The Lower Limb: Bones and Joints Flashcards
Important Parts: Bones of Lower Limb
Os coxae, innominate bone
A large irregular bone that connects the lower limb to the trunk.
Hip bone
Hip Bone
What are the parts of the Hip Bone
- Acetabulum
- Acetabular notch
- Acetabular fossa
- Obturator foramen
- 3 fused bones:
- Ilium
- Ischium
- Pubis
Hip Bone
a deep circular cup shaped depression on the lateral surface of the hip bone below its middle.
Acetabulum
Hip Bone
a gap on the inferior margin of the rim of acetabulum
Acetabular notch
Hip Bone
a flat central part of the acetabulum
Acetabular fossa
Hip Bone
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
Parts of the Ilium
- Body
- Wing or ala
Crest
lliac fossa
Auricular surface
Four spines
Anterior superior iliac spine
Anterior inferior spine
Posterior superior spine
Posterior inferior spine
Ilium
is the thin flattened upper part of the ilium above the body.
Ala or Wing
Ilium
upper curved border of the ala.
Iliac crest
Ilium
concave inner surface of the wing of ilium
Iliac fossa
Ilium
a rough, ear-shaped part posterior to the iliac fossa that articulates with the upper lateral part of the sacrum.
Auricular Surface
Ilium
What are the Four Spines of the Ilium?
- Anterior Superior Iliac Spine
- Anterior Inferior Iliac Spine
- Posterior Superior Iliac Spine
- Posterior Inferior Iliac Spine
Forms the lower two-fifths of the acetabulum and that part of the hip bone below and dorsal to the acetabulum.
Ischium
What are the parts of the Ischium
- Body
1. ischial spine
2. ischial tuberosity - Ramus
Ischium
pointed process that extends dorsally and medially from the body of the ischium.
Ischial spine
Ischium
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
Pubis
Parts of the Pubis
- Body
- Superior ramus
- Inferior ramus
- Pubic arch
- Pubic tubercle
- Pubic crest
Pubis
a very small process on the superior margin of the pubic bone slightly lateral to the pubic symphysis.
Pubic tubercle
Pubis
small ridge on the upper margin extending from the symphysis to the pubic tubercle.
Pubic crest
Pubis
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
(L = basin) a hollow curved cylinder with bony walls, at the inferior end of the vertebral column.
Pelvis
Pelvis
What are the part of the Whole Pelvis (9)
- Linea terminals or arcuate line or terminal line
- Superior aperture = inlet
- Inferior aperture = outlet
- True pelvis
- False pelvis
- Greater sciatic notch
- Lesser sciatic notch
- Sacrum
- Coccyx
Pelvis
a ridge of bone that begins at the upper margin of the symphysis pubis.
Linea terminalis (terminal line)
Pelvis
pelvic rim or inlet. Heart-shaped opening into the true pelvis.
Superior aperture (opening)
Pelvis
an opening at the lower end of the pelvis composed of the incomplete bony ring and ligaments.
Inferior aperture or outlet
Pelvis
or minor pelvis, is the cavity located between the inlet and outlet.
True pelvis
Pelvis
or major pelvis, lies above the plane of the inlet.
False pelvis
Pelvis
a deep notch on the posterior margin of the hip bone.
Greater Sciatic notch
Is along bone, and the longest bone in the body, extending from the hip to the knee.
Femur
Femur
What are the parts of the proximal extremity of the femur?
- Head and fovea capitis femoris
- Neck
- Greater trochanter
- Lesser trochanter
- Intertrochanteric crest
- Intertrochanteric line
Femur
small but definite hole at the center of the head.
Fovea capitis femoris
Femur
large prominence on the lateral surface of the upper femur.
Greater trochanter
Femur
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
Femur
is a ridge of bone that passes obliquely across the back of the upper femur between the greater and lesser trochanters.
Intertrochanteric crest
Femur
a ridge that extends obliquely across the anterior surface of the upper femur.
Intertrochanteric line
Femur
What are the parts of the Body
- Linea aspera
- Popliteal surface
Femur
a double bony ridge that passes longitudinally down the posterior surface of the body of femur.
Linea Aspera
Femur
What are the parts of the Distal extremity or end
- Medial condyle
- lateral condyle
- Intercondylar fossa
- Patellar surface
- Medial epicondyle
- Lateral epicondyle
- Adductor tubercle
- Popliteal groove