Podcast
Questions and Answers
Qual action ha le trapezio?
Qual action ha le trapezio?
- Depresse le ribs
- Rotate le humerus
- Elevate e retracte le scapula (correct)
- Extende le humerus
De ubi origina le latissimus dorsi?
De ubi origina le latissimus dorsi?
- Ligamentum nuchae
- Transverse processes de C1–C4
- Spines de C7–T1
- Spines de T6–T12 (correct)
Qual nerve innerva le levator scapulae?
Qual nerve innerva le levator scapulae?
- Thoracodorsal nerve
- Dorsal scapular nerve (correct)
- Cranial Nerve XI
- Spinal nerve C5
Qual action es associate con le rhomboid major?
Qual action es associate con le rhomboid major?
Qual es le function del serratus posterior inferior?
Qual es le function del serratus posterior inferior?
Flashcards
Trapezius
Trapezius
Muscle that elevates, retracts, and rotates the scapula.
Latissimus Dorsi
Latissimus Dorsi
Muscle that extends, adducts, and medially rotates the humerus.
Levator Scapulae
Levator Scapulae
Muscle that primarily elevates the scapula.
Rhomboid Major
Rhomboid Major
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Serratus Posterior Superior
Serratus Posterior Superior
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Study Notes
Muscels of the Back and Upper Limb
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Trapezius:
- Origin: Ligamentum nuchae and spines of vertebrae C7 to T12.
- Insertion: Lateral clavicle, acromion, and spine of the scapula.
- Action: Elevates, retracts, and rotates the scapula.
- Innervation: Cranial Nerve XI (spinal accessory) and spinal nerves C3–C4.
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Latissimus Dorsi:
- Origin: Spines of vertebrae T6 to T12, thoracolumbar fascia, and iliac crest.
- Insertion: Intertubercular groove of the humerus.
- Action: Extends, adducts, and medially rotates the humerus.
- Innervation: Thoracodorsal nerve.
-
Levator Scapulae:
- Origin: Transverse processes of cervical vertebrae C1 to C4.
- Insertion: Superior medial border of the scapula.
- Action: Elevates the scapula.
- Innervation: Dorsal scapular nerve and spinal nerves C3 and C4.
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Rhomboid Minor:
- Origin: Spines of vertebrae C7 to T1.
- Insertion: Inferior medial border of the scapula.
- Action: Retracts and rotates the scapula.
- Innervation: Dorsal scapular nerve.
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Rhomboid Major:
- Origin: Spines of vertebrae T2 to T5.
- Insertion: Inferior medial border of the scapula.
- Action: Retracts and rotates the scapula.
- Innervation: Dorsal scapular nerve.
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Serratus Posterior Superior:
- Origin: Spines of vertebrae C7 to T3.
- Insertion: Superior border of ribs 2 to 5.
- Action: Elevates the ribs.
- Innervation: Intercostal nerves T2 to T5.
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Serratus Posterior Inferior:
- Origin: Spines of vertebrae T11 to L2.
- Insertion: Inferior border of ribs 8 to 12.
- Action: Depresses the ribs.
- Innervation: Intercostal nerves T9 to T12.
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