Functional Anatomy - Back (Detailed) Flashcards
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
ILIOCOSTALIS: LUMBORUM DIVISION
ORIGIN
Superficial erector spinae common origin
INSERTION
Inferior border of ribs 7–12
Concentric Action
Spinal extension, rotation, and lateral flexion
Eccentric Action
Spinal flexion, rotation, and lateral flexion
Isometric Action
Stabilizes the spine during functional movements
INNERVATION
Dorsal rami of thoracic and lumbar nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
ILIOCOSTALIS: THORACIS DIVISION
ORIGIN Superficial erector spinae common origin
INSERTION
Superior border of ribs 1–6
Concentric Action
Spinal extension, rotation, and lateral flexion
Eccentric Action
Spinal flexion, rotation, and lateral flexion
Isometric Action
Stabilizes the spine during functional movements
INNERVATION
Dorsal ram
i of thoracic nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
ILIOCOSTALIS: CERVICUS DIVISION
ORIGIN
Superficial erector spinae common origin
INSERTION
Transverse process of C4–C6
Concentric Action
Spinal extension, rotation, and lateral flexion
Eccentric Action
Spinal flexion, rotation, and lateral flexion
Isometric Action
Stabilizes the spine during functional movements
INNERVATION
Dorsal rami of thoracic nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
LONGISSIMUS: THORACIS DIVISION
ORIGIN
Superficial erector spinae common origin
INSERTION
Transverse process T1–T12; Ribs 2–12
Concentric Action
Spinal extension, rotation, and lateral flexion
Eccentric Action
Spinal flexion, rotation, and lateral flexion
Isometric Action
Stabilizes the spine during functional movements
INNERVATION
Dorsal rami of thoracic and lumbar nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
LONGISSIMUS: CERVICUS DIVISION
ORIGIN
Superficial erector spinae common origin
INSERTION
Transverse process of C6–C2
Concentric Action
Spinal extension, rotation, and lateral flexion
Eccentric Action
Spinal flexion, rotation, and lateral flexion
Isometric Action
Stabilizes the spine during functional movements
INNERVATION
Dorsal rami of cervical nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
LONGISSIMUS: CAPITIS DIVISION
ORIGIN
Superficial erector spinae common origin
INSERTION
Mastoid process of the skull
Concentric Action
Spinal extension, rotation, and lateral flexion
Eccentric Action
Spinal flexion, rotation, and lateral flexion
Isometric Action
Stabilizes the spine during functional movements
INNERVATION
Dorsal rami of cervical nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
SPINALIS: THORACIS DIVISION
ORIGIN
Superficial erector spinae common origin
INSERTION
Spinous process of T7–T4
Concentric Action
Spinal extension, rotation, and lateral flexion
Eccentric Action
Spinal flexion, rotation, and lateral flexion
Isometric Action
Stabilizes the spine during functional movements
INNERVATION
Dorsal rami of thoracic nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
SPINALIS: CERVICUS DIVISION
ORIGIN
Superficial erector spinae common origin
INSERTION
Spinous process of C3–C2
Concentric Action
Spinal extension, rotation, and lateral flexion
Eccentric Action
Spinal flexion, rotation, and lateral flexion
Isometric Action
Stabilizes the spine during functional movements
INNERVATION
Dorsal rami of cervical nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
SPINALIS: CAPITIS DIVISION
ORIGIN
Superficial erector spinae common origin
INSERTION
Between the superior and inferior nuchal lines on occipital bone of the skull
Concentric Action
Spinal extension, rotation, and lateral flexion
Eccentric Action
Spinal flexion, rotation, and lateral flexion
Isometric Action
Stabilizes the spine during functional movements
INNERVATION
Dorsal rami of cervical nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
QUADRATUS LUMBORUM
ORIGIN
Iliac crest of the pelvis
INSERTION
12th rib, transverse processes L2–L5
Concentric Action
Spinal lateral flexion
Eccentric Action
Decelerates contralateral lateral spinal flexion
Isometric Action
Stabilizes the lumbo–pelvic–hip complex
INNERVATION
Spinal nerves (T12–L3)
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
TRANSVERSOSPINALIS: THORACIS DIVISION
ORIGIN
Transverse process T12–T7
INSERTION
Spinous process T4–C6
Concentric Action
Produces spinal extension and lateral flexion; extension and contralateral rotation of the head
Eccentric Action
Decelerates lateral flexion of the spine; flexion and contralateral rotation of the head
Isometric Action
Stabilizes the spine
INNERVATION
Dorsal rami C1–T6 spinal nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
TRANSVERSOSPINALIS: CERVICIS DIVISION
ORIGIN
Transverse process T6–C4
INSERTION
Spinous process C5–C2
Concentric Action
Produces spinal extension and lateral flexion; extension and contralateral rotation of the head
Eccentric Action
Decelerates lateral flexion of the spine; flexion and contralateral rotation of the head
Isometric Action
Stabilizes the spine
INNERVATION
Dorsal rami C1–T6 spinal nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
TRANSVERSOSPINALIS: CAPITUS DIVISION
ORIGIN
Transverse process T6–C7
INSERTION
Nuchal line of occipital bone of the skull
Concentric Action
Produces spinal extension and lateral flexion; extension and contralateral
rotation of the head
Eccentric Action
Decelerates lateral flexion of the spine; flexion and contralateral rotation of the head
Isometric Action
Stabilizes the spine
INNERVATION
Dorsal rami C1–T6 spinal nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
MULTIFIDUS
ORIGIN
Posterior aspect of the sacrum; Processes of the lumbar, thoracic, and cervical spine
INSERTION
Spinous processes 1–4 segments above the origin
Concentric Action
Spinal extension and contralateral rotation
Eccentric Action
Spinal flexion and rotation
Isometric Action
Stabilizes the spine
INNERVATION
Corresponding spinal nerves
State the origin, insertion, isometric, concentric and eccentric functions for the muscle in yellow:
LATISSIMUS DORSI
ORIGIN
Spinous processes of T7–T12; Iliac crest of the pelvis; Thoracolumbar fascia; Ribs 9–12
INSERTION
Inferior angle of the scapula; Intertubecular groove of the humerus
Concentric Action
Shoulder extension, adduction, and internal rotation
Eccentric Action
Shoulder flexion, abduction, external rotation, and spinal flexion
Isometric Action
Stabilizes the lumbo–pelvic–hip complex and shoulder
INNERVATION
Thoracodorsal nerve (C6–C8)
