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Glenohumeral Joint

QuestionAnswer
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