Exam 3 Muscles Flashcards
Name: Psoas Major
Origin: Transverse process of T12-L5
Insertion: Lesser trochanter
Action: Hip flexion, adduction and external rotation
Name: Iliacus
Origin:Iliac fossa and sacrum
Insertion: Lesser trochanter
Action: Hip Flexion, adduction and external rotation
Name: Sartorius
Origin: Anterior Superior Iliac Spine
Insertion: Medial Proximal Tibia
Action: Hip: Flexion and abduction
Knee: Flexion
Name: Gluteus Maximus
Origin: Sacrum, Coccyx and Posterior Lateral Ilium
Insertion: Geater Trochanter
Action: Hip Extension and External Rotation
Assisting: Lower Fibers: Adduction
Upper Fibers: Abduction
Name: Gluteus Medius
Origin: Posterior Lateral Ilium
Insertion: Greater Trochanter
Action: Abduction
Name: Gluteus Minimus
Origin: Posterior Lateral Ilium
Insertion: Greater Trochanter
Action: Abduction and Hip Flexion
Name: Tensor Fascia Latae
Origin: Anterior Iliac Crest
Insertion: Lateral Tibia by way of IT Band
Action: Abduction and Hip Flexion
Name: Adductor Longus
Origin: Pubic Crest
Insertion: Linea Aspera
Action: Adduction
Assists with Hip Flexion
Name: Adductor Magnus
Origin: Ischial Tuberosity and Pubic Crest
Insertion: Linea Aspera and Medial Condyloid Ridge
Action: Adduction
Assists with Hip Flexion and External Rotation
Name: Adductor Brevis
Origin: Ischial Tiberosity and Inferior Pubic Crest
Insertion: Linea Aspera
Action: Adduction
Assists with Flexion and External Rotation
Name: Gracilis
Origin: Inferior Pubic Ramus
Insertion: Medial Proximal Tibia
Action: Hip: Adduction, Weak Hip Flexor and Internal Rotator
Knee: Weak Knee Flexor
Name: Rectus Femoris
Origin: Anterior Inferior Iliac Spine
Insertion: Tibial Tuberosity by way of Patellar Tendon
Action: Knee Extension and Hip Flexion
Name: Vastus Lateralis
Origin: Linea Aspera and Proximal Anterior Femur
Insertion: Tibial Tuberosity by way of Patellar Tendon
Action: Knee Extension
Name: Vastus Medialis
Origin: Linea Aspera
Insertion: Tibial Tuberosity by way of Patellar Tendon
Action: Knee Extension
Name: Vastus Intermedius
Origin: Proximal Anterior Femur
Insertion: Tibial Tuberosity by way of Patellar Tendon
Action: Knee Extension
Name: Bicep Femoris
Origin: Short Head: Linea Aspera
Long Head: Ischial Tuberosity
Insertion: Fibula Head and Lateral Tibial Condyle
Action: Long Head: Hip Extension and Knee Flexion
Short Head: Knee Flexion
Name: Semitendinosous
Origin: Ischial Tuberosity
Insertion: Medial Proximal Tibia
Action: Hip Extension, Internal rotation at Hip, Knee Flexion
Name: Semimembranosus
Origin: Ischial Tuberosity
Insertion: Posterior Medial Condyle of Tibia
Action: Hip Extension, Internal Rotation at hip, and Knee Flexion
Name: Tibialis Anterior
Origin: Lateral Tibial Epicondyle
Insertion: Base of Metatarsal I and Cunieform I
Action: Dorsiflexion and Inversion
Name: Extensor Digitorum Longus
Origin: Lateral Tibial Epicondyle and Head of Fibula
Insertion: Middle and Distal Phalanges of digits II - V
Action: Ankle dorsiflexion and Extends digits II - V
Name: Extensor Hallucis Longus
Origin: Middle Third of Fibula
Insertion: Base of Distal phalanx of the Hallux
Action: Ankle Dorsiflexor and Hallux Extension
Name: Peroneus Tertius
Origin: Distal Third of Fibula
Insertion: Base of Metatarsal V
Action: Ankle Eversion, assists in Dorsiflexion
Name: Gastrocnemius
Origin: Femur
Insertion: Calcaneus by way of Achilles Tendon
Action: Knee Flexion and Ankle Plantar Flexion
Name: Soleus
Origin: Tibia and Fibula
Insertion: Calcaneus by way of the Achilles Tendon
Action: Plantar Flexion
Name: Plantaris
Origin: Lateral Supracondylar Line of Femur and Oblique Popliteal Ligament
Insertion: Calcaneus
Action: Weak Knee Flexor and Ankle Plantar Flexor
Name: Flexor Digitorum Longus
Origin: Posterior Tibia
Insertion: Middle and Distal Phalanges of Digits II - V
Action: Plantar Flexion and Ankle Inversion, Flex Digits II - V
Name: Flexor Hallucis Longus
Origin: Interosseous Membrane and Middle Fibula
Insertion: Base of Distal Phalanyx of Hallux
Action: Plantar Flexion and Ankle Inversion and Hallux Flexion
