Muscular Anaotomy 4-1 Flashcards
Anterior tibialis - integrated function
Eccentricity decelerates plantarflexion and eversion, isometrically stabilizes the arch of the foot
Anterior tibialis - isolated function
Concentrically accelerates dorisflexion and inversion
Soleus - isolated function
Concentrically accelerates plantarflexion
Posterior tibialis isolated function
Concentrically accelerates plantarflexion and inversion of the foot
Posterior tibialis - integrated function
Eccentrically decelerates the Dorisflexion and eversion of the foot isometrically stabilizes the arch of the foot
Gastrocnemius- isolated function
Concentrically accelerates plantarflexion
Soleus - integrated function
Decelerates ankle dorisflexion isometrically stabilizes the foot and ankle complex
Gastrocnemius - integrated function
Decelerates ankle dorisflexion isometrically stabilizes the foot and ankle complex
Peroneus Longus - isolated function
Concentrically plantarflexes and everts the foot
Peroneus Longus - integrated function
Decelerates ankle dorisflexion, isometrically stabilizes the foot and ankle complex
Hamstring complex,
Bicep Femoris - long head
Isolated function
Concentrically accelerates knee flexion and hip extension, tibial external rotation
Hamstring complex,
Bicep Femoris - long head
Integrated function
Eccentrically decelerates knee extension
Eccentrically decelerates hip flexion
Eccentrically decelerates tibial internal rotation at mid-stance of the gait cycle , assists in eccentric deceleration of anterior pelvic rotation, assists in dynamic stabilization of the limbo-pelvic-hip complex
Hamstring complex,
Bicep Femoris - short head
Isolated function
Concentrically accelerates knee flexion and tibial external rotation
Hamstring complex,
Bicep Femoris - short head
Integrated function
Eccentrically decelerates knee extension, eccentrically decelerates tibial internal rotation at mid-stance of the gait cycle
Hamstring complex
Semimembranosus - isolated function
Concentrically accelerates knee flexion hip extension and tibial internal rotation
Hamstring complex
Semimembranosus - integrated function
Eccentrically decelerates knee extension, eccentrically decelerates hip flexion, eccentrically decelerates tibial external rotation, assists in eccentric deceleration of anterior pelvic rotation, assists in dynamic stabilization of the lumbo-pelvic-hip complex
Hamstring complex
Semitendinosus - isolated function
Concentrically accelerates knee flexion
Hip extension and tibial internal rotation
Hamstring complex
Semitendinosus - integrated function
Eccentrically decelerates knee extension
Eccentrically decelerates hip flexion
Eccentrically decelerates tibial external rotation
assists in eccentric deceleration of anterior pelvic rotation
assists in dynamic stabilization of the limbo-pelvic-hip complex
Quadriceps complex
Vastus Lateralis - isolated function
Concentrically accelerates knee extension
Quadriceps complex
Vastus Lateralis - Integrated function
Eccentrically decelerates knee flexion
Adduction and internal rotation at the heel strike, Isometrically stabilizes the knee
Quadriceps complex
Vastus Medialis - isolated function
Concentrically accelerates knee extension
Quadriceps complex
Vastus Medialis - integrated function
Eccentrically decelerates knee flexion, abduction and internal rotation,
Isometrically stabilizes the knee
Quadriceps complex
Vastus intermedius - isolated function
Concentrically accelerates knee extension
Quadriceps complex
Vastus intermedius - integrated function
Eccentrically decelerates knee flexion and internal rotation,
Isometrically stabilizes the knee
Quadriceps complex
Rectusfemoris Femoris - isolated function
Concentrically accelerates knee extension and hip flexion
Quadriceps complex
Rectus Femoris - integrated function
Eccentrically decelerates knee flexion adduction and internal rotation, isometrically stabilizes the knee, decelerates hip extension
Quadriceps complex
Articularis Genu - isolated function
Pulls the synovial membrane and capsule superiority during extension and avoid pinching durning extension
Quadriceps complex
Articularis Genu - integrated function
Eccentrically decelerates knee flexion and internal rotation
Isometrically stabilizes the knee
Adductor Complex
Adductor Longus - Isolated function
Concentrically accelerates hip adduction flexion and internal rotation
Adductor Complex
Adductor Longus - integrated function
Eccentrically decelerates hip abduction extension and external rotation isometrically stabilizes the limbo-pelvic-hip complex
Adductor Complex
Adductor Magnus - Isolated function
Concentrically accelerates hip adduction flexion and internal rotation
Adductor Complex
Adductor Magnus - Integrated function
Eccentrically decelerates hip abduction, extension and external rotation
Isometrically stabilizes the limbo-pelvic-hip complex
Adductor Complex
Adductor Magnus posterior fibers - Isolated function
Concentrically accelerates hip adduction, extension and external rotation
Adductor Complex
Adductor Magnus posterior fibers - Integrated function
Eccentrically decelerates hip abduction, flexion and internal rotation
Isometrically stabilizes the limbo-pelvic-hip complex
Adductor Complex
Adductor Brevis - Isolated function
Concentrically accelerates hip adduction flexion and internal rotation
Adductor Complex
Adductor Brevis - Integrated function
Eccentrically decelerates hip abduction, extension and external rotation
Isometrically stabilizes the limbo-pelvic-hip complex
Gracilis - isolated function
Concentrically accelerates hip adduction, flexion and internal rotation
Assist in tibial internal rotation
Gracilis - integrated function
Eccentrically decelerates hip abduction, extension and external rotation
Isometrically stabilizes the limbo-pelvic-hip complex
Pectineus - isolated function
Concentrically accelerates hip adduction, flexion and internal rotation
Pectineus - integrated function
Eccentrically decelerates hip abduction, extension and external rotation Works synergistically with gluteus medius, tensor fascia late and quadratus lumborum for frontal plane stabilization during stance phase
Hip Abductor Complex
Gluteus Medius - Anterior Fibers - isolated function
Concentrically accelerates hip abduction and internal rotation
Hip Abductor Complex
Gluteus Medius - Anterior Fibers - integrated function
Eccentrically decelerates hip adduction and external rotation,
Isometrically stabilizes the limbo-pelvic-hip complex
Hip Abductor Complex
Gluteus Medius - Posterior Fibers - isolated function
Concentrically accelerates hip abduction and external rotation
Hip Abductor Complex
Gluteus Medius - Posterior Fibers - integrated function
Eccentrically decelerates hip adduction and internal rotation
Isometrically stabilizes the lumbo-pelvic-hip complex
Gluteus Minimus - isolated function
Concentrically accelerates hip abduction and internal rotation
Gluteus Minimus - integrated function
Eccentrically decelerates frontal plane, hip adduction and internal rotation,
isometrically stabilizes the lumbo-pelvic-hip complex
Tensor Fascia Latae - isolated function
Concentrically accelerates hip flexion abduction and internal rotation
Tensor Fascia Latae - integrated function
Eccentrically decelerates hip extension adduction and external rotation isometrically stabilizes the lumbo-pelvic-hip complex
Gluteus Maximus - isolated function
Concentrically accelerates hip extension and external rotation
Gluteus Maximus - integrated function
Eccentrically decelerates hip flexion and internal rotation
Decelerates tibial internal rotation via the iliotibial band
Psoas isolated function
Concentrically accelerates hip flexion and external rotation
Psoas integrated function
Eccentrically decelerates hip extension
Assists in stabilization of the lumbar spine during functional movements
Sartorius - isolated function
Concentrically accelerates hip flexion,
External rotation and abduction,
concentrically accelerates knee flexion and internal rotation
Sartorius - integrated function
Eccentrically decelerates hip extension
And external rotation
Eccentrically decelerates knee extension and external rotation
Assists in stabilization of the lumbo-pelvic-hip complex and
tibio-femoral joint
Hip External Rotators
Pisiformis - isolated function
Concentrically accelerates hip external rotation abductionand extension
Hip External Rotators
Pisiformis - integrated function
Eccentrically decelerates hip internal rotation, adduction and flexion
Isometrically stabilizes the hip and sacroiliac joints
Obdurator Internus - isolated function
Concentrically accelerates hip external rotation and abduction
Obdurator Internus - integrated function
Eccentrically decelerates hip internal rotation and adduction isometrically stabilizes the hip
Obdurator Externus -isolated function
Concentrically accelerates hip external rotation
Obdurator Externus -integrated function
Eccentrically decelerates hip internal rotation
Isometrically stabilizes the hip
Gemellus Superior - isolated function
Concentrically accelerates hip external rotation
Gemellus Superior - integrated function
Eccentrically decelerates hip internal rotation
Isometrically stabilizes the hip
Gemellus Inferior -Isolated function
Concentrically accelerates hip external rotation
Gemellus Inferior -Integrated function
Eccentrically decelerates hip internal rotation
Isometrically stabilizes the hip
Quadratus Femoris - isolated function
Concentrically accelerates hip external rotation
Quadratus Femoris - integrated function
Eccentrically decelerates hip internal rotation
Isometrically stabilizes the hip
Rectus Abdominis - isolated function
Concentrically accelerates spinal flexion, lateral flexion, and rotation
Rectus Abdominis - integrated function
Eccentrically decelerates spinal extension, lateral flexion and rotation
Isometrically stabilizes the lumbo-pelvic-hip complex
External Oblique - Isolated function
Concentrically accelerates spinal flexion, lateral flexion and Contralateral rotation
External Oblique - Integrated function
Eccentrically decelerates spinal extension, lateral flexion and rotation Isometrically stabilizes the lumbo-pelvic-hip complex
Internal Oblique - isolated function
Concentrically accelerates spinal flexion (bilateral) lateral flexion and Ipsilateral rotation
Internal Oblique - integrated function
Eccentrically decelerates spinal extension, rotation and lateral flexion works synergistically with the transversus abdominis to provide rotational and translational stability to lumbar spine to its attachment to the thoracolumbar fascia
Transversus abdominis- isolated function
Increases intra-abdominal pressure supports the abdominal viscera
Transversus abdominis- integrated function
Works to preferentially stabilize the lumbar spine
Works synergistically with the internal oblique, multifidus and deep erector spinal to stabilize the lumbo-pelvic-hip complex
Diaphragm - isolated function
Concentrically pulls the central tendon inferiorly, increasing the volume in the thoracic cavity
Diaphragm - integrated function
Isometrically stabilizes the lumbo-pelvic-hip
Superficial Erector Spinae: Lliocostalis, Longissimus and Spinalis - isolated function
Concentrically accelerates spinal extension, rotation and lateral flexion
Superficial Erector Spinae: Lliocostalis, Longissimus and Spinalis - integrated function
Eccentrically decelerates spinal flexion, rotation and lateral flexion
Isometrically stabilizes the spine during functional movements
Quadratus Lumborum - isolated function
Spinal lateral flexion
Quadratus Lumborum - intergraded function
Works synergistically with the gluteus medius, tensor fascia and adductor complex as the primary frontal plane stabilization mechanism
Transversospinalis complex - isolated function
Concentrically produces spinal extension and lateral flexion
concentrically produces extension and Contralateral rotation of the head
Primarily proprioception and stabilization
Transversospinalis complex - integrated function
Eccentrically decelerates and lateral flexion of the spine eccentrically decelerates flexion and Contralateral rotation of the head
Rotatores - isolated function
Spinal extension and Contralateral rotation
Rotatores - integrated function
Eccentrically decelerates spinal flexion and rotation
Provides transverse plane intersegmental stability
Provides proprioception which enhances neuromuscular efficiency
Multifidus - isolated function
Concentrically accelerates spinal extension and contralateral rotation
Multifidus - integrated function
Eccentrically decelerates spinal flexion and rotation
Works synergistically with the transversus abdominis, internal oblique, and deep erector Spinae to stabilize the lumbo-sacral junction
Intertransversarii- isolated function
Concentrically accelerates spinal lateral flexion
Intertransversarii- integrated function
Eccentrically decelerates Contralateral segmental spinal lateral flexion provides inter-segmental stability in the frontal plane provides proprioception during functional movements
Interspinalis - isolated function
Concentrically accelerates intersegmental spinal extension
Interspinalis - integrated function
Eccentrically decelerates spinal flexion provides sagittal plane inter-segmental stability provides proprioception, which enhances spinal stabilization and neuromuscular control
Latissimus Dorsi - isolated function
Concentrically accelerates shoulder extension, adduction and internal rotation bilaterally creates spinal extension
Latissimus Dorsi - integrated function
Eccentrically decelerates shoulder flexion, abduction and external rotation eccentrically decelerates spinal flexion Isometrically stabilizes the lumbo-pelvic-hip complex
Serratus Anterior -isolated function
Concentrically accelerates scapular protraction
Serratus Anterior -integrated function
Eccentrically decelerates dynamic scapular retraction works synergistically with the upper and lower trapezius to provide optimal scapular mobility and stability during shoulder elevation Isometrically stabilizes to the scapula-thoracic joint
Rhomboids- isolated function
Concentrically produces scapular retraction and downward rotation
Rhomboids- integrated function
Eccentrically decelerates scapular protraction and upward rotation provides stability for the rotation cuff to work efficiently
Lower trapezius - isolated function
Concentrically accelerates scapular depression
Lower trapezius - integrated function
Eccentrically decelerates scapular elevation works synergistically with the upper trapezius and the serratus anterior to abduct the scapular during elevation Isometrically stabilizes the scapula
Middle Trapezius - isolated function
Concentrically accelerates scapular retraction
Middle Trapezius - integrated function
Eccentrically decelerates scapular elevation
During scapular abduction and upward rotation, the middle trapezius stabilizes the medial border of the scapula, thus creating a stable base for the prim movers to operate from
Upper Trapezius- isolated function
Concentrically accelerates cervical extension, lateral flexion and rotation
Upper Trapezius- integrated function
Eccentrically decelerates cervical flexion lateral flexion and rotation, works synergistically with the lower trapezius and the Serratus anterior in a force-couple to abduct and upwardly rotate the scapula during elevation provides dynamic stabilization to the cervical spine
Levator Scapulae -isolated function
Concentrically accelerates cervical extension, lateral flexion and Ipsilateral rotation when the scapula is anchored Assists in elevation and downward rotation of the scapula
Levator Scapulae -integrated function
Eccentrically decelerates cervical flexion and Contralateral cervical rotation and lateral flexion eccentrically decelerates scapular depression and upward rotation when the neck is stabilized isometrically stabilizes the cervical spine and scapula
Pectoralis Major - isolated function
Concentrically accelerates shoulder flexion (cavicular fibers) adduction (across the transversus plan) and internal rotation
Pectoralis Major - integrated function
Eccentrically decelerates shoulder extension, abduction ( across the transverse plane) and External rotation Dynamically stabilizes the shoulde girdle
Pectoralis Minor - isolated function
Concentrically protract the scapula
Pectoralis Minor - integrated function
Eccentrically decelerates scapular retraction dynamically stabilizes the shoulders girdle
Deltoid - isolated function
Anterior, Concentrically accelerates shoulder flexion and internal rotation
Middle, Concentrically accelerates shoulder abduction
Posterior, Concentrically accelerates shoulder extension and external rotation
Deltoid - integrated function
Anterior, eccentrically decelerates shoulder extension and external rotation , works synergistically with the pectorals during functional activities
Middle, eccentrically decelerates shoulder adduction, works as a force-couple with the Supraspinous during abduction
Posterior, eccentrically decelerates shoulder flexion and internal rotation
Rotator cuff - isolated function
Concentrically accelerates shoulder external ru
Rotator cuff - integrated function
Eccentrically decelerates shoulder internal rotation
Works synergistically with the other rotator cuff musculature to dynamically stabilizes the humeral head in the glenoid fossa during dynamic activity
Shoulder musculature-isolated function
Concentrically a shoulder external rotation
Shoulder musculature-integrated function
Eccentrically decelerates shoulder internal rotation
Works synergistically with the other rotator cuff musculature to dynamically stabilize the humeral head in the glenoid fossa during dynamic activity
Works synergistically to produce a dynamic caudal glide of the humeral head in the glenoid foss during elevation to prevent impingement
Works as a ligamentous-muscular protective reflex which enhances proprioception during dynamic functional activities
