3.2 Bones of the Lower Limb Flashcards
Pelvic Girdle
- Right hip bone or os coxae or innominate bone
- Left hip bone or os coxae or innominate bone
3 fused bones
- Ilium (2/5)
- Ischium (2/5)
- Pubis (1/5)
Pelvis
- Right hip bone
- Left hip bone
- Sacrum
- Coccyx
Thigh
- Femur or thigh bone
- Patella or knee cap
Leg or Crus
- Tibia or shin bone
- Fibula or calf bone
a large irregular bone that connects the lower limb to the trunk
Hip bone
a deep circular cup shaped depression on the lateral surface of the hip bone below its middle
Acetabulum
a gap on the inferior margin of the rim of acetabulum
Acetabulum notch
a flat central part of the acetabulum
Acetabular fossa
large opening in the inferior part of the hip bone between the pubis and ischium
Obturator foramen
it forms the upper two-fifths of the acetabulum, and all of the hip bone above it
Ilium or flank bone
is the thin flattened upper part of the ilium above the body
Ala or wing
upper curved border of the ala
Iliac crest
concave inner surface of the wing of ilium
Iliac fossa
a rough, ear-shaped part posterior to the iliac fossa that articulates with the upper lateral part of the sacrum
Auricular surface
four spines of the ilium
ASIS, AIIS, PSIS, PIIS
forms the lower two-fifths of the acetabulum and that part of the hip bone below and dorsal to the acetabulum
Ischium
pointed process that extends dorsally and medially from the body of the ischium
Ischial spine
large rounded process on the posterior surface of the lower end of the body of ischium
Ischial tuberosity
forms the anterior one-fifth of the acetabulum and the anterior part of the hip bone in front of the acetabulum and obturator foramen
Pubis
a very small process on the superior margin of the pubic bone slightly lateral to the pubic symphysis
Pubic tubercle
small ridge on the upper margin extending from the symphysis to the pubic tubercle
Pubic crest
is the curved surface formed by the medial margins of both inferior rami of the pubic bones and the lower border of the symphysis pubis
Pubic arch
a hollow curved cylinder with bony walls, at the inferior end of the vertebral column
Pelvis (Latin = basin)
a ridge of bone that begins at the upper margin of the symphysis pubis
Linea terminalis (terminal line)
pelvic rim or inlet, Heart-shaped opening into the true pelvis
Superior aperture (opening)
an opening at the lower end of the pelvis composed of the incomplete bony ring and ligaments
Inferior aperture or outlet
is the cavity located between the inlet and outlet
True pelvis – or minor pelvis
lies above the plane of the inlet
False pelvis – or major pelvis
a deep notch on the posterior margin of the hip bone
Greater Sciatic notch
is a long bone, and the longest bone in the body, extending from the hip to the knee
Femur
small but definite hole at the center of the head
Fovea capitis femoris
large prominence on the lateral surface of the upper femur
Greater trochanter
much smaller rounded process that extends medially from the posteromedial margin of the upper femur at the junction of the neck and shaft
Lesser trochanter
is a ridge of bone that passes obliquely across the back of the upper femur between the greater and lesser trochanters
Intertrochanteric crest
a ridge that extends obliquely across the anterior surface of the upper femur
Intertrochanteric line