Superficial and Deep Back

fazurele's version from 2015-07-27 04:57


Question Answer
Number of layers of the Superficial Group2 layers
Trapezius Muscle GroupSuperficial, Extrinsic, 1st layer
Trapezius OriginMedial nuchal line, external occipital protuberance, nuchal ligament, spinous processes of C7-T12
Trapezius InsertionLateral 1/3 of clavicle, acromion, spine of scapula
Trapezius InnervationCN XI (spinal accessory)
Trapezius Actionelevates, retracts, and rotates scapula upward/superiorly
Latissimus Dorsi Muscle groupSuperficial, Extrinsic, 1st layer
Latissimus Dorsi OriginSpinous processes of T7-12, thorocolumbar fascia, iliac crest, last 3-4 ribs
Latissimus Dorsi InsertionIntertubercular Groove of Humerus
Latissimus Dorsi InnervationThoracodorsal Nerve
Latissiumus Dorsi Actionextend/adducts/ medially rotates humerus
Levator Scapulae Muscle GroupSuperfiical, extrinsic, 2nd layer
Levator Scapulae origintransverse processes of C1-C4
Levator Scapulae Insertionmedial border of scapula
Levator Scapulae InnervationDorsal Scapular
Levator Scapulae ActionElevates scapula and rotates scapula downward/inferiorly
Rhamboid Major/Minor GroupSuperficial, 2nd layer, extrinsic
Rhamboid Major originspinous processes of T2-5
Rhamboid Minor originnuchal ligament, spinous processes of C7-T1
Rhamboid Major/Minor Insertionmedial border of scapula
Rhamboid Major/minor innervationDorsal Scapular
Rhamboid Major/minor actionretract scapula and rotates it downward/inferiorly; fix scapula to thoracic wall
Number of layers in Intermediate Groupone layer
Muscles of intermediate groupSerratus Posterior Superior/inferior
Serratus Posterior Superior OriginLigamentum Nuchae, spinous process of C7-T3
Serratus Posterior Superior InsertionSuperior Border of ribs 2-4
Serratus Posterior Superior Innervationintercostal nerves (T1-4/T2-5)
Serratus Posterior Superior ActionProprioception/elevates rib
Serratus Posterior Inferior OriginSpinous Process of T11-L2
Serratus Posterior Inferior InsertionInferior Border of ribs 8/9-12
Serratus Posterior Inferior InnervationIntercostal nerves (T9-12)
Serratus Posterior Inferior ActionProprioception/Depresses ribs
Deep Group has How many Layers3 layers; Superficial, Intermediate, Deep
Erector Spinae MusclesIliocostalis, Longissimus, Spinalis ( I Like Standing)
Transversospinalis musclesSemispinalis capitis, multifidus, rotatores
Splenius Capitis and Cervicis OriginNuchal Ligament, spinous processes of C7-T3/4
Splenius Capitis InsertionMastoid Process of temporal bone, lateral 1/3 of superior nuchal line
Splenius Cervicis Insertiontransverse processes of C1-3/4
Spenius Capitis/Cervicis Innervationposterior rami of spinal nerves
Splenius Capitis/Cervicis Actionalone; lateral flexion of neck, rotate head to side of active muscles; together extension of head and neck
Erector Spinaearises by a broad tendon from posterior part of iliac crest, posterior surface of sacrum, sacroiliac ligaments, sacral and inferior lumbar spinous processes an supraspinous ligament
Iliocostalis insertionlumborum, thoracis, cervicis
longissimus insertionthoracics cervicis , capitis
spinalis insertionthoracis, cervicis, capitis
erector Spinae Innervationposterior rami of spinal nerves
Erector Spinae Actionbilaterally, extend vertebral column and head, as back is flexed, control movement by gradually lengthenng the fibers. Unilaterally, laterally flex vertebral column
Sprainonly ligamentous tissue is involved
strainstretching or microscopic tearing of muscle fibers occur
Seminspinalis Capitis, Multifidus, Rotatores Functionhelp maintain posture
Nerves of the BackCN XI spinal accessory nerve, Ventral Rami, Dorsal rami
Suboccipital Triangle MusclesRectus Capitis Major, Rectus Capitis Minor, Superior Oblique, Inferior Oblique
Which of the Triangle muscles doesn't make-up a borderRectus Capitis Minor
Rectus Capitis Posterior Major OriginSpinous process of C2
Rectus Capitis Posterior Major InsertionLateral Part of inferior Nuchal line
Rectus Capitis Posterior Major innervationsuboccipital
Rectus Capitis Posterior Major Actionextends neck and rotates to same side
Rectus Capitis Posterior Minor OriginPosterior Tubercle of posterior arch C1
Rectus Capitis Posterior Minor Insertionmedial part of inferior nuchal line
Rectus Capitis Posterior Minor InnervationSuboccipita
Rectus Capitis Posterior Minor ActionExtension of neck
Obliques Capitis Inferior OriginPosterior tubercle of posterior arch of C2
Obliques Capitis Infereior insertiontransverse process of C1
Obliques Capitis Inferior InnervationSuboccipital
Obliques Capitis Inferior ActionRotates atlas to turn face to same side
Obliques Capitis Superior OriginTransverse process of C1
Obliques Capitis Superior InsertionOccipital bone
Obliques Capitis superior Innervationsuboccipital
Obliques Capitis Superior Actionextension of neck, lateral flexion
Name the BordersSuperomedial, Superolateral, Inferolateral, Floor, Roof
Name the blood supply of the TriangleVertebral Artery
Name the Nerve of the TriangleSuboccipital Nerve (C1)
Superomedial borderRectus Capitis Posterior Major
Superolateral borderObliques capitis superior
Inferolateral BorderObliques capitis Inferior
Floorposterior Atlanto occipital membrane, posterior arch of C1
RoofSemispinalis Capitis