1. Upper limb

2. clavicle

3. scapula

4. humerus

5. Radius and Ulna

6. Hand

7. Muscle
Origin
Insertion
Action NS
Pectoralis major
Clavicular head
Medial ½ of front of clavicle
Sternocastal head
½ breadth of sternum
upper 6 costal Cartilages
Bicipital groove
Adduction shoulder
Med rotation shoulder
Flexion shoulder
Med & lat Pectoral Ns
Pectoralis minor
ribs 2-5 near costal cartilages
Coracoid process
Depression of scapula
protraction of scapula
Subclavius
1st rib
Inf surface of clavicle (subclavian groove)
Fixation of clavicle during shoulder movements
N to subclavius
Serratus anterior
8 digitations from upper 8 ribs
Med border of scapula (ant lip)
1st digit  sup angle
2-3  med border
4-8  inf angle
Up rotation of scapula  elevation of arm > 90°
protraction of scapule
fixation of scapula (paralysis leads to winging of scapula)
N to serratus ant

9. scapular muscles Muscle Origin Insertion action NS Deltoid
lat 1/3 of clavicle (ant border)
acromion (outer border)
crest of spine of scapula (lower border)
Deltoid tuberosity
Abduction (15-90°)
ant fibers: flexion & med rotation
post fibers: extension & lat rotation
Axillary N
Supraspinatus
Supraspinous fossa
Greater tuberosity
Abduction (0-15°)
Suprascapular N
Infraspinatus
Infraspinous fossa
Lat rotation
Adduction
Teres minor
Lat border of scapula (upper 2/3 of post aspect)
Teres major
Post surface of scapula (area above inf angle)
Bicipital groove
Med rotation
Extension
Lower subscapular N
Subscapularis
Subscapular Fossa
Lesser tuberosity
Flexion
Upper & lower subscapular Ns

12. INETERMUSCULAR SPACES
Boundaries
Contents
Sup
Inf
Med
Lat
Quadrangular
Teres minor
Teres major
Triceps
(long head)
Humerus
Axillary N
Upper triangular
Lower tringular
Radial N

13. muscles of the Back Muscle origin Insertion Action NS Trapezius
Sup nuchal line (med 1/3)
External occipital protuberance
Ligamentum nuchae
C7 spine
All thoracic spines
Lat 1/3 of clavicle (post border)
Acromion (med border)
Crest of spine (sup border)
Up rotation of scapula  elevation of arm > 90°
Retraction of scapula
Upper fibers  elevation of scapula
Lower fibers  depression of scapula
Accessory + C3-4
Latissimus dorsi
Iliac crest
Lumbar fascia
Lower 6 thoracic spines
Lower 3 ribs
Inf angle of scapula (post)
Bicipital groove
Adduction
Med rotation
Extension
N to latissimus dorsi
Elevation of trunk to fixed arm
Levator scapulae
C1-4 vertebrae
Med border of scapula (aqbove spine)
Elevation of scapula
N to rhomboides
Rhomboides minor
C7-T1 vertebrae
Med border (at spine )
Elevation of scapula
Retraction of scapula
Down rotation of scapula
Rhomboides major
T2-5 vertebrae
Med border (below spine)