Joints Flashcards
Two different joint articulations
Synarthroses and Synovial
What type of movement do synarthroses joints have?
No movement
2 different types of synarthroses joints
Fibrous and cartilaginous
What type of movement do synovial joints have
Freely moveable
6 different types of synovial joints
Plane, hinge, saddle, condyloid, ball and socket, and pivot
Fibrosus joints
Suture, gomphosis, and syndesmosis
The cranium consists
of bony plates held together by
cranial sutures. These are truly
immovable beyond infancy.
(corona suture)
Suture
A joint in which a
conical peg fits into a socket;
found only in the sockets of the
teeth.
Gomphosis
A joint held together by strong ligaments
permitting minimal movement
Syndesmosis
Example of syndesmosis joint
coracoclavicular joint and inferior tibiofibular joint
Synarthroses cartiaginous
Primary and secondary
Primary Sy narthroses - Cartilaginous
Temporary unions between bone growth (ex would be a growth plate )
Secondary Synarthroses - Cartilaginous
Symphysis
Symphysis
joint separated
by a cartilaginous pad, permitting very slight movement
Example of symphysis
Pubic symphysis and intervertebral disc
articular cartilage (hyaline) is responsible for
Absorbing shock and protecting the bone
Joint capsule is lines with thin vascular synovial membrane which secretes
Synovial fluid (lubricates)
Plane joint is also known as
Arthrodial
Characterized by two
flat bony surfaces
abugng each other
Plane
Plane permits
Limiting gliding movement
Examples of plane joints
Carpometacarpal,
intercarpal joints,
intertarsal joints,
tarsometatarsal joints
Hinge joint=
Ginglymus
Permits a wide range of
movement in only one plane
Hinge joint
Example of hinge joint
humeroulnar [elbow] joint,
Tibiofemoral joint, talocrural
[ankle] joint,
Saddle joint=
Sellar
Concave-convex joint
Saddle joint
Saddle joint permits movement in
Two planes
Examples of saddle joints
1 st Carpometatcarpal and
Sternoclavicular joint
Permits movement in two planes
without rotation
Condyloid
radiocarpal joint between
radius and proximal carpal row,
2nd-5th metacarpophalangeal
joints)
Examples of condyloid
Ball and socket =
Enarthrodial
Permits movement in all planes
Ball and socket
Example of ball and socket
Glenohumeral joint
Permits rotational movement
around a long axis
Pivot
Proximal radioulnar joint • Atlantoaxial joint
Pivot joint
