Muscles of the anterior and posterior trunk

Abdominal muscle that helps you flex at the waist

• rectus femoris

• rectus abdominus

• rectus costalis

• liea alba

Functions to extend, adduct and medially rotate the humerus

• teres major

• rhomboid

• latissimus dorsi

• infraspinatus

Indentify this muscle

• sternocleidomastoid

• pectoralis major

• rhomboids

• trapezius

These muscles retracts, elevates and rotates the scpula

• rhomboids

• serratus anterior

• supraspinatus

• teres major

Main shoulder muscle. Aids in lifting your arms up

• biceps brachii

• deltoid

• trapezius

• none of these

Well developed in swimmers

• rectus femoris

• transversus abdominis

• latissimus dorsi

• serratus anterior

Tags

NGSS.MS-LS1-5

Rotator cuff muscle, prevents downward dislocation of the humerus

• infrasinatus

• supraspinatus

• teres major

• teres minor

Prime mover of back extension: a composite muscle consisting of 3 columns

• teres minor

• levator scapulae

• rhomboids

• erector spinae

Prime mover for shoulder flexion and extention

• deltoid

• pectoralis major

• triceps

• platysma

each muscle of this pair turns the head toward the opposite shoulder

• platysma

• sternocleidomastoid

• buccinator

• pectoralis minor