Joints Flashcards
(33 cards)
Diarthrosis
Freely movable joint
All synovial joints
Synarthrosis
Aka Gomphosis
Immovable joint
The pubic symphysis is normally immovable but softens during pregnancy to allow fetal movement through the pelvis. What physiologic change during pregnancy allows this joint to loosen?
Hormones such as relaxin, estrogen, and prosesterone soften the joint
Secretes synovial fluid
Synovial membrane
Fibrous joint
Interosseous membrane
Dentoalveolar joint
Suture
Cartilaginous joint
Symphysis
Synchondrosis
Intervertebral joints
Synovial joints
Articular capsule and cartilage
Bursae
Menisci
Free movement
When the epiphyseal plate closes, becoming the epiphyseal line, a ____ becomes a ____
Synchondrosis becomes a synostosis
People who are “double-jointed” have extra flexibility in their joint capsules and ligaments. This seems like an advantage, but what is the downside?
Less stability, easier to dislocate
The more mobile a joint, the ____ and the more likely to be found in the ____
skeleton it is.
More complex
Appendicular
Circumduction movement
Flexion + extension + abduction + adduction
Flexion movement
Knee movement to touch heel to gluteal region 
Opposition movement
Moving the thumb across the palm to touch the fingers
Plantar flexion movement
Ankle movement to press down gas pedal
Inversion movement
Ankle movement to bring soles of feet together
Protraction movement
Pushing the jaw forward 
Depression movement
The jaw dropping 
Abduction movement
Shoulder movement to raise the arm from the side to 90°
R/L rotation movement
Turning the head to one side, keeping the eyes level 
Pronation movement
Radius crossing over ulna, turning palm down 
R/L lateral flexion movement
Neck movement to touch ear to shoulder 
Medial rotation movement
From anatomic position, turning the palms to face each other 
Plane joint
Joints in wrist and ankle
Clavicle meeting sternum & acromion
Joints between wrist and hand
Pivot joint
Atlas meets axis
