Lecture #5 (Huge portion of EXAM) Flashcards
(34 cards)
What is the main purpose of the rotator cuff?
To keep the glenohumeral joint in place
What are the ligaments surrounding the glenohumeral joint called?
- Superior glenohumeral
- Middle glenohumeral
- Inferior glenohumeral (slack for lifting arm above head)
degrees of abduction in glenohumeral joint?
90-95
Degrees of extension in glenohumeral joint?
40-60
Degrees of flexion?
90-100
Degrees of adduction?
0
Degrees of internal and external rotation?
70-90
What are the strong and weak muscles in the glenohumeral joint?
Weak = external rotators Strong = Internal rotators
What are the 4 muscles of the rotator cuff?
- Supraspinatus
- Infraspinatus
- Teres minor
- Subscapilaris
What are some intrinsic (small) muscles in the glenohumeral joint?
- Deltoid
- Teres major
Pectorallis major OINA?
O: Medial half of clavicle, costal cartilage of first 6 ribs
I: Lateral lip of bicipital groove
N: medial and lateral pectoral nerve
A: Internal rotation, adduction, horizontal adduction
How to strengthen pectorallis major?
-Chest compressions
-Push ups
FREE WEIGHT: laying on back doing the fly and bringing the arms in
How to stretch pectorallis major?
Doorway stretch
Latissimus dorsi OINA?
O: Posterior ilium, spinous process of sacrum up to T6
I: Floor of bicipital groove
N: Thoracodorsal nerve
A: Adduction, Internal rotation, extension
How to strengthen lat dorsi?
Lat pull downs with thera band
FREE WEIGHTS: bent over one arm rows
How to stretch lats dorsi?
Arms above head and lean to one sidw
Teres major OINA?
O: Inferior angle of the scapula
I: Medial lip of the bicipital groove
N: Lower supscapular nerve
A: Adduction, internal rotation, extension
How to strengthen teres major?
Lat pull downs with thera band
FREE WEIGHT: Bent over one arm rows
Name 3 muscles which internal rotation and adduction the glenohumeral joint?
Teres major
Latissimus dorsi
Pectorallis major
Deltoid OINA?
O: lateral 1/3 of clavicle, acromion, spine of scapula
I: Deltoid tuberosity
N: axillary nerve
A: Anterior/flexion, Middle/Abduction, Posterior/Extension
How to strengthen deltoid?
Theraband on foot and flex/abduct/extend
FREE WEIGHT = Same
Coracobrachialis OINA?
O: Coracoid process
I: Middle 1/3 of humerus
N: Musculocutaneous
A: Flexion
Subscapularis muscle OINA?
O: Subscapular fossa
I: lesser tubricle (only muscle that attaches here)
N: Upper/lower subscapular nerve
A: Internal rotation
Strengthning of subscapularis?
Resist on internal rotation with thera band
FREE WEIGHT: lie on arm and fold it towards body
