Term
Trapezius
Superior
Origin |
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Definition
| Occipital bone; spinous process of C1-C7 |
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Term
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Definition
| Aponeurosis at T1-T4 spinous processes |
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Term
Trapezius
Inferior
Origin |
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Definition
| Spinous process of T5-T12 |
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Term
Trapezius
Superior
Insertion |
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Definition
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Term
Trapezius
Middle
Insertion |
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Definition
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Term
Trapezius
Inferior
Insetion |
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Definition
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Term
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Definition
| Accessory nerve (CN XI); C3-C4 of cervical plexus |
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Term
Trapezius
Superior
Action
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Definition
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Term
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Definition
| Retraction of the scapula |
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Term
Trapezius
Inferior
Action |
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Definition
| Drepression of the scapula and inferior rotation of the glenohumeral joint |
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Term
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Definition
Spinous process of T7-T12 vertebrae;
thoracolumbar fascia,
inferior angle of the scapula,
9th to 12th ribs,
and iliac crest |
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Term
Latissimus Dorsi
Insertion |
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Definition
| Floor of the intertubercular groove of the humerus |
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Term
Latissimus Dorsi
Innervation |
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Definition
| Thoracodorsal nerve (C6-C8) |
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Term
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Definition
| pulls the shoulder into adduction and slightly into extension, balances the pectoral muscles on the anterior thorax, "coughing muscle" |
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Term
Latissimus Dorsi
Blood supply |
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Definition
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Term
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Definition
| spinous process of T1-T4 vertebrae |
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Term
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Definition
| medial border of the scapula below the scapular spine |
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Term
Rhomboid Major
Innervation |
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Definition
| Dorsal Scapular nerve (C4-C5) |
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Term
|
Definition
Steadies the scapula; draws scapula medially upward
Retract the scapula and inferiorly rotate is to depress the glenoid cavity |
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Term
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Definition
| spinous process of C6, C7 |
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Term
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Definition
| medial border of the scapula above the scapular spine |
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Term
Rhomboid Minor
Innervation |
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Definition
| Dorsal scapular nerve (C4-C5) |
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Term
|
Definition
| steadies the scapula; draws the scapula medially upward, retrate the scapula, inferiorly rotate the scapula to depress the glenoid cavity |
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Term
Rhomboid Muscles
Blood supply
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Definition
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Term
|
Definition
| Trasverse processes of C1-C4 |
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Term
Levator Scapulae
Insertion |
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Definition
| superior angle of the scapula |
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Term
Levator Scapulae
Innervation |
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Definition
| Dorsal scapular nerve (C4-C5) |
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Term
|
Definition
| elevate and rotate the scapula to depress the glenoid cavity |
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Term
Serratus Posterior Superior
Origin |
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Definition
| Nuchal ligament; C7-T3 spinous processes |
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Term
Serratus Posterior Superior
Insertion |
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Definition
| 2nd to 4th ribs (superior borders) |
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Term
Seraatus Posterior Superior
Innervation |
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Definition
| Spinal nerves T2-T5 (anterior rami) |
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Term
Serratus Posterior Superior
Action |
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Definition
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Term
Serratus Posterior Inferior
Origin |
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Definition
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Term
Serratus Posterior Inferior
Insertion |
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Definition
| 8th to 12th ribs (inferior borders, near angles) |
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Term
Serratus Posterior Inferior
Innervation |
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Definition
| Spinal nerves T9-T12 (anterior rami) |
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Term
Serratus Posterior Inferior
Action |
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Definition
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Term
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Definition
| Nuchal ligament; C3-C7 spinous processes |
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Term
Splenius Capitis
Insertion |
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Definition
| Occipital bone (lateral superior nuchal line; mastoid process) |
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Term
Splenius capitis
Innervation |
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Definition
| spinal nerves C1-C6 (posterior rami, lateral branches) |
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Term
|
Definition
Bilateral: extends cervical spine and head
Unilateral: flexes and rotates head to the same side |
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Term
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Definition
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Term
Splenius cervicus
Insertion |
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Definition
| C1-C2 transverse processes |
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Term
Splenius cervicus
Innervation |
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Definition
| spinal nerves C1-C6 (posterior rami, lateral branches) |
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Term
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Definition
Bilaterally: extends the cervical spine and head
Unilaterally: flexes and rotates head to the same side |
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Term
|
Definition
3rd to 7th ribs (cervicis)
7th to 12th ribs (thoracis)
sacrum; iliac crest; thoracolumbar fascia (lumborum) |
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Term
|
Definition
C4-C6 transverse processes (cervicis)
1st to 6th ribs (thoracis)
6th to 12th ribs; thoracolumbar fascia; upper lumbar vertebrae transverse processes (lumborum) |
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Term
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Definition
| Spinal nerve C8-L1 lateral branches of posterior rami |
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Term
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Definition
Bilateral: extends the spine
Unilateral: bends the spine laterally to the same side |
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Term
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Definition
T1 to T3 transverse processes; C4 to C7 tansverse processes and articular processes (capitis)
T1 to T6 transverse processes (cervicis)
Sacrum; iliac crest; lumbar vertebrae spinous processes; lower thoracic vertebrae transverse processes (thoracis) |
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Term
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Definition
mastoid process of temporal bone (capitis)
C2 to C5 transverse processes (cervicis)
2nd to 12th ribs; lumbar vertebrae costal processes; thoracic vertebrae transverse processes (thoracis) |
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Term
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Definition
| Spinal nerves C1-L5 lateral branches of posterior rami |
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Term
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Definition
Bilaterally: extends head and spine
Unilaterally: Bends spine laterally to same side, flexes and rotates head to same side |
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Term
|
Definition
C5 to T2 spinous processes (cervicis)
T10 to L3 spinous processes and lateral surfaces (thoracis) |
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Term
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Definition
C2 to C5 spinous processes (cervicis)
T2 to T8 spinous processes and lateral surfaces (thoracis) |
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Term
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Definition
| posterior rami of spinal nerves |
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Term
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Definition
Bilateral: extends cervial and thoracic spine
Unilateral: bends cervical and thoracic spine to same side |
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Term
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Definition
| T1 to T12 between the transverse and spinous processes of adjacent vertebrae |
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Term
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Definition
| T1 to T12 between transverse and spinous processes, skipping one vertebrae |
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Term
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Definition
| posterior rami of spinal nerves |
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Term
Multifidus
Origin and Insertion |
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Definition
| C2 to sacrum between transverse and spinous processes skipping 2 to 4 vertebrae |
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Term
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Definition
| posterior rami of spinal nerves |
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Term
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Definition
Bilateral: extends thoracic spine
Unilateral: rotates spine to opposite side |
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Term
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Definition
Bilateral: extends spine
Unilateral: flexes spine to same side, rotates to opposite side |
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Term
Semispinalis Capitis
Origin |
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Definition
| C4 to C7 transverse and articular processes |
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Term
Semispinalis Capitis
Insertion |
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Definition
| occipital bone between superior and inferior nuchal lines |
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Term
|
Definition
| posterior rami of spinal nerves |
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Term
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Definition
Bilateral: extends thoracic and cervical spine and head (stabilizes craniovertebral joints)
Unilateral: bends head, cervial and thoracic spines to same side, rotates to opposite side |
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Term
Semispinalis Cervicis
Origin |
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Definition
| T1 to T6 transverse processes |
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Term
Semispinalis Cervicis
Insertion |
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Definition
| C2 to C5 spinous processes |
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Term
Semispinalis Thoracis
Origin |
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Definition
| T6 to T12 transverse processes |
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Term
Semispinalis Thoracis
Insertion |
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Definition
| C6 to T4 spinous processes |
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