L14 Upper Limb muscles/nerve

What is the primary action of the deltoid?

abduct, flex, and extend shoulder, medially and laterally rotate arm

what is the primary action of the supraspinatus?

abduct shoulder

What muscles are responsible for the extension and adduction of the shoulder?

infraspinatus, teres major, teres minor

What is the primary action of the coracobrachialis

flex and adduct shoulder

what is the primary action of the subscapularis

medially rotate arm

What is the origin of the deltoid muscle

clavicle, acromion, spine of scapula

where is the insertion of the deltoid muscle

deltoid tuberosity

the axillary nerve innervates which muscles

deltoid and teres minor

where is the origin of the supraspinatus

supraspinous fossa

what muscles insert into the greater tubercule

supraspinatus, infraspinatus, teres minor

the suprascapular nerve innervates which muscles

supraspinatus, infraspinatus, subscapularis, teres major

where is the origin of the infraspinatus

infraspinatusfossa

where is the origin of the coracoborachialis

coracoid process

where does the coracobrachialis insert?

medial surface of humerus shaft

what nerve innervates coracobrachialis

musculocutaneous nerve

where is the origin of the subscapularis

subscapular fossa

where does the subscapularis insert

the lesser tubercle

where is the origin of the teres major

posterior surface of scapula

where is the insertion of the teres major

intertubercular sulcus of humerus

where is the origin of the teres minor

lateral border of scapula

where does the teres minor insert

greater tubercle

what are the anterior muscles of the pectoral girdle

subclavius, pectoralis major, pectoralis minor, serratus anterior

what are the posterior muscles of the pectoral girdle

trapezius, rhomboid major, rhomboid minor

the primary actions of the bicep brachii are

elbow flexion and forearm supination

which muscles allow you to flex your elbow

biceps brachii, brachialis, brachioradialis

which muscles allow you to supinate the forearm

biceps brachii, supinator

which muscles allow you to protonate the forearm

pronator quadratus and pronator teres

which muscle allows you to extend the elbow

triceps brachii

where does the biceps brachii originate

coracoid process and supraglenoid tubercle

where does the the biceps brachii insert

radial tuberosity

where does the brachialis originate

anterior surface of distal humerus

where does the brachialis insert

coronoid process of ulna

where does the triceps brachii originate

infraglenoid tubercle, posterior shaft of humerus, distal radial groove

where does the triceps brachii insert

olecranon

where does the brachioradialis originate

lateral supracondylar ridge

where does the brachioradialis insert

styloid process of radius

where does the pronator quadratus originate

distal portion of anterior ulna shaft

where does the pronator quadratus insert

distal surface of anterior radius

where does the pronator teres originate

medial epicondyle of humerus and coronoid process of ulna

where does the pronator teres insert

lateral radius

where does the supinator originate

lateral epicondyle of humerus, proximal ulna

where does the supinator insert

proximal end of radius

which muscles do the musculocutaneous nerve innervate

biceps brachii, brachialis, coracobrachialis

what muscles do the radial nerve innervate

triceps brachii, brachioradialis, supinator, extensor carpi radialis brevis and longus, extensor carpi ulnaris, extensor digitorum, extensor pollicis brevis and longus, abductor pollicis longus

which muscles do the median nerve innervate

pronator quadratus, pronator teres, flexor carpi radialis, palmaris longus, flexor digitorum profundus, flexor digitorum superficialis, flexor pollicis brevis and longus, abductor pollicis brevis

list the superficial anterior compartment of the forearm from lateral to medial

flexor carpi radialis, palmaris longus, flexor carpi ulnaris, flexor digitorum superficialis

what muscles are found in the superficial posterior compartment of the forearm

extensor radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor carpi ulnaris

what are the muscles of the deep compartment of the forearm

abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus

where do the muscles of the superficial posterior compartment of the forearm originate

humerus

where do the muscles of the deep posterior compartment of the forearm originate

the radius and ulna

where do the muscles of the anterior compartment of the forearm originate

humerus and the ulna

retinacula

fibrous bands that sheath the tendons at the wrist

which muscle group makes up the bulk of the forearm

the anterior compartment of the forearm

what is the primary action of the flexor carpi radialis

flex and ABduct wrist

what is the primary action of the flexor carpi ulnaris

flex and ADduct wrist

what is the primary action of both the extensor carpi radialis brevis and extensor carpi radialis longus

extend and ABduct wrist

what is the primary action of the extensor carpi ulnaris

extend and ADDuct wrist

what is the primary action of the palmaris longus

flex wrist

what is the primary action of the flexor digitorum profundus

flex wrist and fingers

what is the primary action of the flexor digitorum superficialis

flex wrist and fingers 2-5

what is the primary action of the extensor digitorum

extend fingers and wrist

which muscles flex the thumb

flexor pollicis brevis and flexor pollicis longus

which muscles extend the thumb

extensor pollicis brevis and extensor pollicis longus

which muscle is responsible for the abduction of the thumb

abductor pollicis brevis

what are the primary actions of the abductor pollicis longus

abduct and extend thumb, abduct wrist

which muscles originate on the medial epicondyle

flexor carpi radialis, flexor carpi ulnaris, palmaris longus, flexor digitorum superficialis

where does the flexor carpi radialis originate

the medial epicondyle

where does the flexor carpi radialis insert

base of 2nd and 3rd metacarpals

where does the flexor carpi ulnaris originate

medial epicondyle, olecranon, posterior surface of ulna

where does the flexor carpi ulnaris insert

pisiform and hamate bones, base of 5th metacarpal

what muscles have an origin on the lateral epicondyle of the humerus

extensor carpi radialis brevis, extensor carpi ulnaris, extensor digitorum

where does the extensor carpi radialis brevis originate

the lateral epicondyle of the humerus

where does the extensor carpi radialis brevis insert

base of the 3rd metacarpal

where does the extensor carpi radialis longus originate

lateral supracondylar ridge of humerus

where does the extensor carpi radialis longus insert

base of the 2nd metacarpal

where does the extensor carpi ulnaris originate

lateral epicondyle of the humerus and posterior border of the ulna

where does the extensor carpi ulnaris insert

base of the 5th metacarpal

where does the palmaris longus originate

medial epicondyle of humerus

where does the palmaris longus insert

palmar aponeurosis, skin and fascia of the palm

where does the flexor digitorum profundus originate

coronoid process, anteromedial surface of ulna, interosseus membrane

where does the flexor digitorum profundus insert

distal phalanges 2-5

where does the flexor digitorum superficialis originate

the medial epicondyle, coronoid process, shaft of radius

where does the flexor digitorum superficialis insert

middle phalanges 2-5

where does the extensor digitorum originate

lateral epicondyle

where does extensor digitorum insert

phalanges 2-5

where does the flexor pollicis brevis originate

flexor retinaculum, trapezium

where does the flexor pollicis brevis insert

lateral base of proximal phalanx of thumb

where does the flexor pollicis longus originate

anterior surface of radius, interosseous membrane

where does the flexor pollicis longus insert

distal phalanx of the thumb

where does the abductor pollicis brevis originate

flexor retinaculum and carpal bones

where do the extensor pollicis brevis and longus originate

the dorsal shaft of the radius and ulna and the interosseous membrane

where does the extensor pollicis brevis insert

the base of the proximal phalanx of the thumb

where does the extensor pollicis longus insert

base of the distal phalanx of thumb

where does the abductor pollicis brevis insert

lateral base of proximal phalanx of thumb

where does abductor pollicis longus originate

posterior surface of radius and ulna and interosseous membrane

where does abductor pollicis longus insert

base of first metacarpal and trapezium

what muscles originate on the interosseous membrane

flexor digitorum profundus, flexor pollicis longus, extensor pollicis brevis and longus, abductor pollicis longus

what muscles does the ulnar nerve innervate

flexor carpi ulnaris

which muscles do both the median and ulnar nerve innervate

flexor digitorum profundus and flexor pollicis brevis

the flexor digitorum superficialis allows

rapid finger movements