Muscles of Thigh and Femoral Triangle Flashcards
THIGH
Surrounded by Fascia lata
Strengthened Iliotibial Tract Laterally
- Tract runs from Ilium to Lateral Tibial Condyle
ANTERIOR COMPARTMENT
~ Quads
MEDIAL COMPARTMENT
~ Adductors
POSTERIOR COMPARTMENT
~ Hamstrings
ILIOTIBIAL TRACT
Thickening of Fascia Lata Laterally
Iliac Crest Tuberculum to Lateral Condyle Tibia
Insertion of muscles:
- Gluteus Maximus Posteriorly
- Tensor Fascia Latae Anteriorly
TENSOR FASCIAE LATAE (Origin)
Lateral aspect Ilium
- Posterior to Anterior Superior Iliac Spine (ASIS)
TENSOR FASCIAE LATAE (Insertion)
Iliotibial Tract
TENSOR FASCIAE LATAE (Action)
Stabilize knee joint when extended
TENSOR FASCIAE LATAE (Innervation)
SUPERIOR Gluteal Nerve (L4-S1)
BICEPS FEMORIS (Origin)
LONG head
- Inferomedial surface Superior Surface Ischial Tuberosity
SHORT head
- Lateral lip Linea Aspera femur
BICEPS FEMORIS (Insertion)
Lateral surface head Fibular
BICEPS FEMORIS (Action)
Extension hip joint
Lateral Rotation hip joint
Flexion knee joint
BICEPS FEMORIS (Innervation)
Sciatic Nerve (L4-S3)
~ LONG head (Tibial division)
~ SHORT head (Common Fibular division)
SEMITENDINOSUS (Origin)
Inferomedial surface Superior surface Ischial Tuberosity
(Same as Biceps femoris)
SEMITENDINOSUS (Insertion)
Medial surface Proximal end Tibia
SEMITENDINOSUS (Action)
Extension hip joint
Flexion knee joint
SEMITENDINOSUS (Innervation)
Tibial Division of Sciatic Nerve (L4-S3)
SEMIMEMBRANOSUS (Origin)
Superolateral impression Ischial Tuberosity
SEMIMEMBRANOSUS (Insertion)
Groove and Adjacent bone
- Medial and Posterior surface Medial condyle Tibia
SEMIMEMBERANOSUS (Action)
Extension hip joint
Flexion knee joint
SEMIMEMBERANOSUS (Innervation)
Tibial Division of Sciatic Nerve (L4-S3)
SCIATIC NERVE (L4-S4)
COMMON FIBULAR Division
- Inferior /Superior Gluteal Nerve
- Nerve to piriformis
- Perforating Cutaneous Nerve
TIBIAL Division
Nerve to Quadratus Femoris
Nerve to Obturator Internus
Pudendal Nerve
ILIOPSOAS
Psoas Major and Iliacus
PECTINEUS (Origin)
Superior Pubic Ramus (Pectineal Line)
PECTINEUS (Insertion)
Posterior aspect Femur, Inferior to Lesser Trochanter
PECTINEUS (Action)
Adduction
Flexion
PECTINEUS (Innervation)
Femoral Nerve (L2-L4)
SARTORIUS (Origin)
(Longest muscle in body)
Anterior Superior Iliac Spine
SARTORIUS (Insertion)
Upper Medial surface Tibia