API Study Guide Home Page

Muscles of the Arm & Pectoral Girdle

Muscles the Thorax

Movement of the Scapula

anterior

posterior

Pectoralis minor

Trapezius

Pectoralis minor

Trapezius

Serratus anterior

Rhomboids

serratus anterior

rhomboids

 

Muscles Crossing the Shoulder Joint

Pectoralis Major

Latissimus Dorsi

pectoralis major

latissimus dorsi

Deltoid

Coracobrachialis

Deltoid

coracobrachialis

 

Rotator Cuff Muscles

Supraspinatus

Infraspinatus

supraspinatus infraspinatus

Teres Major

 
teres major

 SITS

Supraspinatus
Infraspinatus
Teres major
Subscapularis
 

A pro baseball pitcher has injured his rotator cuff muscles. As a result, he SITS out for the rest of the game.

An injured athlete SITS out.

* Caplan's class currently does not include the subscapularis

 

Muscles Crossing the Elbow Joint

 

Anterior

Posterior

mnemonics

Biceps Brachii

Triceps Brachii

Three B's Bend the elBow:
Brachialis
Biceps
Brachioradialis

biceps brachi

triceps brachii

Bob's Busy Bees

Brachialis
Biceps
Brachioradialis

Brachialis

brachiialis

Brachioradialis

BrachioRadialis:
Function:

Its the Beer Raising muscle, flexes elbow, strongest when wrist is oriented like holding a beer.

brachioradialis

 

Three B's Bend the elBow:
Brachialis
Biceps
Brachioradialis

 

Muscles of the Forearm

Anterior

Posterior

Pronator Teres

Pronator Quadratus

Extensor Carpi Radialis Longus (& Brevis)

pronator teres & pronator quadratus

extensor carpi radialis longus and brevis

Palmaris Longus

Extensor Carpi Ulnaris

palmaris longus

extensor carpi ulnaris

Flexor Carpi Radialis

Supinator

www.montana.edu/craigs/HUMAN%20MUSCLES%20NEW.htm

flexor carpi radialis

supinator

Flexor Carpi Ulnaris

flexor carpi ulnaris

 

 

Muscles for Finger Movement

Flexor Digitorum Superficialis

Extensor Digitorum

flexor digitorum superficialis

extensor digitorum