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Anatomy
Bone & bone growth
13
Anatomy
Undergraduate 2
12/09/2009

Additional Anatomy Flashcards

 


 

Cards

Term
Bone is ____ CT
Definition
solid
Term
Bone growth encompasses 2 processes
Definition

Intramembranous ossification

 

Endochondrial ossification

Term

Endochondral ossification

 

forms the

____ bones

 

Definition
Bone of the upper & lower limbs, the pelvis, vertebrae, & ends of the clavicle
Term

Intramembranous ossification

forms the

________ bones

Definition

Flat bones of the skull

Some of the facial bones (zygomatic & maxilla bone)

Mandible

[image]Central[image] part of the clavicle[image]

Term

Endochondral Ossification

 

 

Bone eventually replaces cartilage  EX for in the

_______________, & _________________ 

Definition

1)The fetal hyaline cartilage of bone forms

 

1a) Chodrocytes enlarge(hytrophy) and then die b/c

 

2) Cartilage calcifies, and a periosteal bone collar forms around the diaphysis

 

3) Primary ossification center forms in the diaphysis

 

4) Secondary ossification centers form in the epiphyes

 

5) Bone replaces cartilage  EX for in the 

(articular cartilages, & epiphyseal plates)

 

6) Epiphyseal plates ossify and form epiphyseal lines

 

 

Term

In Endochondrial ossification

 

Osteoclasts start to reabsorb bone & create what structure

___________________________

Definition

Medullary cavity

(in middle of long bone)

Term

Intramembranous Ossification

 

Definition

1)Ossification centers form w/in

thickened regions of mesenchyme

 


2) Bone matrix (osteiod) undergoes calcification

 


3) Woven bone and its surrounding Periosteum form

 


4) Lamellar bone replaces woven bone,

as compact and spongy bone form

 

Term
Intramembranous ossification deals w/ _______ bone
Definition
Flat
Term

Endochondrial ossification deals w/ ______ Bone

 

Definition
Long
Term
Bone cells synopsis
Definition

  • All mature bone is formed in layers called lamellae.  
  • Within the lamellae are small spaces, or lacunae, in which osteocytes reside.
  • Neighboring lacunae are interconnected by thin channels, or canaliculi.
  • In compact bone, the lamellae are organized into sets of concentric rings called osteons or Haversian systems.
  • Each osteon includes a central channel, the Haversian canal, which contains a blood vessel. 
  • The lamellar systems (osteons) of bone are continually being remodelled.

 

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