unit 4 scapular/pectoral region Flashcards
What innervates the deltoid? blood supply?
axillary nerve (C4-C5); posterior circumflex humeral a. & deltoid branch of the thoracoacromial a.
What does the deltoid do?
abducts, flexes, extends, rotates the humerous
What innervates the teres major muscle? blood supply?
inferior subscapular n. (C5, C6, C7); subscapular & circumflex subscapular a
What does the teres major do?
medial rotation and extension of the arm
What innervates the supraspinatus muscle? blood supply?
suprascapular n (C5, C6); suprascapular a
What does the supraspinatus do?
abduction of arm
What innervates the infraspinatus muscle? blood supply?
suprascapular n; suprascapular a
What does the infraspinatus and teres minor m do?
rotate arm laterally
What innervates teres minor? blood supply?
axillary n (C5, C6); subscapular and circumflex subscapular a.
What innervates the subscapularis muscle?
upper and lower subscapular n (C5,C6,C7)
What does the subscapularis m do?
rotate arm medially
What runs through the quadrangular space?
axillary n and posterior circumflex humeral a.
What runs deep to the triangular space?
deep circumflex scapular a
What runs through the triangular interval space?
radial nerve
