Anteromedial Thigh + Femoral Triangle Flashcards
What is acetabulum
- Where the three pelvic bones come together
- Socket of hip joint
What does inguinal ligament connect
ASIS to Pubic Tubercle
What connects two halves of the pelvis
- Coccyx / sacrum
- Pubic Symphysis
What is Linea aspera
Posterior dip in femur for muscle attachments
The humerus has anterior tubercles, the femur has _______
Posterior trochanters
Common iliac vessels divide into ________ at the _____
External and internal iliac, sacroiliac joint
External iliac vessel becomes _______ when passing _____ the ______
Femoral, under, inguinal ligament
Is femoral artery ant/post to the femur
Post
Femoral artery gives off __________ branch at the ______
Profunda Femoris, neck of femur
Profunda femoris branches into
Medial circumflex, lateral circumflex (-> descending branch), perforating arteries
Femoral artery enters ________ and becomes the ______
Popliteal fossa (behind knee), popliteal artery
When popliteal artery leaves popliteal fossa, it trifurcates into
Anterior Tibial (ant), Posterial Tibial (post), Fibular (post)
What is fascia lata
Deep fascia of the lower limb, envelops whole lower limb
What is saphenous opening
Hole in the fascia lata where saphenous vein meets femoral vein
Where is saphenous opening
Inferior to inguinal ligament
Where does fascia lata attach
Pelvis
- Sup to pubic tubercle, pubis, inguinal lig
- Lat to iliac crest
- Post to sacrum, coccyx, ischial tuberosity
Iliotibial Band function
Knee stability when knee is straight
What is iliotibial band
Fascia lata blended with tendon of tensor fascia lata muscle
Psoas Origin
L2-L4
Psoas Innervation
L2-L4 Spinal nerves
Psoas insertion
Lesser trochanter
Psoas movement
Flexes thigh
Externally rotates thigh
Iliacus
Origin Ilium
Iliacus Insertion
Lesser Trochanter
Iliacus Innervation
Femoral Nerve
Iliacus Movement
Flex thigh
External rotate thigh
Pectineus Origin
Superior Pubic Ramus
Pectineus Insertion
Lesser Trochanter
Pectineus Movement
Adducts thigh
Flexes thigh
Pectineus Innervation
Femoral and Obturator Nerve
Why is Pectineus innervated by both Femoral and Obturator
It lies between the anterior and medial compartments
Tensor Fascia Lata muscle Origin
ASIS
Tensor Fascia Lata insertion
Iliotibial band (which is then really long and continues down to tibia)
Tensor fascia lata muscle Innervation
Superior GLuteal Nerve
Tensor fascia lata muscle Movement
THigh abduction
Thigh Flexion
Sartorius Origin
ASIS
Sartorius Insertion
Pes Anserinus (medial proximal tibia)
Sartorius Innervation
Femoral Nerve
Sartorius Movmeent
FLexes knee
Externally rotates thigh
(Ie gets you to sit)
PES Anserinus
Goose foot tendon, bit useless so we use it for a graft
4 Quads
Rectus femoris, vastus lateralis/intermedius/mediallis
Vasti Muscles Innervation
Femoral Nerve
Vasti Muscles Origin
Proximal Femur
Vasti Muscles Insertion
Quadriceps tendon -> Patella
Vasti Muscles Movement
Knee extension
Rectus Femoris Origin
- AIIS
- Acetabulum
Rectus Femoris Insertion
Quadriceps tendon -> patella
Rectus Femoris Movmeent
Knee extension (as quad muscle)
Thigh Flexion
Anterior Thigh muscles
Pectineus
Iliacus
Psoas
Tensor Fascia Lata
Sartorius
Quads: Rectus Femoris, Vastus Lat/int/med
Medial Thigh Muscles
Adductor Longus
Adductor Brevis
Adductor Magnus
Gracilis
Medial Thigh Muscles All do…
Adduct thigh
Medial THigh muscles all supplied by
Obturator Nerve
Adductor Longus Origin
Pubis
Adductor Longus Insertion
Linea Aspera
Adductor Longus Movement
Adduction Flexion thigh
Adductor Longus Innervation
Obturator
Adductor Brevis Origin
Pubic Ramus
Adductor Brevis Insertion
Linea Aspera
Adductor Brevis Innervation
Obturator
Adductor Brevis Movement
Adduction and Flexion thigh
Adductor Magunus Origin
- Adductor Part = Pubic Ramus
- Hamstring Part = Ischial Tuberosity
Adductor Magnus Innervation
Obturator and Sciatic (Tibial)
Adductor Magnus Function
Adduction and Flexion thigh - Adductor Part
Extension thigh - Hamstring part
Adductor Magnus Insertion
Linea Aspera
Gracilis Origin
Pubis
Gracilis Insertion
PES Anserinus
Gracilis Innervartio
Obturator
Gracilis Movement
Adduction and internal rotation leg
Femoral and Obturator Nerve Origins
L2-L4
Femoral Nerve enters thigh by
Under inguinal ligament
After passing under the inguinal ligament, the femoral nerve
Instantly splits into branches to the anterior thigh muscles, anterior cutaneous nerve of thigh and saphenous nerve
Saphenous nerve supplies
Cutaneous medial leg and foot
Obturator nerve enters thigh through
Obturator foramen
Obturator Nerve supplies…
Med thigh muscles and cutaneous
Femoral nerve supplies
Ant thigh muscles, ant thigh cut (via ant cut nerve thigh) medial leg and foot (via saphenous)
Superifical Veins Lower Limb
Small Saphenous = post leg
Great Saphenous = med leg
Femoral Triangle Order from Lat->Med
NAVL
Nerve Artery Vein Lumph
Femoral Triangle Superior Border
Inguinal Ligament
Femoral Triangle Medial Border
Adductor longus
Femoral Triangle Lateral Border
Sartorius
Femoral Triangle Floor
Iliacus, Psoas, Pectineus
Femoral Triangle Roof
Fascia Lata
Femoral Sheath contains
Femoral Aretry, Vein, Lymph (NOT NERVE)
Femoral Canal allows for
Expansion of Femoral Vein
Adductor Canal is
Pathway for femoral vessels from femoral triangle to popliteal fossa
Adductor Canal anaesthesia used for
Blocking most nerve sensation of lower limb as both femoral and obturator nerves in it
Which artery is used for catheters
Femoral artery as big
Femoral Hernia occurs where
Femoral Ring of femoral triangle