Posterior thigh and lower extremity blood flow Flashcards
(21 cards)
Posterior thigh muscles
Actions
Innervation
Blood supply
Action - hip extensors and knee flexors
Innervation - tibial division of sciatic nerve
Blood supply - perforating branches of deep femoral artery
Where do all the posterior thigh muscles originate
ischial tuberosity
How many perforating branches are there off the deep femoral artery
trick question, it can vary
What 2 nerves the sciatic nerve branch into
tibial and common fibular nerves
Poplitleal region boundaries
Superomedial
Superomedial - Semi membranosus
Components of the popliteal region
Popliteal artery and vein
TIbial Nerve
Common fibular nerve
lymphatic vessels
Posterior femoral cutaneous nerve
Small saphenous vein
Popliteal region border
Superolateral
Biceps femoris
Popliteal region border
Inferolateral
Lateral gastroc head
Popliteal region border
Inferomedial
Medial gastroc head
What space is located between the 2 attachments of adductor magnus
adductor hiatus (femoral artey and vein pass though here)
What is the action of the popliteus
Unlocks knee during flexion by rotating tibia
Unlocks knee during hyperextension by rotating femur
This shows up in about 2-5% of the population in the gastrocnemius and occasionally joins in with medial head compressing popliteal vessels
3rd head of gastroc
Occurs when synovial fluid escapes from the synovial cavity or with a herniation of a bursa in the popliteal region
Popliteal cysts (bakers cyst)
What does the external iliac artery become after passing though the inguinal ligament
Femoral artery
What artery branches off from the femoral artery
Deep femoral artery
What arteries branch off from the deep femoral artery descending order
Lateral femoral circumflex
Medial femoral circumflex
Perforating arteries of the deep femoral
What does the femoral artery become after it passes through the adductor hiatus
Popliteal artery
what does the popliteal artery branch into
Anterior tibial
Posterior tibial (peronial/fibular artery comes off of this)
What does the tibialis anterior artery become once it passes through the tarsal bones
Dorsalis pedis artery
What does the posteiror tibial artery divid into after going pasted the tarsal bones
Medial plantar artery
Lateral plantar artery
What are the names of the ateries the branch off the popliteal artery for the knee
Superior medial genicular
Superior lateral genicular
Inferior medial genicular
Inferior lateral genicular
