Support and Movement

pull

contract

relax

push

chondrocytes

osteocytes

zoophytes

lymphocytes

bend the joint

straighten the joint

push the joint

pull the joint

rheumatoid osteoporosis

gout

osteoarthritis

rheumatoid arthritis

hinge joints only

ball-and-socket joints only

fixed joints

hinge and ball- and -socket joints

6 bones

8 bones

10 bones

4 bones

ball-and-socket joints

moveable joints

slightly moveable joints

immoveable joints

cartilage

muscles

bone

tendons

206 bones

212 bones

306 bones

315 bones

coordinators

oppositely working muscles

antagonists

muscles