Term
| Where does the clavicle attatch? |
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Definition
Sternoclavicular joint
Coracoclavicular ligament
Acromioclavicular joint |
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Term
| What is the action/purpose of the clavicle? |
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Definition
keeps the scapula and humerus lateral with the help of the coracoclavicular ligament and the medial articular disc. |
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Term
| The costoclavicular attatches where? |
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Definition
| The costal cartilage of the rib 1 to the clavicle |
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Term
| The coracoclavicular ligament is formed by what? |
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Definition
| Coracoclavicular ligament is formed by conoid and trapezoid portions |
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Term
| The coracoclavicular ligament is classified as what? Which means what? |
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Definition
| The coracoclavicular ligament is classified as a syndesmosis, which means that 2 bones are attatched together by a ligament |
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Term
| What is the purpose of the coracoclavicular ligament? |
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Definition
| It prevents the scapula from being driven medially |
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Term
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Definition
| A partial dislocation of the coracoclavicular ligament |
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Term
| The acromioclavicular joint's purpose is what? |
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Definition
| To allow the scapula to move vertically on the thoracic cage (shrugging the shoulders) & allows for anterior and posterior movement of the scapula on the thoracic cage |
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Term
| What are the movements of the shoulder girdle? |
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Definition
Elevation of the scapula
Depression of the scapula
Elevation with superior rotation of the glenoid cavity
Depression withthe inferior rotation ofthe glenoid cavity
Protraction of the scapula
Retraction of the scapula |
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Term
| The deltoid muscle attatches where? |
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Definition
Attaches from the lateral 1/3 of the clavicle, the lateral border of the acromion and the spine of the scapula |
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Term
| The deltoid muscle inserts where? |
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Definition
| On the deltoid tuberosity on the humerous |
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Term
| What nerve innervates the deltoid muscle? |
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Definition
| Axillary nerve (C5, 6) from the posterior cord of the brachial plexus |
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Term
| What are the actions of the deltoid muscle? |
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Definition
Abducts the humerus
Flexes the humerus
Extends the humerus |
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Term
| The axillary (circumflex) nerve innervates what muscles? |
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Definition
| The teres minor, deltoid muscle, and the quadrangular space |
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Term
| The rotator cuff is formed by what muscles? |
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Definition
Subscapularis
Supraspinatus
Infraspinatus
Teres Minor
(Teres Major) |
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Term
| Subscapularis' orgin is where? |
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Definition
| Subscapularis originates on the subscapular fossa |
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Term
| Where does subscapularis' insertion? |
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Definition
| The lesser tubercle and medial lip of the bicipital groove on the humerus |
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Term
| What nerve innervates subscapularis? |
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Definition
| The upper and lower subscapular nerves, from the posterior cord of the brachial plexus |
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Term
| What is the action of subscapularis? |
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Definition
| Medially rotates the humerus |
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Term
| What does serratus anterior do? |
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Definition
| Serratus anterior keeps the scapula protracted |
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Term
| Teres Major originates what? |
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Definition
| On the dorsum of the inferior angle and lateral border of the scapula |
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Term
| The insertion of Teres Major is where? |
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Definition
| The medial lip of the bicipital groove |
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Term
| What nerve innervates the Tere Major muscle? |
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Definition
| The lower scapular nerve (C5, 6) |
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Term
| What is the action of teres major? |
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Definition
| Teres major medially rotates the humerus |
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Term
| Where is the origin of teres minor? |
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Definition
| It is on upper two thirds of the lateral border of the scapula |
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Term
| Where is the insertion of teres minor |
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Definition
| Teres minor inserts at the posterior portion of the greater tubercle on of the humerus |
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Term
| What nerve innervates the teres minor muscle? |
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Definition
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Term
| What is the action of teres minor |
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Definition
| Teres minor laterally rotates the humerus |
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Term
| What is the origin of supraspinatus? |
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Definition
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Term
| Where does supraspinatus insert? |
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Definition
| The greater tubercle of the humerus |
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Term
| What nerve innervates supraspinatus? |
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Definition
| Suprascapular nerve (C5, 6) |
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Term
| What is the function of supraspinatus? |
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Definition
| Supraspinatus begins abduction of the humerus |
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