Back Flashcards
Serratus Posterior superior
Innervation:
2-5th intercostal nerves (Anterior Rami)
Action:
Proprioception for respiration
Serratus Posterior inferior
innervation: 9th-11th intercostal nerve (anterior rami)
Action: Proprioception for respiration
Splenius capitis
Splenius cervicis
Innervation: Posterior rami of spinal nerves
Action:
laterally flex neck and rotate head to side of active muscles
Extends head and neck together
Spinalis
Longissimus
Illiocostalis
Innervation: posterior rami of spinal nerves
Action:
Bilaterally- extends vertebral column
Unilaterally - flexes vertebral column
Rectus capitis posterior minor
Attachment: posterior tubercle of C1; occipital bone
Innervation: Suboccipital nerve
Action: Head posture
Obliquus capitis inferior
Attachment: Spinous process C2; transverse process of C1
Innervation: Suboccipital nerve
Action: Head posture
Rectus capitis posterior major
Attachment: spinous process C2; occipital bone
Innervation: Suboccipital nerve
Action: Head posture
Obliquus capitis superior
Attachment: Tranverse process of C1; occipital bone
Innervation: suboccipital nerve
Action: Head Posture
Muscles of Suboccipital Triangle
Rectus capitis posterior major/minor
Obliquus capitis inferior/superior
Muscles for Proprioception for respiration
Serratus posterior superior/Inferior
Muscles innervated by Posterior rami of spinal nerves
Splenius capitis/cervicis
Muscles innervated by posterior rami of spinal nerves
Spinalis
Longissimus
Iliocostalis
Muscles help with Head posture
Rectus capitis posterior major/minor
Obliquus capitis inferior/superior
Trapezius
Action: Superior portion- elevates; inferior portion-depresses; middle portion retracts scapula
Innervation: Spinal Accessory Nerve (CN XI)
Latissimus dorsi
Action: Extends, adducts and medially rotates shoulder joint
Innervation: Thoracodorsal nerve
Levator scapulae
Action: Elevated scapula
Innervation: dorsal scapular nerve
Rhomboid minor/major
Action: Retracts scapula and fix scapula to thoracic wall
Innervation: Dorsal scapular nerve
Deltoid
Action: Flexes, medially rotates shoulder; abducts shoulder joint; extends and laterally rotates shoulder
Innervation: Axillary nerve
Supraspinatus
Action: Abduction of shoulder, rotator cuff muscle
Innervation: suprascapular nerve
Infraspinaturs
Action: Laterally rotates shoulder joint, rotator cuff muscle
Innervation: suprascapular nerve
Teres Minor
Action: Laterally rotates shoulder cuff, rotator cuff muscle
Innervation: Axillary nerve
Teres major
Action: Adducts and medially rotates shoulder joint
Innervation: Inferior subscapular nerve
Subscapularis
Action: Medially rotates and adducts shoulder joint, rotator cuff muscle
Innervation: Superior and inferior subscapular nerves
