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13 Cards in this Set

  • Front
  • Back
scapular spine divides scapula into what two parts
supraspinous fossa and infraspinous fossa
What creates the supraspinatous tunnel
corocoid process and acromion
What does the coracoacromial arch consist of
Acromion, corocoid process and coracoacromial ligament
What two ligaments make up the coracoclavicular ligaments
trapezoid and conoid ligaments
4 rotator cuff muscles and movement associated with them
subscapularis (IR)
supraspinatous (abd of glenoidhumeral joint to 15)
infraspinatus (ER)
Teres minor (helps with abduction, ER)
Origin, insertion, innervation and action of supraspinatus
Origin: Suprasinatous foss
Insertion: Greater tubercle
Innervation: Suprascapular nerve (C4-6)
Action: Abduction
Origin, insertion, innervation and action of infraspinatus
Origin: infraspinatous fossa
Insertion: Greater tubercle
Innervation: Suprascapular nerve (C5,6)
Action: ER
What rotator cuff muscle is more susceptible to tearing?
supraspinatus muscle
Origin, insertion, innervation and action of teres major
**Not a rotator cuff muscle**
Origin: Lateral border of scapula
Insertion: Crest of the lesser tubercle
Innervation: Lower subscapular nerve (C5-C7)
Action: IR, adduction
Origin, insertion, innervation and action of teres minor
Origin: Lateral border of scapula (above t.major)
Insertion: Greater tubercle
Innervation: axillary (C5,C6)
Action: ER
Origin, insertion, innervation and action of subscapularis
Origin: subscapular fossa (anterior)
Insertion: Lesser tubercle
Innervation: Upper and lower subscapular nerve (C5-C7)
Action: IR, Adduction
What are the 3 muscles that insert at the greater tubercle
Teres minor, infraspinatus, supraspinatus
If pt. cant abduct to 15 degrees what rotator cuff muscle has been affected
supraspinatus muscle