Upper Limb Flashcards
What are the points of attachment for the Biceps Brachii?
Long Head - supraglenoid tubercle
Short Head - coracoid process
attach to the radial tuberosity + bicipital aponeurosis
What are the points of attachment for the coracobrachialis?
the coracoid process
What are the points of attachment for the brachialis?
the coronoid process and ulna tuberosity
What movements do the biceps brachii perform?
arm flexion
forearm flexion
forearm supination
What movements does the coracobrachialis perform?
arm adduction
arm flexion
What movements does the brachialis perform?
forearm flexion
What nerve innervates the coracobrachialis?
musculocutaneous nerve
What nerve innervates the brachialis?
musculocutaneous nerve
What nerve innervates the bicep brachii?
musculocutaneous nerve
What are the attachements of the triceps brachii?
long head attaches to the infraglenoid tubercle and olecranon process
Which head of the triceps brachii crosses the shoulder joint and can perform shoulder joint movements?
the long head
What movements do the triceps brachii perform?
forearm extension
(arm extension)
(arm adduction)
Which nerve innervates the triceps brachii?
radial nerve
What are the attachments for the levator scapulae?
the superior angle of the scapula and the vertebrae in the neck (transverse process)
What movements does the levator scapulae perform?
elevation
downward rotation
What innervates the levator scapulae?
dorsal scapular nerve
What are the attachments of the rhomboid - and +?
attaches to the spinous process and the medial portion of the scapula
What movements do the rhomboids perform?
retraction
downward rotation
What innervates the rhomboids?
dorsal scapular nerve
Where does the subclavius attach?
the clavicle and first rib
What movements does the subclavius perform?
brings clavicle down and forward
What innervates the subclavius?
subclavian nerve
Where does the supraspinatus attach?
lies in the supraspinus fossa
attaches on the superior aspect of the greater tubercle
What innervates the supraspintus?
the suprascapular nerve
What movements does the supraspintatus perform?
initiates abduction
What movements does the infraspinatus perform?
lateral rotation
Where does the infraspinatus attach?
lies in the infraspinous fossa
attaches to middle part of the greater tubercle
What innervates the infraspinatus?
the suprascapular nerve
What movements does the serratus anterior perform?
protraction
upward rotation
What are the attachments of the serratus anterior?
anterior medial border of scapula
attaches on the anterior surface of the first 8 or 9 ribs
What innervates the serratus anterior?
long thoracic nerve
What movements does the subscapularis perform?
adduction
medial rotation
Where does the subscapularis attach?
lies in the subscapular fossa
attaches to lesser tubercle
What innervates the subscapularis?
inferior and superior subscapular nerve
What movements does the latissimus dorsi perform?
medial rotation
adduction
extension
Where does the latissimus dorsi attach?
thoracolumbar attachment
inferior angle of scapula
iliac crest
spinous process
What innverates the latissimus dorsi?
thoracodorsal nerve
What movements does teres + perform?
medial rotation
adduction
What are the attachments of teres +?
lower lateral border of scapula and the inferior angle
medial lip of the bicipital groove
What innervates teres +?
inferior subscapular nerve
What movements does pectoralis + perform?
adduction
medial rotation
flexion
What are the attachments of pectoralis +?
clavicle and sternum
lateral lip of bicipital groove
What innervates pectoralis +?
lateral and medial pectoral nerve
What movements does pectoralis - perform?
depression
protraction
Where are the attachments of pectoralis -?
coracoid process
ribs 3, 4, 5
What innervates pectoralis -?
medial pectoral nerve
What movements does the deltoid perform?
abduction medial rotation lateral rotation flexion extension
Where does the deltoid attach?
acromion process and spine of scapula
deltoid tuberosity of humerus
What innervates the deltoid?
axillary nerve
What movements does teres - perform?
adduction
lateral rotation
Where does teres - attach?
lateral border of scapula
inferior aspect of greater tubercle
What innervates teres - ?
axillary nerve
What movements does the trapezius perform?
elevation
depression
retraction
upward rotation
Where does the trapezius attach?
spine of the scapula
spinous process
What innervates the trapezius?
accessory nerve
What are the seven carpal bones?
trapezoid trapezium scaphoid capitate hamate triqutrum pisiform
What are the six hand joints?
radiocarpal jt carpometacarpophalangeal jt interphalangeal jt proximal interphalangeal jt distal interphalangeal jt
What are the four superficial muscles of the anterior forearm?
pronator teres
flexor carpi radialis
palmaris longus
flexor carpi ulnaris
Where is the common attachment site for the superficial muscles of the anterior forearm?
medial epicondyle
Where does the pronator teres attach and what movements does it perform?
coronoid process
lateral shaft of radius
forearm pronation
forearm flexion
Where does the flexor capri radialis attach and what movements does it perform?
base of 2nd metacarpal
hand abduction
hand flexion
Where does the palmaris longus attach and what movements does it perform?
palmar aponeurosis
hand flexion tighen palmar (fascia) aponeurosis
Where does the flexor carpi ulnaris attach and what movements does it perform?
olecranon
pisiform
hook of hamate
base of 5th metacarpal
hand flexion and adduction
Which nerve innervates the pronator teres, flexor carpi radialis, palmaris longus and flexor carpi ulnaris?
first three is the median nerve
flexor carpi ulnaris is the ulnar nerve
Which muscle makes up the intermediate layer of the anterior forearm?
Flexor Digitorum Superficialis
What are the attachments for flexor digitorum superficialis?
medial epicondyle
coronoid process
anterior radius
bifid on 2nd - 5th phalanges
What action does flexor digitorum superficialis perform?
2nd - 5th digit flexion at:
metacarpophalangeal jt.
proximal intercarpal jt
What nerve innervates the flexor digitorum superficialis?
median nerve
What muscles make up the deep layer of the anterior forearm?
flexor pollicis longus
pronator quadratus
flexor digitorum profundus
What are the attachments for flexor pollicis longus?
anterior radius
interosseous membrane
1st interphalangeal jt
What innervates the flexor pollicis longus?
median nerve (ant. interosseous nerve)
What are the actions of the flexor pollicis longus?
thumb flexion at the
1st metacarpophalangeal jt
1st interphalangeal jt
What are the attachments of the pronator quadratus?
distal/anterior ulna
distal/anterior radius
What innervates the pronator quadratus?
median nerve (ant. interosseous nerve)
What are the actions of the pronator quadratus?
forearm pronation
What are the attachments at the flexor digitorum profundus?
anterior ulna
interosseous membrane
2nd - 5th distal phalanges
What innervates the flexor digitorum produndus?
median nerve for 2nd and 3rd digits
ulnar nerve for 4th and 5th digits
What are the actions of the flexor digitorum profundus?
hand flexion 2nd-5th digit flexion at: metacarpophalangeal jt proximal interphalangeal jt distal interphalangeal jt.
What muscles in the anterior forearm does the median nerve innervate?
pronator teres flexor carpi radialis palmaris longus flexor digitorum superficialis flexor pollicis longus pronator quadratus 1/2 flexor digitorum profundus (2nd + 3rd)
What muscles in the anterior forearm does the ulnar nerve innervate?
flexor carpi ulnaris
1/2 flexor digitorum profundus (4th + 5th)
