Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
34 Cards in this Set
- Front
- Back
|
WHere does the sciatic nerve course just inferior to the piriformis?
|
Midway between the ischial tuberosity and lesser trochanter
|
|
|
What are the 2 surface anatomy land marks on posterior of knee?
|
Semitendinosus tendon-medially and long head of biceps femoris tendon laterally
|
|
|
What is the action of the piriformis and its attachments?
|
Lateral thigh rotator\stabilizer
sacrum, through GSF to greater trochanter |
|
|
What are the 2 other lateral rotators inf and sup to Obturator internus?
|
inferior and superior gemellus
|
|
|
Where does the quadratus femoris attach and what does it do?
|
lateral rotator of thigh and goes from ischial tuberosity to intertrochanteric crest
|
|
|
What compartment is the obturator externus in where does it insert and what innervates it?
|
Medial, trochanteric fossa, obturator nerve
|
|
|
Where does the Tensor facia lata muscle attach? Innervation?
|
Illiac crest, ASIS to the IT band
Superior gluteal nerve |
|
|
What is the innervation of the Gluteus maximus muscle and and its 2 insertion points?
|
Inferior Gluteal N.
Deep- gluteal tuberosity Superficial- IT tract |
|
|
What is exhibited by individuals with superior gluteal nerve damage? Muscles affected?
|
Trendelenberg sign=hip drop on contralateral side due to lack of innervation to G med\min and TFL
|
|
|
What is IT band syndrome?
|
Inflamation of IT band over the lateral femoral epicondyle and greater trochanter
|
|
|
What are the 3 bursa of the gluteal region and where are they located?
|
Ischial bursa- Btwn ischial tuberosity and gluteus maximus
Trochanteric bursa- btwn greater trochanter and GM Gluteofemoral bursa- between IT band and Vastus lateralis |
|
|
What are the actions of the posterior thigh muscles?
|
Extend hip, flex knee and rotate FLEXED knee(except Adductor magnus hamstring portion)
|
|
|
What is the common origin of hamstring muscles?
|
Ischial tuberosity
|
|
|
What nerve innervate the posterior thigh muscles? Vasculature supply?
|
Sciatic nerves tibial division
Deep artery of the thigh |
|
|
What are the muscles of the posterior thigh?
|
Semitendinosus
Semimembranosus Biceps femoris(2 heads) Adductor magnus-hamstring portion |
|
|
What are the actions of the semitendinosus? Distal attachment
|
Extend thigh, flex knee
medially rotated FLEXED knee superomedial tibia |
|
|
What are the actions of the semimembranosus? What structure is formed by its distal attachment?
|
Extend thigh, flex knee
medially rotated FLEXED knee Medial tibial condyle, continuous with oblique popliteal ligament |
|
|
What are the actions of the long head of the biceps femoris? Attachments? Innervation
|
Extend hip, flex knee and laterally rotate flexed knee
Ischial tuberosity to fibula head Tibial branch of Sciatic |
|
|
What are the actions of the short head of the biceps femoris? Attachments and innervation?
|
Flex knee(only crosses knee)
Linea aspera to fibula head tibial division of sciatic |
|
|
What muscle protects the sciatic nerve in the posterior thigh?
|
Long head of biceps femoris (gluteus maximus in gluteal region)
|
|
|
What is formed between the insertions of the femoral and hamstirng portions of the Adductor Magnus?
|
Adductor hiatus
|
|
|
What is the insertion of the Hamstring portion of the Adductor magnus?
|
Adductor tubercle
|
|
|
What is the pes asisurinus? What 3 muscles attach there?
|
"Goose-foot" Tendinous insertion of Sartorius, Gracillis, and semitendinosus
|
|
|
What are 3 causes of pain in the pes asurinus and what movements exacerbate it?
|
Tendinitis, fasciitis, and bursitis
Side to side movement |
|
|
What are the 2 divisions of the Sciatic nerve and what do they innervate?
|
tibial n.- posterior leg and foot
Common fibular N.- anterior and lateral leg, dorsal foot |
|
|
What causes piriformis syndrome?
|
Impingment of the sciatic nerve by the piriformis nerve, more often the posterior division
|
|
|
How is the sciatic nerve avoided in gluteal injections?
|
Injection in the upper outer quadrant
|
|
|
What are the dermatomes of the gluteal region?
|
L3-L5 superolaterally
S1-S5 inferomedially |
|
|
What dermatomes supply the posterior thigh?
|
S1 and S2
|
|
|
What supplies vasculature to the posterior thigh?
|
Perforating branches of the deep femoral artery and vein
|
|
|
How does lymph drain from the deep gluteal region?
|
Superior and inferior gluteal nodes to internal iliac, etc
|
|
|
How does lymph drain from the superficial gluteal region?
|
Superficial inguinal nodes to external iliac nodes, etc
|
|
|
How does lymph drain the deep posterior thigh?
|
Deep inguinal nodes to external iliac nodes
|
|
|
How does lymph drain from the superficial posterior thigh?
|
Superficial inguinal nodes to external iliac nodes?
|
