Lab 20-22: Anterior Thigh Flashcards
location of prepatellar bursa and infrapatellar bursa
prepatellar - anterior to patella
infrapatellar - near tibial tuberosity
longest vein in the body
great saphenous v
-embedded in superficial fascia for entire course
describe the saphenous opening
opening in the fascia lata inferior to the medial part of the inguinal ligament, about 4 cm inferolateral to the pubic tubercle
covers the saphenous opening
cribiform fascia
the superior, lateral and inferior borders of the saphenous opening form a crescent shaped edge called
falciform margin
veins and arteries emerging through the saphenous opening
superficial epigastric
superfiical and deep external pudendal
the veins will all drain into great saphenous
vasculature piercing through fascia lata slightly lateral to the saphenous opening
superficial circumflex iliac a and v
n. pierces fascia lata about 10 cm below the ASIS and supplies skin on anterior and lateral aspect of thigh
lateral femoral cutaneous n
n. pierces fascia lata about 8-10 cm below the inguinal ligament b/w lateral femoral cutaneous n and great saphenous v
intermediate femoral cutaneous n.
- branch of femoral n .
nerve parallel to and slightly lateral to the great saphenous v
medial femoral cutaneous (branch of femoral)
n supplies skin below the middle part of inguinal ligament
femoral branch of genitofemoral n.
n supplying mainly the scrotum or labium majus and some adjacent regions of thigh
ilioinguinal n.
what forms the patellar plexus
lateral femoral n
intermediate femoral cutaneous n
medial femoral cutaneous n
deep fascia of thigh
fascia lata
lateral thickening of fascia lata
iliotibial tract
proximal attachments of fascia lata
- laterally to the anterior part of the iliac crest, anteriorly to inguinal igament, medially to pubis and ischial tuberosity
- posteriorly continuous with fascia of the gluteal region
forms roof of popliteal fossa
popliteal fascia
what is the femoral sheath
- extension of transversalis fascia
- funnel shaped fascial tue that invests the proximal one or two in of the femoral vessels
- proximally the funnel opens into the abdomen and distally surrounds vessels and blends with their outer walls
structures which perforate through femoral sheath
- great saphenous v
- superficial branches of femoral a
- femoral branch of genitofemoral n
anterior wall of femoral sheath
extension of the transversalis fascia
posterior wall is continuation of fascia over iliacus and psoas major muscles
lateral compartment of femoral sheath
femoral a
femoral branch of genitofemoral n.
middle compartment of femoral sheath
femoral v
medial compartment of femoral sheath aka
femoral canal
- contains loose areolar tissue and small lymph vessels and deep inguinal lymph nodes
- site for femoral hernia
base of femoral triangle
inguinal ligament
direction of apex of femoral triangle
inferomedially
forms medial border of femoral triangle
adductor longus
is the femoral n a part of the femoral sheath
no
- lies between iliacus and psoas major muscles
where does the femoral n end
- about an inch below the inguinal ligament by breakin gup into its termina lm and cutaneous branches
what n supplies pectineus m
n to pectineus m branching off femoral n.
longest branch femoral n
saphenous n
largest branch of femoral a
profunda fermoris (from its lateral side)
a running medially across the pectineus and adductor longus m to pierce the deep fascia and supply the scrotum or labium majus
deep external pudendal a
superficial branches off the femoral a
superficial circumflex iliac a
supeficial epigastric a
superficial external pudendal a
the femoral v is _____ to a at the apex of femoral triangle
medial
- maintains this relationship unti lit disappears behind inguinal ligament to become external iliac v
major vv contributing to femoral v
great saphenous v
deep external pudendal v
profunda femoris v
roof of femoral triangle
- skin
- superficial fascia (w superficial inguinal lymph nodes)
- deep fascia (including cribiform fascia)
- superficial n and vessels
muscles forming floor of femoral triangle
adductor longus
pectineus
psoas major
iliacus
plexus of nerves below sartorius
subsartorial plexus
- saphenous n
- anterior division of obturator n
- medial femoral cutaneous n
last branch of femoral a before it exits the adductor canal
descending genicular a
terminal branches of descending genicular a
saphenous a
articular branch
three branches off the lateral femoral circumflex
- ascending branch [goes under tensor fascia latae to supply hip joint]
- transverse branch
- descending branch [courses inferiorly to supply quads and capsule of knee joint]
describe the two heads of rectus femoris
- straight head arises from the AIIS
- reflected head arises from above the acetabulum
