Muscle Movements Flashcards
Movements of biceps brachii
Flexion at shoulder joint
Flexion at elbow joint
Supination at radio-ulnar joint
Innervation of biceps brachii
Musculocutaneous nerve (C5, C6)
Movement of coracobrachialis
Flexion at shoulder joint
Adduction at shoulder joint
Movements of serratus anterior
Scapula abduction (protraction) Lateral rotation of scapula
Movements of pectoralis minor
Scapula abduction
Medial rotation
Movements of rhomboid major and minor
Scapula adduction
Scapula medial rotation
Muscles responsible for scapula abduction
Serratus anterior
Pectoralis minor
Scapula adduction
Middle trapezius muscle fibres
Rhomboid major and minor
Lateral rotation of scapula
Superior and inferior fibres of trapezius
Serratus anterior
Scapula medial rotation
Levator scapula
Rhomboid major and minor
Pectoralis minor
Movements of subscapularis
Medially rotates and
Adducts at shoulder and elbow
Stability
Actions of supraspinatus
Laterally rotates and abducts at humerus
Stability
Actions of infraspinatus
Laterally rotates the arm
Stability
Actions of teres minor
Laterally rotates arm
Weakly adducts arm
Stability
Actions of deltoid
Anterior fibres- flexion and medially rotation of shoulder
Middle fibres- abducts shoulder
Posterior fibres- extension and laterally rotation of shoulder
Actions of pectoralis major
Adducts and medially rotates glenohumeral
Actions of trapezius
Superior-elevates and laterally rotates arm
Middle- retracts and laterally rotates arm
Inferior- depresses scapula
Actions of teres major
Adduction and medially rotates shoulder
Actions of latissimus dorsi
Extension of shoulder
Adduction and medially rotates shoulder
Muscles responsible for adduction of shoulder
Pectoralis major
Teres major
Latissimus dorsi
Subscapularis
Muscles responsible for extension of shoulder
Posterior fibres of deltoid
Latissimus dorsi
Muscles responsible for flexion of shoulder
Anterior fibres of deltoid
Clavicular head of pectoralis major
Coracobrachialis
Muscles responsible for abduction of shoulder
Middle fibres of deltoid
Supraspinatus
Muscles responsible for medial rotation of shoulder
Pectoralis major
Teres minor
Latissimus dorsi
Subscapularis
Muscles responsible for external rotation of shoulder
Teres minor
Infraspinatus
Coracobrachialis movements
Flexion and adduction at shoulder joint
Biceps brachii movements?
Flexion at shoulder and elbow
Supination
Brachialis movements?
Flexion at elbow
Triceps brachii movement
Extension at scapula and elbow
Anconeus movements
Extension at elbow
Abduction of ulna during pronation
What muscles are responsible for flexion at elbow?
Biceps brachii
Brachioradialis
Brachialis
What muscles are responsible for extension at elbow
Triceps brachii
Anconeus muscle
Muscles responsible for supination
Biceps brachii
Supinator
Extensor pollicis longus
Extensor carpi radialis
Muscles responsible for pronation?
Pronator teres Pronator quadratus Brachioradialis Flexor carpi radialis Palmaris longus
What action occurs when extensor and flexor carpi ulnaris work together?
Adduction of wrist
What muscles cause abduction of wrist
Extensor carpi radialis brevis and longus
Flexor carpi radialis
Action of flexor digitorum superficialis
Flexion of wrist
Flexion of proximal interphalangeal joints
Flexes proximal phalangeal at metacarpophalangeal joints