Lab 1 Muscle Table

Pec Major

shoulder adduction

medial and lateral pec nerve

clavicle sternum and costal cartilages

humerus

Pec Minor

Scapular protraction

medial pec nerve

ribs 3-5

coracoid process of scapula

Deltoid

Abducts, flexes shoulder

axillary n

clavicle, acromion and spine of scapula

deltoid tuberosity of humerous

serratus anterior

scapular protraction

long thoracic n

ribs 1-9

medial border of scapula

latissiumus dorsi

adducts extends and roates the humerus

thoracodorsal n

spinous process process of T7-T12

Humerus

External Oblique

Flexes and rotates trunk and pressurizes abdomen

ventral rami of T7-T12

Ribs 5-12

ASIS, pubic crest, illiac crest

Diaphragm

Inspiration

Phrenic N

Xiphoid process, ribs 7-12, costal cartilages, L1-L3

Central tendon

Transversus Thorascis

Depresses ribs

adjacent intercostal nn

internal sufrace of sternum

internal surface of ribs 2-6

external interncostal muscle

move ribs superiorly

intercostal nn

inferior border of ribs

superior border of robs

internal intercostal mm

move ribs inferiorily

intercostal nn

inferior border of ribs

superior border of ribs