Muscles OIAN Flashcards
Deltoid insertion
Deltoid tuberosity
Deltoid origin
Lat 1/3 clavicle
Acromion
Spine of Scap
Deltoid actions
ABD
EXT , LR - post fibers
FLX , MR - ant fibers
Deltoid nerve
Axillary nerve
Trapezius origin
EOP
Sup. Nuchal lines
Lig. Nuchae
C7-T12
Trapezius insertion
Lat 1/3 clavicle
Acromion
Spine of Scap
Trapezius actions
upper fibers: EXT head FLX head ROT head ELV scap lower fibers: DEP Scap middle fibers: ADD Scap
Trapezius nerve
Cranial nerve XI
Spinal Accessory Nerve
Latissimus Dorsi origin
T7-L5 Thoracolumbar aponeurosis Iliac crest posterior Last 3 or 4 ribs Inf angle Scap
Latissimus Dorsi insertion
(lateral) Crest of Lesser Tubercle
Lats actions
EXT
ADD
MR
Lats nerve
Thoracodorsal nerve
Teres Major origin
Dorsal Inf angle Scap
Lower 1/2 lat border Scap
Teres Major insertion
(Medial) Crest of Lesser tubercle
Teres Major actions
EXT
ADD
MR
Teres Major nerve
Subscapular nerve
Supraspinatus origin
Supraspinous fossa
Supraspinatus insertion
superior Greater tubercle
Supraspinatus action
First 15* ABD
Supraspinatus nerve
Suprascapular nerve
Infraspinatus origin
Infraspinous fossa
Infraspinatus insertion
post sup GT
Infraspinatus action
ABD
EXT
LR
Infraspinatus nerve
Suprascapular nerve
Teres Minor origin
superior 1/2 Axillary (Lateral) Border
Teres Minor insertion
Post inf GT
Teres Minor action
ADD
LR
EXT
Teres Minor nerve
Axillary nerve
Subscapularis origin
Subscapular fossa
Subscapularis insertion
Lesser Tubercle
Subscapularis action
MR
Subscapularis nerve
Subscapular nerve
Rhomboid Major origin
SPs T2-T5
Rhomboid Minor origin
SPs C7-T1
Rhomboid insertion
Medial border (between spine & inf. angle)
Rhomboid action
Down ROT RET ADD ELE (flaring)
Rhomboids nerve
Dorsal Scapular nerve
Levator Scapula origin
TPs C1-C4
Levator Scapula insertion
Superior angle
upper Medial Border
Levator Scapula action
unilateral:
down ROT
ELE
latFLX head/neck
bilateral: EXT head/neck
Levator Scapula nerve
Dorsal Scapular nerve
Serratus Anterior origin
upper 8 or 9 ribs
Serratus Anterior insertion
anterior Medial Border
Serratus Anterior action
PRO
ABD Scap
respiration
(winging)
Serratus Anterior nerve
Long Thoracic nerve
Pectoralis Major origin
Med 1/2 clav
Sternum
Ribs 1-6
Pec Major insertion
lat Crest of GT
Pec Major action
ADD
MR
upper fibers: FLX , MR , hzADD
Lower fibers : EXT , ADD
Pec Major nerve
Pectoral nerves
Pectoralis Minor origin
Ribs 3-5
Pec Minor insertion
Corocoid process
Subclavius insertion
inf med Clavicle
Subclavius action
Draws clavicle down & forward
Elevate 1st rib
Subclavius origin
1st rib & cartilage
Pec Minor action
PRO
DEP
ABD Scap
tilt anteriorly
Pec Minor nerve
Medial pectoral nerve
Subclavius nerve
5th & 6th cervical nerves
Biceps Brachii origin
long head : sup. GT
short head : corocoid process
Biceps Brachii insertion
Radial tuberosity
Brachial aponeurosis
Biceps Brachii action
Supinate FLX elbow (HU) FLX shoulder (GH)
Biceps Brachii nerve
Musculocutaneous