Unit 5- Arthrology Flashcards
joint
formed when two or more skeletal structures are united to each other or to teeth by connective tissue
simple joint
joint with only two skeletal components
composite/ complex joint
a joint with 3 or more skeletal structures
fibrous joint
have fibrous connective tissue uniting the skeletal components
syndesmoses
fibrous joint with a significant amount of uniting connective tissue
sutures
fibrous joint between flat bones of the skull
serrated suture
sagittal suture
squamous suture
between parietal bone and squamous portion of the temporal bone on each side
planar suture
no overlapping and no interlocking bones
schindylesis
thin plate of one bone articulates in a cleft of another one as in articulation of the ethmoid bone and vomer
cartilaginousjoint
skeletal components of cartilaginous joints united by cartilage
hyaline cartilage joint
epiphyseal cartilages (physes) in growing bones
fibrocartilage joint
secondary joints, pubic symphysis, intervertebral symphyses and manubriosternal symphysis
synovial joint
7 subtypes based on the shape of articulating surfaces and type of movement they allow
ball & socket joint
“ball” shoulder joint and hip joint
ellipsoid or condylar joint
radiocarpal joint -no rotation-
bicondylar joint
knee joint
hinge joint
elbow and interphalangeal joints *movement only in 1 plane
trochoid (pivot) joint
rotation in 1 plane
saddle joint
between incus and malleus, first carpometacarpal joint
planar joint
sliding joint, intercarpal and intertarsal joints
synostosis or bony union
bone tissue replaces the fibrous connective tissue and or cartilage originally present
articular (joint) capsule
see picture
articular cavity
the space formed by articular capsule
synovial membrane
lines the inside of the joint capsule *fills cavity
articular cartilage
end of bone
ligaments
connective tissue proper structures extending from one skeletal component to another to reinforce in most synovial joints
capsular ligaments
regional thickening in the fibrous portion of the joint capsule
intercapsular ligamens
ligaments inside the joint capsule
extracapsular ligamens
nearly all synovial joins have well-developed ligaments outside and clearly separated from joint capsule
articular discs
found in radiocarpal joint, acromioclavicular joints, sternoclavicular joints and temporomandibular joints
articular menisci
c shaped, knee joint had two (medial and lateral)
joints of the superior limb
5 bones forming the pectoral girdle
sternoclavicular joint
planar joint between the sternal extremity of the clavicle
acromioclavicular joint
between the acromion of the scapula and acromial extremity of the clavicle
shoulder joint
between glenoid cavity of the scapula and the head of the humerus
elbow joint
formed by the humeral condyle and the proximal ends of the radius and the ulna
humeroulnar joint
notch of the ulna and the trochlea of the humeral condyle
humeroradial joint
humeral condyle and the fovea articularis of the radial head
proximal radioulnar joint
radial notch of the ulna and the articular circumference of the radial head
pradioulnar syndesmosis
side to side
