Skeletal System Ch. 2 Flashcards
(32 cards)
Human Body made of ____ bones.
206
Axial Skeleton
Cranial bones, facial bones, hyoid, vertebral column, ribs.
Appendicular Skeleton
U/E: Scapula, clavicle, humerus, ulna, radius, carpals, metacarpals, phalanges.L/E: Pelvis, femur, fibula, tibia, patella, tarsals, metatarsals, phalanges.
Osteoblasts
Cells that form bone.
Osteoclasts
Cells that break down bone.
Epiphysis
Expanded portion at each end.
Diaphysis
Shaft of bone
Periosteum
Thin fibrous covering that encloses bone encloses bone except for area covered by hyaline cartilage.
Epiphyseal plate
Made of cartilage. Founding growing bones.
Pressure Epiphysis
Located at ends of long bones where they receive pressure from the opposing bone making up that joint.
Traction Epiphysis
Located where tendons attach to bones and are subjected to bones and are subjected to pulling, or traction force.
Long Bones
Length is greater than width.
Short Bones
Somewhat equal dimensions.
Flat Bones
Platelike structures with broad structures.
Irregular Bones
Variety of shapes.
Sesamoid Bones
Small bones located where tendons cross the ends of long bones in the extremeties.
Meatus
Canal or tubelike opening in a bone.
Sinus
Air-filled cavity within a bone.
Facet
Flat or shallow articular surface.
Head
Rounded articular projection beyond a narrow neck-like portion of bone.
Foramen
Hole through which blood vessels, nerves, and ligaments pass.
Fossa
Hollow or depression.
Groove
Groove containing a tendon or blood vessel.
Condyle
Rounded knuckle-like projection.