- Information
- AI Chat
Was this document helpful?
Skeletal SYS - notes for anatomy and physio
Course: Anatomy and Physiology (BIOL-424 )
12 Documents
Students shared 12 documents in this course
University: Chaffey College
Was this document helpful?
SKELETAL SYSTEM: CARTILAGE !
!
Functions of Cartilage: !
Supports soft tissues !"
Gliding surfaces at articulations (joints) !"
A model for most bone formation !"
Types of Þber: !"
Collagen: strength !ç
Elastic: recoiling ability (rubber band) !ç
!
!
Characteristics of Cartilage: !
All are avascular & lack innervation !"
Takes longer to heal !ç
Weaker than bone !"
Consists primarily of water (ground substance)!"
Resilient tissue-springs back to original shape !"
!
3 Types of Cartilage!
Hyaline cartilage (glass): most abundant cartilage, many delicate collagen Þbrils !"
Provides support through ßexibility !ç
Weakest !ç
Epiphyseal plates, fetal skeleton, trachea, larynx, coastal (ribs + sternum) !ç
Elastic cartilage: contains many elastic Þbers & collagen Þbrils !"
Able to tolerate repeated bending !ç
Ear, external auditory canal, & epiglottis !ç
Fibrocartilage: resists strong compression & strong tension !"
An intermediate between hyaline & elastic cartilage, many thick collagen Þbers!ç
Intervertebral discs, menisci, pubic symphysis !ç
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
Growth of Cartilage !
!
Appositional growth: grow in width !"
Originate from stem cells--> committed cells in the cartilage diûerentiate into chondroblasts !"
Chondroblasts secrete new matrix as a result they become chondrocytes (diûerentiated) & occupy their own "
lacuna !
New matrix has been produced peripherally and thus appositional growth occurred !"
!
Growth of Cartilage !
Interstitial growth: grow in length!"
Chondrocytes within cartilage divide & two cells live in one lacuna !"
