Cartilage and Bone Connective Tissue B) Cartilage Connective Tissue
fibrocartilage acts as a:
"Shock absorber"
Cartilage contains:
-a population of cells -gell like ground substance cells scattered throughout gel-like ground substance
Cartilage producing cell:
Chrondroblast
Characteristic of fibrocartilage:
Flexible but can withstand pressure LOOK AT KAYLA POWERPOINT
mature chondrocytes maintain _________ of the cartilage and ensure ____ ____ _____ _____ ____ _____
the matrix that it remains healthy and viable
Hyaline cartilage supplies:
-support -flexibility -resilience
Fibrocartilage location:
-where shock absorbing property is required: 1) between vertebrae 2) meniscus in knee 3)between pelvic bones (symphysis pubis) 4) some joints (knee and jaw)
3 types of cartilage:
1) Hyaline cartilage 2) fibrocartilage 3) elastic cartilage
cells in cartilage:
1) chondrocyte 2) chondroblast
Function 1 of cartilage
1) supporting soft tissue
3 main functions of cartilage:
1) supporting soft tissue 2) provide gliding surface @ articulations (joints) 3) provide a model for the formation of most of the bones in the body. serves as a "rough draft" that is later replaced by bone tissue -MODEL FOR LATER BONE DEVELOPMENT
where does cartilage support soft tissue?
1) walls of the trachea 2)external portion of the ear
where is hyaline cartilage found?
1-trachea (air pipe of lungs) 2-portions of larynx (voice box) 3-the articular (joint) cartilage on bones 4-growth plates in growing bones 5-fetal skeleton
function 2 of cartilage
2) provide gliding surface @ articulations (joints)
function 3 of cartilage
3) provide a model for the formation of most of the bones in the body. serves as a "rough draft" that is later replaced by bone tissue
which is stronger: bone or cartilage?
Bone
Walls of the trachea have:
C-shaped hyaline cartilage rings that keep the walls of the trachea and smaller airways open
Chrondroblasts mature into:
Chondrocytes
mature cartilage avascular or vascular?
avascular
which is more flexible/resilient: bone or cartilage?
cartilage
mature cartilage cell, containing cartilage around it:
chondrocyte
Hyaline cartilage characteristics (LOOK AT SI SLIDES)
firm -dense -hard -ridged
characteristics of Elastic cartilage:
flexible bends and returns to normal form
external portion of ear have:
flexible elastic cartilage that supports the external portion of the ear
Elastic cartilage contains _______ in its extracellular matrix
highly branched elastic fibers
most abundant cartilage type
hyaline cartilage
elastic cartilage is found:
in regions requiring highly flexible support EX) 1 external ear 2 ear canal 3 epiglottis (guards entrance to larynx-voice box)
Avascular
not penetrated by blood vessels
thick collagen fibers in fibrocartilage help:
resist both stretching and compaction forces
Cartilage:
semi-rigid connective tissue -weaker than bone -more flexible/resilient than bone
Fibrocartilage has an extracellular matrix w/ numerous:
thick collagen fibers
Where is Cartilage Connective Tissue found?
throughout the human adult body
extracellular matrix appearance of hyaline cartilage:
translucent (hyaline) appearance
articulations (joints)
where two bones meet
