Lecture 18: Hip and Thigh Flashcards
Median nerve wasting causes what?
Ulnar nerve wasting causes what?
Median nerve = thenar wasting
Ulnar nerve = hypothenar wasting
Radial nerve wasting causes what?
Constant flexion of the wrist (dad getting snacks hand)
The __________ ______ ________ splits into the _______ and __________ iliac artery at the pelvis.
Common iliac artery, external, internal
The external iliac artery turns into the __________ artery, with the ______ artery resting against the femur.
Femoral, deep
Where is the popliteal artery located?
Behind the knee
The anterior tibial artery turns into what? The posterior tibial artery?
Anterior = dorsal pedal artery
Posterior = medial plantar artery
The lumbosacral plexus goes from _____-_______.
L1, S4
The femoral nerve is responsible for __________ of the ________. Located at which spinal levels? Extensors of the lumbosacral nerves are located at the ________.
Extension, knee. L2-L4, front.
The obturator nerve is responsible for _________ of the _______. What spinal levels?
Adduction, hip. L2-L4
The sciatic nerve contains the _________ and ______ nerves, located where?
Tibial, fibular. L4-S3.
The tibial nerve is responsible for which three functions? Where is it located/
Knee, plantar, intrinsic foot flexion. L4-S3.
The fibular nerve has which three functions? Where is it located.
Dorsiflexors, extensors/everters of the foot. L4-S2.
What are the 2 extensors of the lumbosacral plexus? 3 flexors?
Extensors = femoral, fibular.
Flexors = obturator, sciatic, tibial nerve.
Which three bones fuse together to form the os coxae? What is the fusion called?
Ischium, pubis, ilium @ acetabulum
What are the three joints of the pelvis?
Sacroiliac, pubic symphysis, hip
The sacroiliac connects the ________ and ______. It is a _________, synovial joint. It is relatively immobile due to strong ___________.
Sacrum, ilium, bilateral, ligaments.
Which two ligaments of the sacroiliac joint form openings for peripheral nerves. What are there two openings called?
Sacrospinous lig, sacrotuberous lig. Openings: greater & lesser sciatic foramens.
The _______ nerve is inferior to the piriformis and innervates the _________.
Sciatic, hamstrings.
The superior gluteal nerve is _______ to the piriformis. What two muscles does it supply?
Superior. Gluteus medius/minimum, tensor fascia latae.
The inferior gluteal nerve is ________ to the piriformis and supplies what?
Inferior, gluteus maximus.
The pubic symphysis is a ________ joint. It contains ________ cartilage on the edge of bones and a _________ disc in between. Is it mobile?
Cartilaginous, hyaline, fibrocartilage. No, relatively immobile.
Which three ligaments exist on the hip joint?
Iliofemoral, pubofemoral, ischiofemoral
What are the five main muscle groups that affect movement?
Flexors, extensors, abductors, adductors, deep rotators.
What are the two pelvic flexors? What are their nerves and functions?
Iliopsoas = femoral N, primary hip flexor.
Quadratus lumborum = 12th thoracic N, pelvis stabilization during walking.
Gluteus maximus is supplied by the _______ gluteal N, responsible for which 2 functions?
Inferior. Hip extension, lateral rotation.
Gluteus medius/minimus is supplied by the _____ gluteal N. Which three functions?
Inferior. Hip abduction, internal rotation, pelvic stabilization.
The tensor fascia latae is supplied by the ________ gluteal N. It _____ and _______ the hip and tenses what?
Superior, abducts, flexes, fascia lata (IT band)
During walking, quadratus lumborum does what? Gluteus medius does what?
QL = contraction upwards of unplanted leg.
GM = contraction downwards on planted leg.
What are the four deep rotators? What is their main function?
Piriformis, gemelli, obturator internus, quadratus femoris. Function = lateral rotation of hips.
In terms of thigh compartments…
anterior = _______ N
medial = _________ N
posterior = ___________ N
Femoral, obturator, sciatic.
