joints Flashcards
what are joint, articulation or arthrosis ?
point of contact between two bones,or between bone and cartilage
what ways can joints be classified in ?
Structurally* Functionally
what are the 3 functions of joints ?
Synarthrosis+
Immovable+
Amphiarthosis
+ Joint with limited movement
+Diarthrosis
+ Freely moveable joint
what is the main joint we have in the human body ?
Synovial
what are the 3 structural classification of a joint
Fibrous+Cartilaginous+Synovia
what are the 3 types of fibrous joints ?
Sutures
Syndesmoses
Gomphoses
describe the Sutures fibrous joint
immoveable (synarthrosis) e.g. flat bones of skul
describe the Syndesmoses fibrous joint
Slight movement + e.g. distal tibiofibular joint
describe the Gomphoses joint
cone shaped peg that fits in a socket
describe Cartilaginous joints
Cartilaginous joints have no cavity, little/no movement, articular surfacescovered with hyaline cartilage or fibrocartilage
what are the two types of Cartilaginous joints
-Synchondroses (chondro means cartilage)
-Sympheses (means growing together)
what are the 2 immoveable joints
fibrous and Cartilaginous
are synovial joints freely movebale ?
Synovial cavity is present, freely moveable
what type of movemrnt can SYNOVIAL JOINTS do
Gliding* Angular Movements* Rotation* Special Movement
describe GLIDING MOVEMENTS
Simple movement
+ Flat bone surfaces move back and forth, and from side-to-side to one another
+No significant alteration of angle between the bones
