Hip Muscles Flashcards
ADDUCTOR LONGUS
ORIGIN
Anterior surface of the inferior pubic ramus of the pelvis
INSERTION
Linea aspera of the femur
ISOLATED FUNCTION
Concentric Action
Accelerates hip adduction, flexion, and internal rotation
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip abduction, extension, and external rotation
Isometric Action
Stabilizes the lumbo-pelvic-hip complex
INNERVATION
Obturator nerve
ADDUCTOR MAGNUS, ANTERIOR FIBERS
ORIGIN
Ischial ramus of the pelvis
INSERTION
Linea aspera of the femur
ISOLATED FUNCTION
Concentric Action
Accelerates hip adduction, flexion, and internal rotation
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip abduction, extension, and external rotation
Isometric Action
Stabilizes the lumbo-pelvic-hip complex
INNERVATION
Obturator nerve
ADDUCTOR MAGNUS, POSTERIOR FIBERS
ORIGIN
Ischial tuberosity of the pelvis
INSERTION
Adductor tubercle on femur
ISOLATED FUNCTION
Concentric Action
Accelerates hip adduction, extension, and external rotation
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip abduction, flexion, and internal rotation
Isometric Action
Stabilizes the lumbo-pelvic-hip complex
INNERVATION
Sciatic nerve
ADDUCTOR BREVIS
ORIGIN
Anterior surface of the inferior pubic ramus of the pelvis
INSERTION
Proximal one-third of the linea aspera of the femur
ISOLATED FUNCTION
Concentric Action
Accelerates hip adduction, flexion, and internal rotation
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip abduction, extension, and external rotation
Isometric Action
Stabilizes the lumbo-pelvic-hip complex
INNERVATION
Obturator nerve
GRACILIS
ORIGIN
Anterior aspect of lower body of pubis
INSERTION
Proximal medial surface of the tibia (pes anserine)
ISOLATED FUNCTION
Concentric Action
Accelerates hip adduction, flexion, and internal rotation and assists in tibial internal rotation
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip abduction, extension, and external rotation
Isometric Action
Stabilizes the lumbo-pelvic-hip complex and knee
INNERVATION
Obturator nerve
PECTINEUS
ORIGIN
Pectineal line on the superior pubic ramus of the pelvis
INSERTION
Pectineal line on the posterior surface of the upper femur
ISOLATED FUNCTION
Concentric Action
Accelerates hip adduction, flexion, and internal rotation
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip abduction, extension, and external rotation
Isometric Action
Stabilizes the lumbo-pelvic-hip complex
INNERVATION
Obturator nerve
GLUTEUS MEDIUS, ANTERIOR FIBERS
ORIGIN
Outer surface of the ilium
INSERTION
Lateral surface of the greater trochanter of the femur
ISOLATED FUNCTION
Concentric Action
Accelerates hip abduction and internal rotation
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip adduction and external rotation
Isometric Action
Dynamically stabilizes the lumbo-pelvic-hip complex
INNERVATION
Superior gluteal nerve
GLUTEUS MEDIUS, POSTERIOR FIBERS
ORIGIN
Outer surface of the ilium
INSERTION
Lateral surface of the greater trochanter of the femur
ISOLATED FUNCTION
Concentric Action
Accelerates hip abduction and external rotation
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip adduction and internal rotation
Isometric Action
Stabilizes the lumbo-pelvic-hip complex
INNERVATION
Superior gluteal nerve
GLUTEUS MINIMUS
ORIGIN
Ilium between the anterior and inferior gluteal line
INSERTION
Greater trochanter of the femur
ISOLATED FUNCTION
Concentric Action
Accelerates hip abduction, flexion, and internal rotation
INTEGRATED FUNCTION
Eccentric Action
Decelerates frontal plane hip adduction, extension, and external rotation
Isometric Action
Stabilizes the lumbo-pelvic-hip complex
INNERVATION
Superior gluteal nerve
TENSOR FASCIA LATAE
ORIGIN
Outer surface of the iliac crest just posterior to the anterior superior iliac spine of the pelvis
INSERTION
Proximal one-third of the iliotibial band
ISOLATED FUNCTION
Concentric Action
Accelerates hip flexion, abduction, and internal rotation
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip extension, adduction, and external rotation
Isometric Action
Stabilizes the lumbo-pelvic-hip complex
INNERVATION
Superior gluteal nerve
GLUTEUS MAXIMUS
ORIGIN
Outer ilium, posterior side of sacrum and coccyx, and part of the sacrotuberous and posterior sacroiliac ligament
INSERTION
Gluteal tuberosity of the femur and iliotibial tract
ISOLATED FUNCTION
Concentric Action
Accelerates hip extension and external rotation INTEGRATED FUNCTION
Eccentric Action
Decelerates hip flexion, internal rotation, and tibial internal rotation via the iliotibial band
Isometric Action
Stabilizes the lumbo-pelvic-hip complex
INNERVATION
Inferior gluteal nerve
PSOAS MAJOR
ORIGIN
Transverse processes and lateral bodies of the last thoracic and all lumbar vertebrae, including intervertebral discs
INSERTION
Lesser trochanter of the femur as the iliopsoas tendon
ISOLATED FUNCTION
Concentric Action
Accelerates hip flexion and external rotation and extends and rotates lumbar spine
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip internal rotation and decelerates hip extension
Isometric Action
Stabilizes the lumbo-pelvic-hip complex
INNERVATION
Spinal nerve branches of L1–L3
ILIACUS
ORIGIN
Iliac fossa
INSERTION
Lesser trochanter of the femur as the iliopsoas tendon
ISOLATED FUNCTION
Concentric Action
Accelerates hip flexion and external rotation and extends and rotates lumbar spine
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip internal rotation and decelerates hip extension
Isometric Action
Stabilizes the lumbo-pelvic-hip complex
INNERVATION
Spinal nerve branches of L2–L4
SARTORIUS
ORIGIN
Anterior superior iliac spine of the pelvis
INSERTION
Proximal medial surface of the tibia
ISOLATED FUNCTION
Concentric Action
Accelerates hip flexion, external rotation, and abduction and accelerates knee flexion and internal rotation
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip extension and internal rotation and knee extension and external rotation
Isometric Action
Stabilizes the lumbo-pelvic-hip complex and knee
INNERVATION
Femoral nerve
PIRIFORMIS
ORIGIN
Anterior surface of the sacrum
INSERTION
The greater trochanter of the femur
ISOLATED FUNCTION
Concentric Action
Accelerates hip external rotation, abduction, and extension
INTEGRATED FUNCTION
Eccentric Action
Decelerates hip internal rotation, adduction, and flexion
Isometric Action
Stabilizes the hip and sacroiliac joints
INNERVATION
Sciatic nerve
