Skeletal system Flashcards
Anatomy
Skeletal system
Network of bones, joints, and connective tissue
Long bones
Tubular shape with expanded ends
( Femur, Humerus )
Short Bones
Cube shaped, with similar lengths and widths
( wrist [CARPLES]and ankles [TARSALS] )
Flat Bones
Thin flat surfaces
( skull, scapulae, and ribs )
Irregular bones
Complex shaped bones ( does not fit in with the other bones )
( vertebrae and facial bones )
Sesamoid bones
small bones rounded
( Patella [ kneecap] and joints )
Wormian Bones
small bones found in between cranial bones
Bone composition
Bone made of minerals
(Calcium phosphorus Collagen fibers living cells )
Osteogenesis
the development of bones
( Bones undergo a constant process of formation )
Osteoblasts
Builds bone tissue
Osteoclasts
break down bone tissue in a process called bone remolding
The balance between osteoblasts and osteoclasts does what ?
maintain bone density and shape
Epiphyseal plate
longitudinal ( lengthwise) growth
joints
interactions between two or more bones, muscles, and connective tissues
Joint structure
joints are when two or more bones meet
( FIBRAS, CARTILAGINOUS, AND SYNOVIAL)
Three joint structures names
( the roses )
Synarthroses, Amphiarthroses, Diarthroses
Synarthroses ( JS)
are immovable joints
Amphiathroses
are slightly moveable joints
Diarthroses
freely moveable joints
Synovial joints
articular capsule surrounding the joint
Muscle attachment and Movement
tendons attach muscles to bones, allowing movement
Bone and joint movement
flexion decreases the angle between two bones
