tissue)
What is Ossification?
These are small spaces between lamellae and contain osteocytes
What are Lacunae?
This is the second step in bone repair. Fibroblasts invade the damaged area and lay down collagen fibers. Chondroblasts produce fibrocartilage to span the broken ends of bone.
What is Formation of Fibrocartilaginous Callus?
These are bone cells that build bone tissue by deposition of collagen fibers & mineral salts
What are Osteoblasts?
The area in epiphyseal plate’s zone of growth where chondrocytes are mostly dead & the matrix is removed
a. zone of resting cartilage
b. zone of proliferating cartilage
c. zone of hypertrophic cartilage
d. zone of calcified cartilage
The area in epiphyseal plate’s zone of growth where chondrocytes are mostly dead & the matrix is removed
a. zone of resting cartilage
b. zone of proliferating cartilage
c. zone of hypertrophic cartilage
d. zone of calcified cartilage
Which of the following cells would be expected to be most active in replacing bone matrix lost due to an injury?
A) osteoblasts
B) osteoclasts
C) osteocytes
D) Both A and C are correct.
Which of the following cells would be expected to be most active in replacing bone matrix lost due to an injury?
A) osteoblasts
B) osteoclasts
C) osteocytes
D) Both A and C are correct.
This is the anatomical name for one end of a long bone.
What is an Epiphysis?
These are the areas between then Diaphysis and Epiphysis and include the epiphyseal plate in growing bone
What are Metaphysis?
These are small canals that connect lacunae.
What are Canaliculi?
This is the first step in bone repair. Damaged blood vessels form a clot, inflammation cleans up the damaged area, and new capillaries grow into the damaged area. Takes about 6 - 8 hours.
What is Formation of Fracture Hematoma?
These are connective tissue cells that produces fibrocartilage & extracellular matrix cartilage
What are Chondroblasts/Fibroblasts?
The area in epiphyseal plate’s zone of growth where chondrocytes go through rapid cell division
A) zone of resting cartilage
B) zone of hypertrophic cartilage
C) zone of proliferating cartilage
D) zone of calcified cartilage
The area in epiphyseal plate’s zone of growth where chondrocytes go through rapid cell division
A) zone of resting cartilage
B) zone of hypertrophic cartilage
C) zone of proliferating cartilage
D) zone of calcified cartilage
Compact bone
A) contains many spaces.
B) is found primarily in the epiphyses of long bones.
C) succumbs to stresses caused by weight and movement.
D) is arranged in units called osteons (Haversian systems).
Compact bone
A) contains many spaces.
B) is found primarily in the epiphyses of long bones.
C) succumbs to stresses caused by weight and movement.
D) is arranged in units called osteons (Haversian systems).
This covers joint surfaces and acts as a friction reducer and shock absorber.
What is Articular Cartilage?
This is the tough membrane covering bone but not the cartilage
What is the Periosteum?
These are the thin columns of bone that create the porous looking structure of spongy bone.
What are Trabeculae?
This is the fourth step of bone repair. Compact bone replaces the spongy bone in the callus, and the surface is remodeled back to normal shape.
What is Bone Remodeling?
These are bone cells that maintains collagen, minerals & bone density
What are Osteocytes?
Place the events of endochondral ossification in the order in which they occur.
primary ossification center development
cartilage model development
cartilage model growth
articular cartilage and epiphyseal plate formation
secondary ossification center development
A) 2, 3, 1, 5, 4
B) 2, 3, 5, 4, 1
C) 2, 1, 3, 5, 4
D) 2, 3, 1, 4, 5
Place the events of endochondral ossification in the order in which they occur.
primary ossification center development
cartilage model development
cartilage model growth
articular cartilage and epiphyseal plate formation
secondary ossification center development
A) 2, 3, 1, 5, 4
All of the following are associated with compact bone EXCEPT:
A) canaliculi
B) osteocytes
C) trabeculae
D) concentric lamellae
All of the following are associated with compact bone EXCEPT:
A) canaliculi
B) osteocytes
C) trabeculae
D) concentric lamellae
This is the hollow space within the shaft of a long bone that contains bone marrow and is responsible for blood cell production.
What is the Medullary Cavity?
This is the lining of bone marrow cavity
What is the Endosteum?