OIAN-upper limb Flashcards
To learn all OIAN's for upper limb
Deltoid
Origin:
- Lateral third of clavicle
- Acromion
- Spine of scapula
I: Deltoid tuberosity of humerus
N: Axillary Nerve (C5, C6)
Action:
- ANT: Flex, intern. rot.
- MID: Abduction
- POST: Extention, extern. rot.
Supraspinatus
O: Supraspinous fossa
I: Superior facet of greater tubercle
N: Suprascapular (C4, C5, C6)
Action:
-Initiates Abd (30 deg)
Infraspinatus
O: Infraspinatus fossa
I: Middle facet of greater tubercle
N: Suprascpular (C5, C6)
Action:
-External rotation
Teres minor
O: Middle part of lateral border of scap
I: Inferior facet of greater tubercle
N: Axillary (C5, C6)
Action:
-External rotation
Teres major
O: Posterior side of inferior angle of scap
I: Medial lip of bicipital groove
N: Lower Subscapular (C5, C6)
Action:
-Adduction
Internal rotation
Subscapularis
O: Subscapular fossa
I: Lesser tubercle
N: Upper & Lower Subscapular (C5, C6, C7)
Action:
- Internal rotation
- Helps hold humeral head in place
Pectoralis major
Origin:
- Clavicular fibers: anterior surface os clavicle
- Sternal fibers: anterior surface of sternum, ribs 1-6
I: Lateral lip of bicipital groove
Nerves:
- Lateral pectoral
- Medial pectoral nerve
- Clavicular head (C5, C6)
- Sternocostal head (C7, C8, T1)
Action: -Adduction -Internal rotation Clavicular head: flexes Sternocostal head: extends
Pectoralis minor
O: 3rd-5th ribs
I: Medial border/superior surgace of CORACOID PROCESS
N: Medial Pectoral (C8, T1)
Action:
- Stabilization of scap
Subclavius
O: Junction of 1st rib and cartilage
I: Inferior surface of middle clavicle
N: Subclavius (C5, C6)
A: anchors & depresses clavicle
Sarratus Anterior
O: Outside surface of lateral parts of rib 1-8
I: Anterior surface of medial border of scap
N: Long thoracic (C5, C6, C7)
Action:
- protraction
- stabilization
- rotation of scap
Trapezius
Oirigin:
- superior nuchal line
- nuchal ligament
- occiput
- C7-T12 SP
Insertion:
- Lateral clavicle
- Acromion
- Spine of scap
N: Spinal accessory (CN XI)
Action:
- Upper: elevation
- Middle: retraction
- Lower: depression
- upper & lower = upwd rotation
Latissimus dorsi
Oirigin:
- SP T7-T12
- Thoracolumbar fascia
- Iliac crest
- last 4 ribs
I: Floor of bicipital groove
N: Thoracodorsal (C6, C7, C8)
Action:
- Adduction
- Extension
- Internal rotation
Levator Scapulae
O: posterior tubercles of TP’s C1- C4
I: Above root of scapular spine
N: Dorsal scapular nerve (C3, C4, C5)
Action:
- Elevation of scap
- Dwnd rotation
Rhomboid minor
O:
- Nuchal ligament
- SP C7-T1
I: Medial end of scap spine
N: Dorsal scapular (C4, C5)
A:
- retraction
- Dwnd rotation
- Stabilize
Rhomboid major:
O:
-SP T2-T5
I: medial border of scap:
-from spine to inferior angle
N: Dorsal scapular (C4, C5)
A:
- retraction
- Dwnd rotation
- Stabilize