femur
- is the longest & strongest
bone of the body
shaft
upper end
lower end
side determination
- upper end
bears a round head - & is directed medially
- Lower end
is widely expanded
to form 2 large condyles
- the shaft is
convex forwards
anatomical position
- head is directed
medially upwards
& slightly forwards
- shaft is directed
obliquely downwards & medially
-so that the lower surfaces of
2 condyles of femur
lie in the same
horizontal plane
- head
- neck
- greater trochanter
- lesser trochanter
- intertrochanteric line
- intertrochanteric crest
- fovea(pit)
- quadrate tubercle
- cylindrical
- narrowest in the middle
- is more expanded inferiorly
than superiorly
1.piriformis
inserts into the apex
2.gluteus minimus
inserts into the rough
lateral part of anterior surface
3.obturator internus
&
- the 2 gemeli
inserts into theupper rough impression on medialsurface
5.the obturator externus
inserted into the
trochanteric fossa
- gluteus medius
inserted into the
ridge on the lateral surface
- the trochanteric bursa
of gluteus max lies behind
the ridge
in middle 1/3rd
in posterior border
- linea aspera
has distinct
medial & lateral lips
upper 1/3rd
2 lips of linear aspera
diverge
to form 4 borders
medial
lateral
spiral
lateral lip
of gluteal tuberosity
lower 1/3rd
gluteal tuberosity
broad roughened ridge
on lateral part of
posterior surtace
the 2 lips of linea aspera divide
as supracondylar lines
to enclose
the popliteal surface
has 4 borders
medial
lateral
medial supracondylar line
lateral supracondylar line
4 surfaces
anterior
medial
lateral
popliteal
3 borders
medial
lateral
posterior
3 surfaces
anterior
medial
lateral
convex forwards
is directed medially
widely expanded to form
2 large condyles
one medial
one lateral
anteriorly
the 2 condyles are
united & are in line
with the front of the shaft
posteriorly
they are seperated
by a deep gap- the
intercondylar fossa/notch
lateral condyle
- is flat laterally & more in line with the shaft
- so it takes greater part in transmission of
body weight to tibia - is less prominent than the medial condyle,
but is stouter & stronger
- lateral epicondyle
- the popliteal groove
just below the epicondyle - a muscular impression ???
medial condyle
- convex medially
- the medial epicondyle
- posterosuperior-the adductor tubercle
- the epiphyseal line
passes through it.
intercondylar fossa
- attachment to
the ligament of head of femur
ligament teres/femoris
- insertion of quadratus femoris
- psoas major
apex & medial part of
anterior surface
- iliacus
anterior surface of
base of trochanter
& area below it
smooth posterior surface
bursa that lies
deep to the upper horizontal fibers
of adductor magnus