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Questions and Answers
What is the primary action of the teres major muscle?
What is the primary action of the teres major muscle?
- Flexes and extends the arm
- Elevates and depresses the scapula
- Abducts and laterally rotates the arm
- Adducts and medially rotates the arm (correct)
Which nerve provides the innervation for the teres major muscle?
Which nerve provides the innervation for the teres major muscle?
- Axillary nerve (C5, C6)
- Thoracodorsal nerve (C6, C7, C8)
- Inferior subscapular nerve (C6, C7) (correct)
- Suprascapular nerve (C5, C6)
Where does the teres major muscle originate?
Where does the teres major muscle originate?
- Lateral border of the scapula
- Superior angle of the scapula
- Posterior surface of the inferior angle of the scapula (correct)
- Anterior surface of the scapula
Which artery primarily supplies blood to the teres major muscle?
Which artery primarily supplies blood to the teres major muscle?
Where does the teres major muscle insert?
Where does the teres major muscle insert?
Flashcards
Teres Major
Teres Major
A muscle that adducts and medially rotates the arm.
Origin of Teres Major
Origin of Teres Major
Posterior surface of the inferior angle of the scapula.
Insertion of Teres Major
Insertion of Teres Major
Medial lip of the intertubercular sulcus of the humerus.
Innervation of Teres Major
Innervation of Teres Major
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Action of Teres Major
Action of Teres Major
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Study Notes
Teres Major Muscle
- Origin: Posterior surface of the inferior angle of the scapula.
- Insertion: Medial lip of the intertubercular sulcus.
- Innervation: Inferior subscapular nerve (C6, C7).
- Action: Adducts and medially rotates the arm.
- Blood Supply: Circumflex scapular artery.
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