Kinesiology - Bone quiz

Main functions of skeletal system

Structural support, protection, growth center for cells, reservoir of minerals, movement

Structural support

supports soft tissue including muscles and internal organs

Protection

Protective cage for delicate body parts

Growth centre for cells

Produces red blood cells + platelets

Reservoir of minerals

reservoir the body can call upon to regulate calcium and phosphorus in the body

Movement

Tendons attach muscle to bones, bones contract and move bones for movement

Long bone

Found in arms and legs (femur)

Short bones

most common in wrists (carpal bone + ankles)

Flat bone

Flat + thin (roof of skull)

Irregular bone

odd looking bone (sphenoid + vertebrae)

Sesamoid bone

Unusual, small, flat bones wrapped within tendons moving over bony surface (patella)

Axial skeleton

Includes vertebral column, skull, and rib cage (80 bones)

Appendicular skeleton

Includes movable limbs (126 bones)

landmark

Ridge, bump, groove, depression, or prominence on surface of body

landmark function

guide to location of other body structures

Cartilage

At both ends of bone, allow smooth movement within joints

Periosteum

Covers entire length of bone

Medullary cavity

Filled with red + yellow bone marrow, where wbc forms

Epiphysis

Portion of bone at either end made of compact bone, covered in articular cartilage

Epiphyseal plate

responsible for growth of long bones

Compact bone

80% of body

Calcellous bone

20% of body