Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
Pectoralis major |
ORIGIN: Clavicle (clavicular head), sternum, and costal cartilages of ribs 2–6 and sometimes ribs 1–7 (sternocostal head). INSERTION: Greater tubercle and lateral lip of intertubercular sulcus of humerus ACTION: As a whole, adducts and medially rotates arm at shoulder joint; clavicular head flexes arm, and sternocostal head extends flexed arm to side of trunk. INNERVATION: Medial and lateral pectoral nerves. |
AXIAL MUSCLE THAT MOVE THE HUMERUS |
|
|
Latissimus dorsi |
ORIGIN: Spines of T7–L5, lumbar vertebrae, crests of sacrum and ilium, ribs 9–12 via thoracolumbar fascia. INSERTION: Intertubercular sulcus of humerus ACTION: Extends, adducts, and medially rotates arm at shoulder joint; draws arm inferiorly and posteriorly. RMA: Elevates vertebral column and torso. INNERVATION: Thoracodorsal nerve. |
AXIAL MUSCLE THAT MOVE THE HUMERUS |
|
|
Deltoid |
ORIGIN: Acromial extremity of clavicle (anterior fibers), acromion of scapula (lateral fibers), and spine of scapula (posterior fibers). INSERTION: Deltoid tuberosity of humerus. ACTION: Lateral fi bers abduct arm at shoulder joint; anterior fi bers fl ex and medially rotate arm at shoulder joint; posterior fi bers extend and laterally rotate arm at shoulder joint. INNERVATION: Axillary nerve |
SCAPULAR MUSCLE THAT MOVE THE HUMERUS |
|
|
Subscapularis |
ORIGIN: Subscapular fossa of scapula. INSERTION: Lesser tubercle of humerus ACTION: Medially rotates arm at shoulder joint. INNERVATION: Upper and lower subscapular nerve |
SCAPULAR MUSCLE THAT MOVE THE HUMERUS |
|
|
Supraspinatus |
ORIGIN: Supraspinous fossa of scapula INSERTION: Greater tubercle of humerus ACTION: Assists deltoid muscle in abducting arm at shoulder joint. INNERVATION: Suprascapular nerve |
SCAPULAR MUSCLE THAT MOVE THE HUMERUS |
|
|
Infraspinatus |
ORIGIN: Infraspinous fossa of scapula INSERTION: Greater tubercle of humerus ACTION: Laterally rotates arm at shoulder joint INNERVATION: Suprascapular nerve |
SCAPULAR MUSCLE THAT MOVE THE HUMERUS |
|
|
Teres major |
ORIGIN: Inferior angle of scapula INSERTION: Medial lip of intertubercular sulcus of humerus ACTION: Extends arm at shoulder joint and assists in adduction and medial rotation of arm at shoulder joint INNERVATION: Lower subscapular nerve |
SCAPULAR MUSCLE THAT MOVE THE HUMERUS |
|
|
Teres minor |
ORIGIN: Inferior lateral border of scapula INSERTION: Greater tubercle of humerus ACTION: Laterally rotates and extends arm at shoulder joint INNERVATION: Axillary nerve |
SCAPULAR MUSCLE THAT MOVE THE HUMERUS |
|
|
Coracobrachialis |
ORIGIN: Coracoid process of scapula INSERTION: Middle of medial surface of shaft of humerus ACTION: Flexes and adducts arm at shoulder joint INNERVATION: Musculocutaneous nerve |
SCAPULAR MUSCLE THAT MOVE THE HUMERUS |
