UE A and P Flashcards
Bones of Upper Extremity (arm-forarm, not wrist/hand)
clavicle
scapula
humerus
radius
serratus anterior
protracts scapula and hold against thorax
rotates scapula
triceps brachii action
extension of elbow
brachialis action
primary flexion of elbow
main blood supply of arm
brachial artery
continuation of axillary artery
flexors of arm
biceps brachii
brachialis
coracobrachialis
extensors of arm
triceps brachii
innervation of flexors of arm
musculocutaneous n.
innervation of extensors of arm
radial nerve
biceps brachii proximal attachment
short head = coracoid process of scapula
long head = supraglenoid tubercle of scapula (intracapsular tendon)
distal attachment of biceps brachii
bicipital tuberosity of radius
biceps brachii nerve supply
musculocutaneous n C 5, C6*, C7
primary supinator of forearm
biceps brachii
only bone in forearm to rotate
radius
thumb side/lateral
proximal articulation of radius
articulates with capitulum of humerus and ulnar notch of ulna
radius distal articulation
with ulna
distal radioulnar joint
annular ligament
holds head of radius firmly in place
ulna proximal articulation
trochlea of humerus
radial head lateral
olecranon process
of ulna
fits in olecranon fossa of posterior humerus
trochlear notch
olecranon of ulna and humerus , coronoid of ulna and humerus
proximal bones of the wrist
PTLS
Pisiform
Triquetrium
Lunate
Scaphoid
distal bones of wrist
HCTT
hamate
capitate
trapezoid
trapezium
bones of hand
metacarpals
phalanx (14 -thumb is only proximal and distal)
joints of hand
Metacarpophalangeal (MCP) proximal interphalangeal (PIP) distal interphalangeal (DIP)
intrinsic muscles of the hand
thenar (thumb)
hypothenar (pinky)
short muscles
sternoclavicular joint (SC)
medial clavicle articulates with sternum
acromioclavicular joint (AC)
lateral clavicle and acromion of scapula articulate
Gelnohumeral joint
humerus articulation with scapula
“shoulder joint”
joints of shoulder girdle
AC
SC
Glenohumeral joint
projections of the humerus
greater tubercle and lesser tubercle
places of muscle attachment
intrinsic muscle of shoulder girdle
rotator cuff (S.I.T.S.)
Supraspinatus
Infraspinatus
Teres minor
Subscapularis
serratus anterior innervation
supplied by long thoracic nerve
if issue = winged scapula
superficial posterior muscles of shoulder
trapezius
trapezius function of fibers (Superior, inferior, middle)
superior fibers elevate scapula
inferior fibers depress scapula
middle fibers retract scapula
posterior deep muscle of shoulder girdle
rhomboids (major, minor)
rhomboids function
retract scapula
rotate scapula to depress glenoid fossa
hold scapula against thorax
supraspinatus function
initiates and assists deltoid in abduction of arm
acts w.other rotator cuff muscles
infraspinatus
laterally rotates arm
acts with other rotator cuff muscles
teres minor
laterally rotates arm
acts with other rotator cuff muscles
subscapularis
medially rotates arm
helps hold head of humerus in glenoid fossa
innervation pectoralis major and minor
lateral and medial pectoral nerves
C5, 6, 7, 8* & T1)
innervation serratus anterior
long thoracic nerve
C5, C6, C7
innervation trapezius
spinal accessory (CN XI motor)
C3 and C4 n. for pain and proprioception
blood supply of the shoulder and arm
supplied from branches off the subclavian, axillary, or brachial arteries
Golfer’s elbow
flexors/pronators of forearm attach to medial epicondyle of humerus
tennis elbow
extensors/supinators attach to lateral epicondyle of humerus
innervation of forearm
anterior compartment
supplied by median nerve
innervation of forearm
posterior compartment
posterior interosseous nerve
innervation of the hand
cervical nerve roots (C6, 7, 8)
peripheral nerves (radial, median, and ulnar supply all surfaces of the hand)
C6 of hand
thumb
C7 of hand
medial fingers
C8 of hand
pink fingers