lab Flashcards
which nerve pierces the crural fascia
superficial peroneal nerve
what two muscles in the anterior comparment take partial origin from deep fascia of leg
EDL and TA
origin of peroneus brevis
DISTAL 2/3 of lateral surface of fibular shaft, partially overlaps peroneus longus
I: tuberosity of 5th met
how does the common peroneal nerve course
courses around neck of fibula and into tunnel between peroneus long and fibula
what n. accompanies the anterior tibial recurrent artery
recurrent articular branch of the common peroneal nerve
sesamoid bone i lateral head of gastroc
fabella
what innervates and supplies the gastrocnemius
sural branch of tibial n
sural branch of popliteal a
where does the popliteal artery terminate and give its terminal branches
inferior border of popliteus muscle
where does the circumflex fibular artery course and end up? what is it a branch off of
course around neck of fibula to joint circumpatellar anastamosis
branch off ant tib more, but could be from post tib too
where does the prepatellar bursa and infrapatellar bursa locate
prepatellar bursa anterior to patella
infrpatellar bursa near tibial tuberosity
what closes the saphenous opening?
cribiform fascia
what makes up the falciform margin
superior, inferior, lateral border form a sharped-crescent edge
what other structures are emerging through the saphenous opening
superficial epigastric, superficial and deep external pudendal arteris and veins
where do the lateral, medial, and intermedial femoral cutaneous nerve branch from?
lateral femoral cutaneous: L2-L3
medial and intermediate are branches of femoral n
what forms the patellar plexus
lateral femoral, intermediate and medial femoral cutaneous n
attachments for IT band
Gurdy’s tubercle
attachment of the fascia lata
anterior part of iliac crest(laterally), inguinal ligament (anteriorly), pubis and ischial tuberosity (medially), continuous with fascia of gluteal posteriorly
what is located in the lateral, middle, and medai compartment of the femoral sheath?
Lateral: femoral artery and femoral branch of genitofemoral n
Middle: femoral vein
medial: deep inguinal lymph nodes
what makes up the femoral triangle?
what makes up the floor? (from medial to lateral)
where do the structures enter from the triangle
adductor longus (med), sartorious (lat), ingiuinal ligament (superior)
floor: adductor longus, pectineus, iliopsoas
structures enter subsartorial canal
what does the femoral nerve lie in between when it first branches out? where does it terminate?
iliacus and psoas major muscles
femoral nerve terminates below inguinal ligament
what are the superficial branches of the main trunk of femoral artery
superficial circumflex iliac
superficial epigastric
superficial external pudendal
what drains into femoral vein
great saphenous vein, deep external pudendal, profunda femoris
what contibutes to the subsartorial plexus
saphenous nerve, anterior division of obturator nerve, medial femoral cutaneous nerve
what leaves the adductor canal prior to popliteal fossa
saphenous n and saphenos branch of descending genicular artery
what is the last branch of femoral artery? what is that branches terminal branch?
descending genicular artery—> saphenous artery and articular branch
what composes the posterior wall of the distal part of the adductor canal? what nerve travels along the lateral wall?
adductor magnus
nerve to the vasust medialis
what artery runs between vastus intermedius and vastus lateralis and used to distinguish the two muscles?
lateral femoral circumflex artery
what nerve is located between the vastus medialis and intermedius
nerve to the articularis genu
what muscles are in the medial compartment of thigh
pectineus, gracilis, adductor longus and brevis, adductor magnus, obturator externus
what fibers do each part of the adductor magnus run? what innervates each part of the muscle?
horizontal fibers=adductor pt, innervated by obturator
hamstring(vertical): tibial n
the gluteus maximus covers all the heads of the posterior muscles except for which one
short head of the biceps femoris
what are the structures that are located in the popliteal fossa
sciatic n, tibial n, common peroneal n, popliteus, plantaris, medial and lateral sural cutaneous n
popliteal artery and its genicular branches
popliteal veins and its tributaries
small saphenous v
where does the tibial nerve exit when leaving the popliteal fossa
between the heads of gastrocnemius
what makes up the middle cluneal nerves
S1-S3
what makes up the superior cluneal nerves
L1-L3
what makes up the inferior cluneal nerves
branches of posterior femoral cutaneous `nerve
what does the neurovascular bundle contain? where does it lie in between?
posterior tibial vessels and tibial nerve, lies between FHL and FDL
TP muscle lies deep to bundle
what are the terminal branches of descending genicular artery
saphenous artery and articular branch
main attachment for gluteus maximus
iliotibial tract
where does the posterior femoral cutaneous nerve exit out through
greater sciatic foramen
on which side of the sciatic nerve does the nerve to the obturator internus come out from under the piriformis
medial side
what goes through the lesser sciatic foramen
nerve to the obtruator internus, obturator internus, internal pudendal artery/veins/nerve
what structure runs with the superior gluteal nerve
deep branch of the superior gluteal artery
