Lab terms (muscles of the chest, brachium, antebrachium, shoulder, back) Week 7

pectoralis major

anterior and superficial muscle of the chest, adducts & flexes @ shoulder

pectoralis minor

deep to pectoralis major, draws scapula forward & down

triceps brachii

large muscle on the posterior upper arm, extension @ elbow

biceps brachii

medial and anterior muscle on the upper arm, flexion @ elbow

brachioradialis

laterally on the arm, originates at humerus and goes to styloid process of radius, flexion @ elbow

brachialis

placed more laterally on the arm, deep to the biceps brachii, flexion @ elbow

pronator teres

anterior and deep in the forearm, pronates forearm

palmaris longus

anterior of the forearm, next to flexor carpi radialis on lateral side and flexor carpi ulnaris on medial side, flexion @ wrist (that tendon that 1/10 people are missing)

flexor carpi radialis

next to it laterally is brachioradialis, next to is medially is palmaris longus, flexion and abduction @ wrist

flexor carpi ulnarus

laterally placed on the arm, flexion and adduction @ wrist

flexor digitorum superficialis

deep to flexor carpi radialis and palmaris longus, flexes digits

extensor carpi radialis longus

posterior and more lateral of the forearm, extension & abduction @ wrist

extensor carpi radialis brevis

posterior of the forearm, lateral to extensor carpi radialis longus, extension & abduction @ wrist

extensor carpi ulnaris

posterior and medial on the forearm, extension & adduction @ wrist

extensor digitorum

extends digits 2-5

extensor digiti minimi

extends digit 5

trapezius

muscle on the upper back and neck, named after the diamond shape it gives, elevates, depresses & adducts scapula

deltoid

shoulder muscle, abduction, flexion & extension @ shoulder

teres major

on the back, inferior to teres minor, medial rotation @ shoulder

teres minor

on the back, superior to teres major, sort of reaches onto shoulder, stabilizes the shoulder, lateral rotation @ shoulder

subscapularis

deep in the body, originates from subscapular fossa of scapula, stabilizes the shoulder, medial rotation @ shoulder

infraspinatus

originates from infraspinous fossa of scapula, stabilizes the shoulder, lateral rotation @ shoulder

supraspinatus

originates from supraspinous fossa of scapula, stabilizes the shoulder, abduction @ shoulder

rhomboid major

deep to trapezius, inferior to rhomboid minor, adduction of scapula

rhomboid minor

deep to trapezius, superior to rhomboid major, adduction of scapula

latissimus dorsi

biggest muscle of the back, extension & adduction @ shoulder

sacrospinalis (erector spinae)

helps you stand up straight, superficial to vertebrae, extension of back