Chapter 53 Flashcards
The femoral nerve crosses the ____ ___ and passed through the ____ _____.
inguinal ligament; femoral triangle
Branches of the femoral nerve supply all the muscles of the ______ thigh and _____.
anterior; pectineus
How many muscles are supplied by the femoral nerve?
7
The obturator nerve courses along the ____ ____ and dives into ____ branches that pass through the _____ _____.
pelvic brim; 2; obturator foramen
The posterior branch of the obturator nerve passes under _____ ____.
adductor brevis
What does the posterior branch of the obturator nerve innervate?
obturator externus, the adductor part of adductor magnus, and the knee joint
The anterior branch of obturator nerve passes between _____ _____ and ______ _____.
adductor brevis; adductor longus
How many muscles does the anterior branch of the obturator nerve innervate in the medial thigh?
3 muscles
The sciatic nerve courses through the greater sciatic foramen inferior to ______ and travels under _____ ____ into the ____ thigh.
piriformis; gluteus maximus; posterior
In the posterior thigh, the sciatic nerve courses between the _______ _____.
hamstring muscles
What does the tibial part of the sciatic nerve innervate?
1/2 adductor magnus (extensor portion)
1/2 biceps femoris (long head)
semimembranosus
semitendinosus
What does the common fibular part of the sciatic nerve innervate?
1/2 biceps femoris (short head)
The tibial and common fibular components will separate in the lower third of the _____, just proximal to the ______ _____.
thigh; popliteal fossa
The tibial nerve travels through the middle of the ____ ____ superficial to the _____ ______ and _____ _____ and medial to the ______.
popliteal fossa; popliteal vein; popliteal artery; plantaris
The tibial nerve courses between the heads of _____, goes under _____ and enters the _____ compartment of the leg.
gastrocnemius; soleus; deep
The tibial nerve passes deep to ____ ____ on the ____ side of the ankle where it divides into the ____ and _____ plantar nerves.
flexor retinaculum; medial; medial; lateral
What does the tibial nerve innervate? How many?
All the muscles of the posterior leg- 7 muscles
The common fibular nerve descends in the _____ _____ and ____ to the head of the fibula.
popliteal fossa; lateral
What does the common fibular nerve divide into?
superficial and deep fibular nerves
The superficial fibular nerve courses inferiorly in the ____ compartment of the leg between _____ ___ and ____ _____.
lateral; fibularis longus; fibularis brevis
What does the superficial fibular nerve innervate?
fibularis longus and fibularis brevis
The deep fibular nerve passes from the ____ to the ____ compartment.
lateral; anterior
What does the deep fibular nerve innervate?
the entire anterior leg including fibularis tertius (4 muscles)
the extensor digitorum brevis on the dorsum of the foot
The abdominal aorta divides into the ____ ____ arteries at the level of ____
common iliac; L4
The common iliac artery courses inferiorly and _____ for about _____ before dividing into the _____ and _____ iliac arteries along the _____ _____.
laterally; 5cm; internal; external; pelvic brim
The internal iliac artery courses ____ and _____ along the wall of the ____, giving off ___ branches.
inferiorly; posteriorly; pelvis;2
What are the 2 branches given off by the internal iliac artery?
superior and inferior gluteal arteries
The superior gluteal artery exits the pelvis at the ____ ___ ___ above ____ with the ____ ___ ___ and courses between the _____ ____ and ____ _____.
greater sciatic foramen; piriformis; superior gluteal nerve; gluteus medius; gluteus minimus
The interior gluteal artery exits the pelvis at the ___ ____ ___ with the ___ ____ ____ and lies deep to the ____ ____.
greater sciatic foramen; inferior gluteal nerve; gluteus maximus
The external iliac artery passes deep to the ____ ____ in the ____ ___ where is changes its name to the ____ ____.
inguinal ligament; femoral triangle; femoral artery
What does the external iliac artery change its name to AFTER crossing the inguinal ligament?
Femoral artery
The femoral artery courses through _____ ___, _____ thigh, and then passes from ___ to ____ through the ____ ____ where it becomes the ____ ____.
femoral triangle; anterior; anterior; posterior; adductor hiatus; popliteal artery
What artery is given off by the femoral artery?
profunda femoris artery
The popliteal artery courses ____ through the ___ ___ .
distally; popliteal fossa
Once the popliteal artery passes through the popliteal fossa what does it divide into?
Anterior and posterior tibial arteries in the proximal leg
The anterior tibial artery courses distally in the _____ compartment.
anterior
The anterior tibial artery changes its name at the level of the medial and lateral malleoli to what?
Dorsalis pedis
What does the dorsalis pedis supply?
The dorsum of the foot
The posterior tibial artery gives off what branch in the proximal leg?
Fibular artery
The posterior tibial artery descends through the ____ posterior leg, coursing with the ___ ____.
deep; tibial nerve
The posterior tibial artery passes deep to the ____ ____ on the ____ side of the ankle.
flexor retinaculum; medial
The posterior tibial artery terminates by diving into what?
medial and lateral plantar arteries
What do the medial and lateral plantar arteries supply?
plantar surface of the foot
The fibular artery supplies the ___ posterior muscles of the leg on the _____ side.
deep; lateral
