Joints Flashcards
THE SCIENTIFIC STUDY OF JOINTS AND ARTICULATIONS.
Arthrology
The site of the junction or union of two or more bones of the body is called __
Joint
Site where rigid elements of the skeleton meet are called __
Articulation
Classification of joints (2)
A) Classification based on structure
B) Classification based on function
This classification of joints are Based on the material that binds the bones together, and on the presence or absence of joint cavity.
Classification based on structure
Classification based on structure (3)
A) Fibrous joints
B) Cartilaginous joints
C) Synovial joints
-Bones connected by fibrous tissue
-No joint cavity
a) Sutures
b) Syndesmoses
c) Gomphoses
Fibrous joints
- The bones are united by cartilage - There is no joint cavity
a) Synchondrosis (hyaline cartilage unites the bones)
b) Symphyses (fibrocartilage unites the bones)
Cartilaginous joints
-Most movable joints in the body
-There is a joint cavity (synovial cavity, synovial fluid)
-Articular cartilage (covers the ends of the opposing bones)
-Articular capsule (it encloses the joint cavity,2 layered)
-Reinforcing ligaments
-Bursa
Synovial joints
Classification based on function (3)
SYNARTHROSES
AMPHIARTHROSES
DIARTHROSES
Immovable joints (sutures)
SYNARTHROSES
Slightly movable joints (intervertebral discs)
AMPHIARTHROSES
Freely movable joints (synovial)
DIARTHROSES
___________ are largely restricted to the axial skeleton
Synarthroses and amphiarthroses
____ is predominate in the limbs
Diarthroses
