Term
| Pectoralis Major Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Anterior sternum, upper 6 costal cartilages, medial 1⁄2 clavicle.
I: Lateral lip of intertubercular groove of humerus
N: Lateral and Medial Pectoral Nerves
A: Adducts and Medial Rotates Humerus
B: pectoral branch of the thoracoacromial trunk |
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Term
| Pectoralis Minor Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: 3rd-5th ribs near their costal cartilages
I: Coracoid process of scapula
N: Medial Pectoral Nerve
A: Stabilizes scapula by drawing it inferiorly and anteriorly against thoracic wall
B: pectoral branch of the thoracoacromial trunk |
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Term
| Subclavius Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Junction of 1st rib and its costal cartilage
I: Inferior Surface of Clavicle
N: Nerve to Subclavius
A: Anchors and Depresses Clavicle
B: clavicular branch of thoracoacromial trunk |
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Term
| Serratus Anterior Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: External surfaces of lateral parts of 1st-8th ribs
I: Medial border of scapula
N: Long Thoracic Nerve
A: Protracts scapula and holds it against thoracic wall
B: lateral thoracic artery (upper part), thoracodorsal artery (lower part) |
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Term
| Trapezius Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Medial 1/3 of superior nuchal line, external occipital protuberance, nuchal ligament,
spinous processes of C7-T12 vertebrae
I: Lateral 1/3 of clavicle, acromion and spine of scapula
N: Accessory nerve, C3-4 spinal nerve
A: Superior part: elevates scapula
Middle part: retracts scapula
Inferior part: depresses scapula
B: Variation 1- superficial branch of transverse cervical artery
Variation 2 - superficial cervical artery |
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Term
| Latissimus Dorsi Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Spinous processes of inferior 6 thoracic
vertebrae, thoracolumbar fascia, iliac crest
I: Intertubercular groove of humerus
N: Thoracodorsal nerve
A: Extends, adducts, and medially rotates humerus
B: thoracodorsal branch of the subscapular artery |
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Term
| Levator Scapulae Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Posterior tubercles of transverse processes of C1-4 vertebrae
I: Medial border of scapula superior to root of spine
N: Dorsal scapular and cervical nerves
A: Elevates scapula, inferiorly rotates glenoid cavity
B: dorsal scapular artery |
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Term
| Rhomboid Minor Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Nuchal ligament, spinous processes of C7-T1 vertebrae
I: Medial border of scapula near root of spine
N: Dorsal scapular nerve
A: Retract scapula and rotate it to depress glenoid cavity
B: dorsal scapular artery |
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Term
| Rhomboid Major Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Spinous processes of T2-5 vertebrae
I: Medial border of scapula from spine to inferior angle
N: Dorsal scapular nerve
A: retract scapula and rotate it to depress glenoid cavity
B: dorsal scapular artery |
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Term
| Deltoid Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Lateral 1/3 of clavicle, acrominion, and spine of scapula
I: Deltoid tuberosity of humerus
N: Axillary nerve
A:
Anterior portion: flexes and medially rotates arm
Middle portion: abducts arm
Posterior portion: extends and laterally rotates arm
B: primarily posterior circumflex humeral artery |
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Term
| Supraspinatus Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Supraspinous fossa of scapula
I: Greater tubercle of humerus
N: Suprascapular nerve
A: Abducts arm; acts with rotator cuff muscles
B: suprascapular artery |
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Term
| Infraspinatus Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Infraspinous fossa of scapula
I: Greater tubercle of humerus
N: suprascapular nerve
A: Laterally rotates arm
B: suprascapular and circumflex scapular arteries |
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Term
| Teres Minor Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Middle of lateral border of scapula
I: Inferior Facet of Greater tubercle of humerus (siT)
N: Axillary nerve
A: Laterally rotates arm; adducts arm
B: posterior circumflex humeral artery and the circumflex scapular artery |
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Term
| Teres Major Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Posterior surface of inferior angle of scapula
I: medial lip of intertubercular groove of humerus
N: lower subscapular nerve
A: Medially rotates arm; adducts arm
B: Subscapular artery, circumflex scapular artery |
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Term
| Subscapularis Origin, Insertion, Invervation, Action, Blood Supply |
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Definition
O: Subscapular fossa of scapula
I: lesser tubercle of humerus
N: upper and lower subscapular nerves
A: Medially rotates arm; adducts arm
B: transverse cervical artery, subscapular artery |
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Term
| Muscles That Make Up The Rotator Cuff (4) |
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Definition
| Supraspinatus, Infraspinatus, Teres Minor, and Subscapularis |
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Term
| The dorsal scapular nerve innervates |
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Definition
| The deep posterior shoulder muscles (levator scapulae (also innervated by cervical nerves), and rhomboid minor and major |
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Term
| Normally, which bursa communicates with the joint cavity of the glenohumeral joint? |
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Definition
| The subscapular bursa usually communicates with the joint cavity |
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Term
| What structures form the pectoral girdle? (2) |
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Definition
| The left and right clavicles, and left and right scapulae |
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Term
| A lesion of which spinal roots or trunk of the brachial plexus results in Klumpke paralysis? |
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Definition
| C8 and T1 or the Inferior Root |
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Term
| What is the function/movement of the acromioclavicular joint? |
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Definition
| The AC joint allows the ability to raise the arm above the head. This joint functions as a pivot point (although technically it is a gliding synovial joint) |
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Term
| For which nerve and artery is the army/navy reference and to what ligament? |
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Definition
| The suprascapular nerve and artery goes over and under the the superior transverse scapular ligament |
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Term
| Where are the radial and ulnar collateral ligaments located (at wrist and elbow)? |
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Definition
Ulnar Collateral Wrist- From the styloid process to the medial side of the triquetral bone, and the pisiform and flexor retinaculum.
Radial Collateral Wrist- Tip of the styloid process to the radial side of the scaphoid
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Ulnar Collateral Elbow (UCL) (medial collateral ligament)- Medial epicondyle to the medial margin of the coronoid process of the ulna and the medial margin of the olecranon
Radial Collateral Elbow (RCL)- From the lateral epicondyle to the annular ligament deep to the common extensor tendon (considered part of this ligament--is in some, isn't in others) the lateral ulnar collateral ligament (LUCL), from the lateral epicondyle to the supinator crest on the ulna |
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