Podcast
Questions and Answers
What is the primary action performed by the muscle that originates from the infraspinous fossa of the scapula?
What is the primary action performed by the muscle that originates from the infraspinous fossa of the scapula?
- Flexion of the arm
- Medial rotation of the arm
- Extension of the arm
- Lateral rotation of the arm (correct)
Which nerve provides innervation to the muscle originating from the infraspinous fossa?
Which nerve provides innervation to the muscle originating from the infraspinous fossa?
- Suprascapular nerve (correct)
- Musculocutaneous nerve
- Thoracodorsal nerve
- Axillary nerve
Where does the muscle that acts on the arm from the infraspinous fossa insert?
Where does the muscle that acts on the arm from the infraspinous fossa insert?
- Radial tuberosity
- Lesser tubercle of the humerus
- Middle facet of the greater tubercle of the humerus (correct)
- Coracoid process of the scapula
Which artery supplies blood to the muscle that originates from the infraspinous fossa?
Which artery supplies blood to the muscle that originates from the infraspinous fossa?
In conjunction with which muscle does the muscle from the infraspinous fossa perform its primary action?
In conjunction with which muscle does the muscle from the infraspinous fossa perform its primary action?
Flashcards
Infraspinous fossa
Infraspinous fossa
A shallow depression on the scapula for muscle attachment.
Insertion of Infraspinatus
Insertion of Infraspinatus
Middle facet of the greater tubercle of the humerus is where the infraspinatus attaches.
Innervation of Infraspinatus
Innervation of Infraspinatus
Supplied by the suprascapular nerve (C5, C6).
Action of Infraspinatus
Action of Infraspinatus
Signup and view all the flashcards
Blood Supply to Infraspinatus
Blood Supply to Infraspinatus
Signup and view all the flashcards
Study Notes
Infraspinous Fossa of the Scapula
- Insertion: Middle facet of the greater tubercle of the humerus
- Innervation: Suprascapular nerve (C5, C6)
- Action: Lateral rotation of the arm (works with Teres Minor)
- Blood Supply: Suprascapular artery
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
