Term
Superior nuchal line;
External occipital protuberance;
Ligamentum nuchae;
Spinous process of C7 |
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Definition
| Where does the upper trapezius muscle originate? |
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Term
Lateral 1/3 of the clavicle;
The acromion |
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Definition
| Where does the upper trapezius muscle insert? |
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Term
| Elevation, upward rotation, and adduction of the scapula |
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Definition
| What action does contraction of the upper trapezius muscle produce? |
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Term
| Spinous processes of T1 to T5 |
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Definition
| Where does the middle trapezius originate muscle? |
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Term
| Medial margin of the acromion and the spine of the scapula |
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Definition
| Where does the middle trapezius muscle insert? |
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Term
| Adduction and some upward rotation of the scapula |
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Definition
| What action does contraction of the middle trapezius muscle produce? |
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Term
| Spinous processes of T6 to T12 |
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Definition
| Where does the lower trapezius muscle originate? |
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Term
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Definition
| Where does the lower trapezius muscle insert? |
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Term
| Depression, upward rotation, and adduction of the scapula |
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Definition
| What action does contraction of the lower trapezius muscle produce? |
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Term
Movement: The spinal accessory nerve [CN XI]
Proprioception: Branches of the cervical plexus (C3 and C4) |
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Definition
| What innervates the trapezius muscle? |
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Term
The spinous processes of T7 to T12;
Thoracolumbar fascia;
Posterior iliac crest;
The lower 3-4 ribs |
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Definition
| Where does the latissimus dorsi muscle originate? |
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Term
| The floor of the intertubercular groove of the humerus |
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Definition
| Where does the latissimus dorsi muscle insert? |
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Term
Powerful adduction, extension, and medial rotation of the arm
("The butt-scratch muscle") |
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Definition
| What action does contraction of the latissimus dorsi muscle produce? |
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Term
| The thoracodorsal nerve from the brachial plexus (C6, C7, and C8) |
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Definition
| What innervates the latissimus dorsi muscle? |
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Term
| The transverse processes of C1 to C4 |
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Definition
| Where does the levator scapulae muscle originate? |
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Term
| The medial border of the scapula between the superior angle and the root of the spine |
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Definition
| Where does the levator scapulae muscle insert? |
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Term
| Elevation and downward rotation of the scapula |
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Definition
| What action does contraction of the levator scapulae muscle produce? |
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Term
Branches from the cervical plexus C3 and C4 and
The dorsal scapular nerve (C4 and C5) |
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Definition
| What innervates the levator scapulae muscle? |
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Term
| The ligamentum nuchae and spinous processes of C7 and T1 |
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Definition
| Where does the rhomboideus minor muscle originate? |
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Term
| The medial border of the scapula at the root of the spine |
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Definition
| Where does the rhomboideus minor muscle insert? |
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Term
| The upper four to five thoracic spines |
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Definition
| Where does the rhomboideus major muscle originate? |
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Term
| The medial border of the scapula between the spine and inferior angle |
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Definition
| Where does the rhomboideus major muscle insert? |
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Term
Adduction, elevation, and rotation of the scapula;
They assist the serratus anterior in stabilizing the scapula against the thorax |
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Definition
| What action does contraction of the rhomboideus major and minor muscles produce? |
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Term
| The dorsal scapular nerve (C4 and C5) |
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Definition
| What innervates do the rhomboideus major and minor muscles? |
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