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7 Cards in this Set
- Front
- Back
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Trapezius
2 parts 1. Cervical Part General Location- Shoulder, back and neck- superficial |
Origin- Median raphe of the neck, supraspinous ligament
Insertion- Dorsal spine of scapula Action- Elevates scapula cranially and dorsally |
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Trapezius
2 parts 2. Thoracic Part General Location- Shoulder, back and neck- superficial |
Origin- Supraspinous ligament, dorsal SP of T3-T9
Insertion- Middle of spine of scapula Action- Elevates scapula |
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Latissimus Dorsi
General Location- Lateral, covers rib cage- superficial |
Origin- Thoracolumbar fascia from the spinous processes
Insertion- media intertubercular groove of the humerus Action- Draws limbs caudally, assists in lateral flexion- Digging |
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External Intercostals
General Location- Between the ribs |
Origin- Caudal border of a rib
Insertion- Cranial border of next caudal rib Action- Draws ribs cranially in inhalation |
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Internal Intercostals
General location- Between the ribs- Deep |
Origin- Cranial border of a rib
Insertion- Caudal border of next cranial rib Action- Draws ribs caudally in exhalation |
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Iliocostalis System
2 parts Thoracis and Lumborum General Location- Dorsolateral trunk- Deep |
Origin- Ribs 2-12, ilium, iliac crest
Insertion- Costal angles of ribs, TP C7 Action- Lateral flexion, stabilizes spine, exhalation |
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Longissimus System
3 parts 1. Thoracolumbar 2. Cervicis 3. Capitis General Location- Dorsal trunk- Deep |
Origin- SPs of all vertebrae, supraspinous ligament, TP T3-C3
Insertion- Ribs and vertebrae, mastoid process of temporal bone Action- Extends spine, raises cranial portion of body from pelvis, stabalizes spine, extends neck, lateral flexion and rotation of neck, raises caudal body with hindlimb. |
