Lecture 2: Anterior Medial Thigh Flashcards
Where does the Great Saphenous Vein travel?
Starts at the medial side of dorsal venous arch of foot
Travels medial side of leg and thigh
Terminates in femoral vein on anterior thigh in saphenous opening
What veins are tributaries for Great Saphenous Vein?
External Pudendal Vein
Superficial Circumflex Iliac Vein
Superficial Epigastric Vein
Where are the two groups of Superficial Inguinal Lymph Nodes located in the Femoral Triangle?
Superior Horizontal Group: Along the Inguinal Ligament
-drains anterior inferior abdominal wall
Inferior Vertical Group: On either side of Great Saphenous Vein
-drains superficial tissue of lower extremity
The Superficial Lymph Node does not drain what superficial lower extremity structure?
What structure does drain it?
Dorsolateral foot and Posterior Calf
Popliteal Lymph Nodes
What does the Lateral Femoral Cutaneous Nerve innervate?
What spinal roots contribute to it?
Sensory anterior and lateral thigh
L2 and L3
What does the Femoral Branch of Genitofemoral Nerve innervate?
What spinal roots contribute to it?
Sensory: Scrotum/Labia Majora/Medial Thigh
Motor: Cremaster Muscle
L1 and L2
What does the Obturator Nerve innervate?
What spinal roots contribute to it?
Sensory: Medial Thigh
Motor: Obturator Externus, Adductor Longus, Adductor Brevis, Gracilis, Pectineus, Adductor Magnus Muscles
L2-L4
What is Meralgia Paresthetica?
Which nerve is impinged?
Tingling and numbness of lateral thigh
Impingment of Lateral Femoral Cutaneous Nerve
What is the Fascia Lata?
Deep connective tissue that surrounds thigh
- mostly horizontal fibers (except around IT band)
- Attaches to Gerdy’s tubercle*
What muscular compartments are found in Fascia Lata?
Anterior and Medial
What is the Iliotibial tract?
Thickened part of the Fascia Lata on the lateral side
- Vertical Fibers
- Aponeurosis of gluteus maximus and Tensor Fascia Lata
- Inserts into Gerdys tubercle*
What septum is contiguous with the Iliotibial Tract?
The Lateral Intermuscular Septum
Which compartment is stronger, the Anterior Thigh, or the Posterior Thigh?
Anterior Thigh
What muscles flex the hip?
Sartorius Muscle
Iliopsoas (Iliacus and Psoas Major) Muscle
Pectineus Muscle
Which muscles extend the knee?
Quadriceps Femoris:
Rectus Femoris
Vastus Lateralis
Vastus Intermedius
Vastus Medialis
Psoas Major Muscle
What are its attachments?
Origin: Transverse process of lumbar vertebrae and vertebral bodies of T12-L5
Insertion: Lesser Trochanter of Femur
Psoas Major Muscle
What are its action?
- Flex thigh at hip and trunk
- Stabilize hip joint
- Flexes vertebral column
Psoas Major Muscle
What is the innervation and blod supply?
Innervation: L1-L3 Ventral Rami
Blood Supply: Iliolumbar Artery
Iliacus Muscle
What are its attachments?
Origin: Superior Iliac Fossa
Insertion: Lesser Trochanter of Femur
Iliacus Muscle
What are its actions?
- Flexes thigh
- Stabilizes Acetabulofemoral joint
Iliacus Muscle
What is its innervation and blood supply?
Innervation: Femoral Nerve
Blood Supply: Medial Circumflex Femoral Artery
Sartorius Muscle
What are its attachments?
Origin: ASIS
Insertion: Pes Anserinus (proximal end of tibia)
Sartorius Muscle
What are its actions?
- Flex the hip
- Abduct Hip
- Laterally Rotate Thigh
- Flex the leg at the knee
* Think of Captain Morgan Pose*
Sartorius Muscle
What is its innervation and blood supply?
Innervation: Femoral Nerve
Blood Supply: Profunda Femoris Artery and Saphenous Branch of Descending Genicular Artery
Rectus Femoris Muscle
What are its attachments?
Origin: AIIS
Insertion: Tibial Tuberosity via Patellar Ligament
Rectus Femoris Muscle
What is its action?
- Extend leg at the knee p**owerfully
- Helps iliopsoas flex thigh
- Steadies hip joint
Rectus Femoris Muscle
What is its innervation and blood supply?
Innervation: Femoral Nerve
Blood Supply: Lateral Circumflex Femoral Artery
Vastus Lateralis Muscle
What are its attachments?
Origin: Greater Trochanter and Lateral Lip of Linea Aspera
Insertion: Tibial Tuberosity via Patellar Ligament
Vastus Lateralis Muscle
What is its action?
Extend the leg at knee joint
Vastus Lateralis Muscle
What is its innervation and blood supply?
Innervation: Femoral Nerve
Blood Supply: Lateral Circumflex Femoral Artery
Vastus Medialis Muscle
What are its attachments?
Origin: Intertrochanteric Line and Medial Lip of Linea Aspera
Insertion: Tibial Tuberosity via Patellar Ligament
Vastus Medialis Muscle
What is its action?
Extend the leg at knee joint
Vastus Medialis Muscle
What is its innervation and blood supply?
Innervation: Femoral Nerve
Blood Supply: Femoral Artery, Deep Femoral Artery, Superior Medial Genicular Branch of Popliteal Arteryd