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Glenohumeral Joint
| Question | Answer |
|---|---|
| What are the 3 shoulder joints? | Ball and socket joint Articulations and Ligaments |
| What joint is the most mobile in the body? | Ball and Socket joint |
| What is the definition of articulation? | To joint or link |
| __________ is the head of the humerus that articulates with the glenoid cavity of the scapula? | Articulations |
| What is the bone to bone attachment? | Ligaments |
| Is the shoulder joint the weakest ligamentous joint in the body? | Yes |
| Other than the fibrous membrane of the joint capsule, there are so strong ________ anchoring the humerus to the scapula. | Ligaments |
| Some of the attendance of the shoulder presses the function in a __________ __________ | Ligamentous Role |
| What are the movements of the shoulder joint? | Flexion, extension, abduction, adduction, medial rotation and lateral rotation |
| If the movement of the shoulders is forward like a zombie, what would that movement be called? | Flexion |
| Is the movement of the shoulder joint is we get it back from zombie, what is that movement called? | Extention |
| What is the movement of the shoulder joint call when lifting your arms on the side, like your going to fly? | Abduction |
| What is the movement of the shoulder joint called when bringing your arms down from flying? | Adduction |
| What is the movement of the shoulder joint call when folding the elbows up and bringing the arms in as if you were giving yourself a hug? | Medial Rotation |
| What is the movement of the shoulder joint called when the elbows are folded up and you pull your arms back away from your body? | Lateral Rotation |
| Various muscles that cross the shoulder joint, which produce the movement of the humerus, can be subdivided into four groups, what are they? | -rotator cuff muscle -shoulder cap -intertubercular groove muscle -brachial muscle |
| What does the rotator cuff muscles do? | It holds humorous in place |
| How many muscles are in the rotator cuff muscles? | 4 |
| Where are the 4 muscles in the rotator cuff muscles? | -Supraspinatus muscle -Infraspinatus -Tere Minor -Subscapularus |
| What does supra mean? | Superior or above |
| What does the spinatus referred to? | It refers to the spine of the scapula |
| What is the origin of the rotator cuff? | Supraspinous Fossa |
| Where is the insertion of the rotator cuff? | Greater tubercle |
| What is the function of the rotator cuff? | Abducts the shoulder and initiates abduction from 0 degrees to 15 degrees |
| What is the structure and relationship of the rotator cuff,? | Deep to the trapezius |
| What does infra mean? | Inferior or below |
| What does spinatus refer to? | Spine of the scapula |
| What is the origin of the infraspinatus? | Infraspinaus fossa |
| What is the insertion of the infraspinatus? | Greater tubercle |
| What is the function of the infraspinatus? | Laterally rotates |
| What is the structure and relationship of the infraspinatus? | Half deep to deltoid and half superficial |
| What does Teres mean? | Round |
| What does reminder mean? | Lesser/less |
| What is the origin of the teres minor? | Lateral margin |
| What is the insertion of the teres minor? | Greater tubercle |
| What is the function of the teres minor? | Laterally rotates shoulder |
| What is the structure and relationship of the teres minor? | Mose is deep to the Deltoid |
| What does sub- mean? | Beneath |
| What is scapularis referring to? | To the scapula |
| What is the origin of the subscapularis? | Subscapular fossa |
| Where is the insertion of the subscapularis? | Lesser tubercle |
| What is the function of that subscapularis? | Medially rotates the shoulder |
| What is the structure and relationship of the subscapularis? | Very deep and under scapula |
| What does the rotator cuff muscles have common? | Greater tubercle of the humerus |
| What do three of the four rotator cuff muscles have in common? | Greater tubercle of the humerus |
| What are the common actions at the joint of the rotator cuff? | Rotates the scapula |
| What do the muscles crossing the back of the joint do? | Rotates laterally |
| What does the muscles crossing the front of the joint do? | Rotates medially |
Created by:
Dianadivina1
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