Arthrology Flashcards
What are the 3 classifications of joints?
fibrous
cartilaginous
synovial
How would you define fibrous joints?
immobile
united by fibrous tissue
might ossify with age
What are the 3 types of fibrous joints?
suture
gomphosis
syndemosis
What is a suture joint?
A fibrous joint
seam found between bones of the skull
What is a gomphosis joint?
a fibrous joint
teeth
What is a syndemosis joint?
fibrous joint
bones joined by ligaments
i.e. radius and ulna and tibia and fibula
What are the 2 types of cartilaginous joints?
symphisis
synchondrosis
What is a cartilaginous joint?
immobile
united by cartilage
will ossify with age
What is a symphysis joint?
cartilaginous joint
fibrocartilage union (the bones grow together)
pelvic symphysis
mandibular symphysis
intervertebral disk
What is a synchondrosis joint?
a cartilaginous joint
hyaline cartilage union
i.e. physis
What is a synovial joint?
a mobile joint
fibrous tissue enclosing a synovial cavity
How are synovial joints classified?
based on
Number of bones
Shape
How many bones does a simple synovial joint have?
formed by 2 bones
i.e. shoulder joint
How many bones does a compount synovial joint have?
more than 2 bones
i.e. elbow joint or carpal joint
What are the 3 most important shapes for synovial joints?
Hinge
Ball and Socket
Plane Joint
What are examples of a hinge joint?
knee and elbow
What are examples of a ball and socket joint?
shoulder and hip
What are examples of a plane joint?
i.e. vertebrae
What are the features of a synovial joint?
articular cartilage
synovial membrane
fibrous layer external to the synovial membrane
some have…
meniscus
internal ligaments
fat pads
What is a synovial joint capsule?
fibrous layer and synovial membrane together
Which 2 joints have meniscus?
temporomandibular joint
stifle/knee
What’s an example of internal ligaments in the stifle joint?
cruciate ligaments
Why do you need meniscus??
to make bones in a joint a better fit for each other !
