Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Shoulder/Arm Muscles

Superficial and deep muscles of the shoulder and arm

TermDefinition
Trapezius Origin: posterior occipital bone, igentum nuchae, C7-T12; Insertion: clavicle, acromion, and spine of scapula; Action: extends and abducts head, rotates and adducts scapula, fixes scapula
Deltoid Origin: clavicle, acromion, spine of scapula; Insertion: deltoid tuberosity of the humerus; Action: abducts arm, flexes, extends, medially, and laterally rotates arm
Pectoralis Major Origin: clavicle, sternum, cartilages of ribs 1-7; Insertion: crest of greater tubercle of humerus; Action: flexes, adducts, and medially rotates arm
Pectoralis Minor Origin: ribs 3-5; Insertion: coracoid process of scapula; Action: depresses glenoid cavity, raises ribs 3-5
Latissimus Dorsi Origin: T7-12, L1-5, S1-5, crest of ilium, ribs 10-12; Insertion: intertubercular groove of humerus; Action: extends, adducts, and medially rotates arm, draws shoulder inferiorly
Supraspinatus Origin: suprapinous fossa; Insertion: greater tubercle of humerus; Action: abducts arm, helps stabilize shoulder joint
Infraspinatus Origin: infraspinous fossa; Insertion: greater tubercle of humerus; Action: laterally rotates arm, stabilize shoulder joint
Subscapularis Origin: subscapular fossa; Insertion: lesser tubercle of humerus; Action: medially rotates arm, stabilizes shoulder joint
Teres Minor Origin: lateral border of scapula; Insertion: greater tubercle of humerus; Action: laterally rotates and adducts arm, stabilizes shoulder joint
Teres Major Origin: inferior angle of scapula; Insertion: crest of lesser tubercle of humerus; Action: extends, adducts, and medially rotates arm
Biceps Brachii Origin: long head: superior margin of glenoid cavity, short head: coracoid process of scapula; Insertion: radial tuberosity; Action: flexes arm, flexes forearm, supinates hand
Triceps Brachii Origin: infraglenoid tuberosity of scapula, lateral and posterior surface of humerus; Insertion: olranon process, tuberosity of ulna; Action: extends and adducts arm, extends forearm
Coracobrachialis Origin: coracoid process of scapula; Insertion: midmedial shaft of humerus; Action: flexes and adducts arm
Brachialis Origin: anterior, distal surface of humerus; Insertion: coronoid process of ulna; Action: flexes forearm
Brachioradialis Origin: lateral supracondylar ridge of humerus; Insertion: styloid process of radius; Action: flexes forearm
Created by: koalas2013