MUSCLE ORIGINS & INSERTIONS - Lab 1 & 2

Shoulder, shoulder girdle, head, and neck

Sternocleidomastoid

origin: manubrium, clavicle

insertion: mastoid process

Upper trapezius

origin: occipital protuberance

insertion: clavicle

Middle trapezius

origin: spinous processes of C7-T4

insertion: acromion processes

Lower trapezius

origin: spinous processes of T5-T12 vertebrae

insertion: spine of scapula

Levator scapulae

origin: C1-C4 transverse processes

insertion: superior angle of scapula

Rhomboid minor

origin: C7-T1 spinous processes

insertion: medial border of scapula

Rhomboid major

origin: T2-T5 spinous processes

insertion: medial border of scapula

Pectoralis minor

origin: ribs 3-5

insertion: coracoid process of scapula

Serratus anterior

origin: ribs 1-8

insertion: medial border of scapula

Latissimus dorsi

origin: T7-sacrum spinous processes, lumbar fascia

insertion: intertubercular sulcus

Pectoralis major

origin: clavicle, sternum, ribs 1-7

insertion: intertubercular sulcus

Deltoid

origin: clavicle (anterior), acromion process (middle), scapular spine (posterior)

insertion: deltoid tuberosity

Teres major

origin: posterior surface of scapula at inferior angle

insertion: intertubercular sulcus

Teres minor

origin: lateral border of scapula

insertion: greater tubercle

Supraspinatus

origin: supraspinous fossa

insertion: greater tubercle

Infraspinatus

origin: infraspinous fossa

insertion: greater tubercle

Subscapularis

origin: subscapular fossa

insertion: lesser tubercle