MHS Module 7 - classify bones p1

how are bones classified:

microscopic anatomy (compact and spongy bone)

porosity

size and shape

describe long bones:

longer than wide

has tubular shaft (diaphysis)

has expanded articular ends (epiphyses)

describe short bones:

cube shaped ± equal length and width

describe flat bones:

thin plate-like

describe irregular bones:

no definable shape

describe sesamoid bones:

short bones

develop within tendons subjected to pressure

increase lever function of muscles

largest sesamoid bone: patella

what are anatomical features of bone:

secondary features

acquired in postnatal life

define articular surface:

where bone forms a joint

explain the named structures of bone iq/

head: expanded upper end

neck: narrowing

shaft: body

epiphyses: expanded ends of bones

define condyles:

knuckle shaped projections

define epicondyles:

small projections adjacent to condyles

what is tubercle/tuberosity/trochanter:

roughly rounded projections

define fossa:

depressions

define grooves or sulci:

elongated depressions

define process:

bondy projections

define foramen:

vessels and nerves

name and describe the 2 divisions of the human skeleton:

axial skeleton: bones of central line or axis: head, neck and trunk (longitudinal axis)

appendicular skeleton: bones of limbs and girdles

explain gross anatomy of human skeleton:

total 206 bones in body

bones and joints