Musculature of the Medial compartment of the Thigh Flashcards
What are the muscles included in the Medial Compartment
- Gracilus
- Adductor Longus
- Adductor Brevis
- Adductor magnus
- Obturator externist
What is the main action for the Medial Compartment muscles
Adduction
What is the most medial muscle of the medial compartment
Gracilis
What is the adductor hiatus?
The opening between the adductor magnus adductor portion and hamstring portion
What is the nerve that sandwiches the adductor Brevis muscle?
Obturator Nerve
What innervates the adductor longus and adductor Brevis?
Anterior division of obturator nerve
What innervation do the gracilis and the obturator externist share?
Obturator nerve
What are the attachments for the adductor longus?
- Body of the pubis
- Middle 1/3 of the linea aspera
What are the attachments for the adductor Brevis?
- Body of pubis and inferior pubic ramus
- Pectineal line and proximal linea aspera
Since the gracilis is most medial, it starts at the ______ and goes to the ______
- Body and inferior pubic ramus
- Superior part of the medial surface of the tibia
This muscle is NOT a true hamstring
Obturator Magnus
What are the 3 portions of the adductor magnus from superior to inferior
- Adductor minimus
- Adductor portion
- Hamstring portion
This muscle is the most powerful adductor of the thigh
Adductor magnus
Where does the adductor part of the thigh attach?
To the linea aspera of the femur
T/F- The adductor magnus can flex the thigh?
True
What are the attachments for the hamstring part of the adductor magnus?
- Ischeal tuberosity
- Adductor tubercles
What criteria does the adductor magnus hamstring part not meet to qualify as a hamstring muscle
-Does not cross the knee
What innervates the adductor magnus hamstring part
Tibial branch of Sciatic nerve (same as Hamstrings)
This canal is a narrow tunnel in the fascia that is deep to the middle 1/3 of the Sartorius muscle
Adductor canal
What is the roof of the adductor canal?
Sartorius muscle
What is the end of the adductor canal?
Adductor hiatus (where the 2 parts of adductor magnus split)
What is the beginning of the adductor canal?
Where the Sartorius muscle contacts the adductor longus muscle
What 4 structures enter the canal?
- Femoral artery
- Femoral vein
- Saphenous nerve
- Nerve to vastus medialis
What are the only 2 structures that continue on the canal until it reaches the hiatus and continue into the popliteal fossa?
- Femoral vein
- Femoral artery
What muscle has to be removed in order to see the adductor hiatus?
Vastus medialis
The femoral artery and vein undergo this name change as they pass through the popliteal fossa?
-Popliteal artery and vein
What comprises the fascial covering of the structures of the adductor canal?
Anteromedial Intermuscular Septum
The external iliac artery travels _______ and _____ to the inguinal ligament?
-Inferiorly and deep
External iliac enters the femoral triangle and changes names to…
Femoral artery
What is the name of the deep branch of the femoral artery?
Profunda femorus
What branches does the Profunda femorus give off?
Circumflex femoral artery
The profunda femorus sends _______ to the posterior compartment
Perforating branches
Does the posterior compartment have any artery coursing through it?
No
Femoral artery–> _________ after it crosses the adductor hiatus
Popliteal artery
What are the 2 terminal branches of the popliteal artery?
-Anterior and posterior tibial artery
What is the largest branch of the lumbar plexus?
The femoral nerve
Where does the femoral nerve originate?
Within the psoas major muscle
Where does the femoral nerve travel?
-Lateral to the psoas major on the surface of the iliacus, deep to the middle of the inguinal ligament and into the thigh
What is the farthest reaching branch of the Femoral nerve?
Saphenous nerve
enters the adductor canal but exits medially before completing the canal
