Pelvis and Hip Flashcards
This is defined as the inferior portion bounded by sacrum, pelvic bones and coccyx
True Pelvis
Briefly review this image of the true pelvis
Real quick, just briefly look at this
It’s that time again! Check out this rad new diagram! WOAH!
What born forms the roof of the acetabulum?
Ilium
Some general features of the sacrum. What is the…
Shape:
Articulates with:
___ pairs of anterior and posterior sacral foramina for nerve roots
Inverted Triangle
Iliac Bone
4
What is the largest bone in the body?
Proximal Femur
What types of motion does the hip joint allow for?
Flexion, Extension, Abduction, Adduction, Internal and External rotation, circumduction. Pretty much, everything
How many ligaments reinforce the multi-axial synovial ball and socket hip joint?
3
Diagram of the vascular blood to the hip and pelvis. HOW HIP! HAHA
What direction does the blood supply to the femoral head?
Distal to proximal
One of the major issues of the blood supply to the femoral head
Susceptible to avascular necrosis due to the distal to proximal running
Major action of the Psoas major
Flex the hip
Origin of the Psoas Major
Bodies and transverse processes of L1-4
Major actions of the Iliacus
Flex the hip
Origin of the Iliacus
Iliac fossa
From lateral to medial, order these in the femoral triangle
Vein, Artery, Nerve
Nerve, Artery, Vein
Major actions of the muscles in the gluteal region
Abduct, extend, and laterally rotate the femur relative to the pelvic bone
What is the only gluteus muscle that does NOT insert on the greater trochanter
Gluteus Maximus
Where does the gluteus maximus insert?
Iliotibial tract (upper fibers)
Gluteal tuberosity
Major actions of the gluteus medius
Abduct hip
Flex hip
Medially rotate hip
Extend hip
Laterally rotate hip
Actions of the gluteus minimus
Abduct hip
Medially rotate hip
Flex the hip
Function of the Quadratus femoris, gemellus inferior, gemellus superior, obturator internus and obturator externus
Laterally rotate the hip
Where do the Psoas Major and Iliacus insert to?
Lesser trochanter
Femoral nerve leaves the pelvis _________
Sciatic nerve leaves the pelvis ___________
Anteriorly
Posteriorly
Which compartment flexes the thigh and extends knee?
Anterior
Which compartment of muscles of the thigh adduct the thight at hip joint?
Medial
Which muscles of the thigh compartment extends the thigh at the hip joint adn flex the leg at the knee joint?
Posterior
How many of the 6 muscles of the medial compartment of the thigh are used to adduct the thigh at hip joint?
5/6
Check out these medial compartment adductors of the hip! Or don’t, I don’t really mind one way or the other
True or false, the gracilis crosses the knee joint
True! It does!
What is the strongest muscle of the body?
Sartorius flex hip
Of the four quadriceps, which two cross 2 joints?
Rectus and Femoris
What is the longest muscle in the body?
Sartorius
The two major functions of the quadriceps
Flex thigh and extend knee
Major functions of the hamstrings
Flex the leg at the knee joint
Extend thigh at the hip joint
Which nerve innovates 3 of the 4 hamstring muscles?
Tibial
Hey, check out these important muscle origins diagram if you want. You don’t have to if you don’t want to, but it may be a good idea I guess. Okay bye, have fun
Veins of the leg diagram
Check out this nifty diagram of the nerves of the thigh
Bones of the pelvis diagram
What is the acetabulum?
Socket of the hipbone at which the femur inserts into
