Classification of Joints Flashcards
What is a joint?
Connection between 2 bones
What is a fibrous joint?
Bones connected by fibrous tissue
What is a cartilaginous joint?
Bones connected by cartilage
What is a synovial joint?
Articulating surfaces enclosed within fluid-filled joint capsule
What is synarthrosis?
Immovable joint
What is amphiarthrosis?
Slightly moveable joint
What is diarthrosis?
freely moveable joint
What is a suture?
Type of immovable joint
Between skull bones
At which age do skull sutures become immovable?
~20 years
What is a gomphosis?
Type of immovable joint
Where teeth articulate with sockets in
- Maxilla
- Mandible
What binds the tooth in its socket?
Periodontal ligament
What is a syndesmosis?
Type of amphithrosis
Bones held together by interosseous membrane
What is a synchondrosis?
Primary cartilaginous joint
Bones connected by hyaline cartilage
Type of synarthrosis
What is a symphysis?
Secondary cartilaginous joint
Bones connected by layer of fibrocartilage
Type of amphiarthrosis
What classification of movement occurs at synovial joints?
Diarthrosis
What us a hinge joint?
Permits movement in one plane, usually flexion and extension
What is a saddle joint?
Opposing articular surfaces with reciprocal concave-convex shape
What is a plane joint?
Articular surfaces relatively flat, allowing bones to glide over one another
What is a pivot joint?
Allows rotation only
Central bony pivot, surrounded by bony-ligamentous ring
What is a condyloid/ellipsoid joint?
Convex surfaces articulates with concave elliptical cavity
What is a ball and socket joint?
Ball-shaped surface of one bone fits into cup-like depression of another bone
Free movement in numerous axes
