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Supporting Tissue Cartilage And Bone
Structure & function.
44
Anatomy
Undergraduate 1
12/06/2010

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Cards

Term
What do bone and cartilage provide for the body?
Definition
Strong and flexible frame work for the body
Term
These connective tissues consist of _________, ___________ and ____________ ____________ of the components the last two fibres and ground substance, form the _________.
Definition
CELLS, FIBRES, GROUND SUBSTANCES, MATRIX 
Term
Which is more rigid and forms a skeleton bone or cartilage?
Definition
bone 
Term
which forms most of the skeleton in young people bone or cartilage? 
Definition
cartilage 
Term
What is cartilage composed of? 
Definition
cells called CHONDROCYTES and a MATRIX 
Term
Chondrocytes are located in the matrix in spaces called ___________ which contain one, two or four cells.
Definition
LACUNAE 
Term
What is PERICHONDRIUM?
Definition
a layer of dense irregular connective tissue containing fibroblasts 
Term

Just to know No Answer 

*Chondrocytes are found in LACUNAE (in matrix) 

*Perichondrium covers cartilage 

*Chondroblasts = fibroblasts -> chondrocytes 

Definition
Term
What function does bone serve?
Definition
Support, locomotion, protection, blood cell production and mineral (especially calcium) metabolism.
Term
Each bone is composed of two layers:the __________ layer and the__________ layer. 
Definition
Outer, Inner 
Term
The Inner layer of bone is made up of _____________ (cancellous) bone 
Definition
spongy 
Term
The deepest part of the bone is usually a cavity - the __________ or _________ cavity. which contains the ________________ or blood forming tissue.
Definition
MARROW, MEDULLARY, HEMATOPOEITIC 
Term
In gross anatomy what are bones described as? 
Definition
long or short (flat) bones
Term
what do the long bones make up most of and explain? 
Definition
They make up most of the skeleton and have a specific structure and common orgins (cartilage) 
Term
what do the short bones make up and explain.
Definition
the short (flat bones have a different origin and make up specialized bones
Term
The long bones consist of ______________
Definition
DIAPHYSIS 
Term
a long bone has as _____________ at each end 
Definition
EPIPHYSIS 
Term
the epiphyses makes up the _____________ (joint) surface of the bone and are seperated from the ___________ (in immature bone) by a growth plate of cartilage
Definition
articular, diaphysis 
Term
The growth plate is called ______________ and is responsible for the production of new bone and consequently for the __________ of the bone until growth ceases 
Definition
EPIPHYSEAL PLATE, elongation 
Term
bone(osseous tissue) like other connective tissue consists of _______________ cells and a matrix made up of __________ and ____________ substances  
Definition
specilized, fibres, ground 
Term
the outer surface of each bone is a connective tissue capsule - called the _________________ which looks much like perichondrium 
Definition
PERIOSTEUM 
Term
__________________ (cells) are located in _____________, which sit in the matrix in rows or concentric layers depending upon their location in the bone. 
Definition
OSTEOCYTES, LACUNAE 
Term
This arrangement creates ___________ (sheets) in the tissue
Definition
LAMELLAE 
Term
cells are ___________ and fill the ____________
Definition
fibrillar, Lacunae 
Term
Processes sit in very fine channels in the matrix called _____________.
Definition
CANALICULI
Term
These canals contain blood vessels....
Definition
HAVERSIAN CANALS 
Term
The units made up in this way is called an ______________ or _______________  
Definition
haversian system or osteon
Term
the very outer layer of the bone is arranged in a series of lamellae surrounding the shaft of the bone, these layers form the _______________
Definition
PERIOSTEAL LAMELLAE 
Term
what does the spongy bone lack?
Definition
Osteons
Term
The bone is arranged in a series of branching ____________ creating an open network 
Definition
TRABECULAE 
Term
what contains calcium phosphate which gives the tissue strength and rigidity?It also accounts for what percent of weight of the tissue?
Definition
GROUND SUBSTANCE, and 65% 
Term
These are responsible for the constant remodelling of bone and for the uptake and the redeposition of calcium 
Definition
OSTEOCLASTS 
Term
what are OSTEOCLASTS and explain?
Definition
large multinucleated cells containing acids which dissolve bone matrix hence release calcium and phosphate into the blood stream
Term
what does OSTEOBLASTS do?
Definition
produce new bone
Term
what is the bone development process called?  This happens in 2 ways what are they?
Definition

OSSIFICATION

1. INTERMEMBRANOUS OSSIFICATION 

2. ENDOCHONDRAL OSSIFICATION

Term
what do flat bones utilize?
Definition
INTRAMEMRANOUS OSSIFICATION 
Term
_______________ differentiates from _____________ usually within deep layers of the skin 
Definition
OSTEOBLASTS, FIBROBLASTS 
Term
_____________ form a cluster and secrete the fiber components of the matrix and the calcium phosphate becomes deposited.
Definition
Fibroblasts
Term
What does Endochondral mean?
Definition
'from within cartilage' 
Term
Cartilage is replaced from the inside by developing what? 
Definition
bone tissue
Term
This occurs in the shaft and in the ends.
Definition
DIAPHYSIS, EPIPHYSIS 
Term
When joining the Epiphysis and the Diaphysis is the ______________________ _____________.
Definition
EPIPHYSEAL PLATE 
Term
The body uses these epiphyseal plates as a _________ for growth and they remain active in this function until all of the cartilage is used up and growth is completed.  
Definition
template 
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