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Anterior Arm
and Forearm
158
Anatomy
Graduate
09/22/2014

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Term
Cubital fossa
Definition
triangular recess in front of elbow
Term
borders of cubital fossa: lateral
Definition
brachioradialis
Term
borders of cubital fossa: medial
Definition
pronator teres
Term
borders of cubital fossa: imaginary line joining
Definition
lateral and medial epicondyles of humerus
Term
cubital fossa features: nerves
Definition
median, radial
Term
median n spinal levels
Definition
c5-t1
Term
radial n levels
Definition
c5-t1
Term
what tendon inserts into the cubital fossa
Definition
biceps brachii
Term
cubital fossa: the brachial artery splits into
Definition
radial and ulnar aa
Term
cubital fossa: what vein connects the basilic and cephalic vv
Definition
subcutaneous median cubital
Term
what are the 3 palpations of the cubital fossa
Definition
biceps tendon, brachial artery, median nerve
Term
the biceps tendon can be palpated
Definition
in middle of fossa
Term
brachial artery can be palpated
Definition
medial to biceps tendon
Term
median nerve can be palpated
Definition
medial to brachial artery
Term
the fascial compartments are divided as what
Definition
anterior (flexor) and posterior (extensor)
Term
what divide the upper limb into the anterior and posterior compartments
Definition
lateral and medial septa
Term
Tendons of all extensor and flexor mm of forearm are prevented from bowstringing by what
Definition
flexor and extensor retinacula
Term
coracoid process serves as an attachment for what
Definition
coracobrachialis, biceps short head
Term
supraglenoid tubercle serves as an attachment for what
Definition
biceps brachii long head
Term
infraglenoid tubercle serves as an attachment for what
Definition
long head of triceps brachii
Term
the spiral (Radial) groove of the humerus serves as a passage for what
Definition
radial n and profunda brachii
Term
the lateral epicondyle serves as an attachmetn for what
Definition
common extensor tendon
Term
the medial epicondyle serves as an attachment for what
Definition
common flexor tendon
Term
what provides anchorage for septa?
Definition
lateral and medial supracondylar ridges
Term
what articulates with the head of the radius
Definition
capitulum
Term
what articulates with the olecranon of the ulna
Definition
trochlea
Term
What receives the olecranon of ulna when the forearm extends
Definition
olecranon fossa
Term
Which is the lateral bone of the forearm (anatomical position)
Definition
radius
Term
which is the medial bone of the forearm (anatomical position)
Definition
ulna
Term
what articulates with the capitulum of the humerus and the radial notch of the unla
Definition
head of the radius
Term
What attaches at the radial tuberosity
Definition
biceps brachii
Term
the styloid process of the radius serves as an attachment for what?
Definition
radial collateral ligament of wrist
Term
colles fracture
Definition
fracture of the styloid process of the radius
Term
which forearm bone is longer the radius or ulna? why?
Definition
radius, styloid process is longer
Term
what feature of the ulna is a prominence of the elbow
Definition
olecranon
Term
the olecranon serves as an attachment for what?
Definition
triceps brachii
Term
the semilunar (trochlear) notch articulates with what
Definition
trochlea of humerus
Term
the coronoid processs serves as an attachment site for what
Definition
brachialis mm
Term
the coronoid process is a feature of what
Definition
anterior lip of trochlear notch
Term
the ulnar tuberosity is an attachment site for what
Definition
brachialis mm
Term
the purpose of the radial notch of the ulna
Definition
recieve head of radius
Term
bony features of the scapula (3)
Definition
coracoid process, supraglenoid tubercle, infraglenoid tubercle
Term
bony features of teh humerus (8)
Definition
spiral (radial) groove, lateral epicondyle, medial epicondyle, lateral supracondylar ridge, medial supracondylar ridge, capitulum, trochlea, olecranon fossa
Term
bony features of the radius (3)
Definition
head, radial tuberosity, styloid process
Term
bony features of the ulna (7)
Definition
olecranon, semilunar (trochlear) notch, coronoid process, ulnar tuberosity, radial notch, head, styloid process
Term
the head of the ulna articulates with what
Definition
wrist
Term
What permits the ulna to deviate more than the radius
Definition
articular disc
Term
The styloid process of the ulna serves as an attachment for what
Definition
ulnar collateral ligament of wrist
Term
what are the major arteries of the upper limb (4)
Definition
brachial, deep brachia (profunda brachii), radial, ulnar
Term
The brachial artery is a continuation of what artery?
Definition
axillary
Term
Where does the axillary artery become the brachial artery?
Definition
inferior border of teres major
Term
the brachial artery ends as what?
Definition
radial and ulnar aa
Term
other branches of teh brachial artery include (4) others
Definition
deep brachial (profuna brachii), superior and inferior ulnar collateral aa, muscular branches to ant. arm
Term
the deep brachial (profunda brachii) is a branch of what
Definition
brachial aa
Term
the profunda brachii follows what in the spiral groove on the posterior humerus
Definition
radial n
Term
the profunda brachii follows the radial n through what on the posterior humerus
Definition
spiral groove
Term
the profunda brachii continues as what
Definition
radial collateral aa
Term
the radial collateral aa joins what at the elbow
Definition
lateral anastomosis
Term
the radial collateral aa joins the lateral anastomosis to supply what
Definition
triceps
Term
the radial artery is a terminal branch of what arteries
Definition
brachial, lateral aa of forearm
Term
the radial artery is _______  to the styloid porcess
Definition
superficial
Term
The radial artery passes ______ to the anatomical snuffbox
Definition
posteriorly
Term
The radial artery ends as what in the hand
Definition
arterial arches
Term
What branch of the radial artery joins the anastomsois at the elbow
Definition
radial recurrent
Term
the ulnar artery is a terminal branch of what arteries
Definition
brachial, medial artery of forearms
Term
the ulnar artery ends as what in the hands
Definition
arterial arches
Term
What are the 4 main branches of the ulnar artery
Definition
common interosseous artery, anterior ulnar recurrent, posterior ulnar recurrent, recurrent interosseous
Term
The anterior and posterior ulnar recurrent aa & reccurent interosseous aa join what at the elbow
Definition
anastomosis
Term
the common interosseous aa gives off these 2 branches
Definition
anterior and posterior interosseous
Term
what do the anterior and posterior interosseous aa branches supply
Definition
deep structures of anterior and posterior forearm
Term
the anterior and posterior interosseous aa are adjacent to what
Definition
interosseous membrane
Term
path of the cephalic v
Definition
ascends lateral aspect of upper limb from dorsal venous arch of hand, transverses deltopectoral triangle into axillary v
Term
basic v becomes what
Definition
axillary v
Term
basilic v path
Definition
ascends medial, passes deeply
Term
veins of cubital fossa are a popular site for what
Definition
phlebotomy
Term
standard arrangement of the veins of the cubital fossa: median cubital v
Definition
ascends obliquely across cubital fossa to basilic v
Term
what is a common variation of the median cubital vv
Definition
y-shaped union of median cephalic, median basiclic, and median antebrachial vv
Term
what muscles are supplied by the musculocutaneous nn
Definition
coracobrachialis, biceps brachii, brachialis
Term
spinals lvls of the musculocutaneous nn
Definition
c5-c7
Term
actions of the coracobrachialis
Definition
flexion & adduction of humerus at shoulder
Term
coracobrachialis origin
Definition
coracoid process of scapula
Term
corachobrachialis insertion
Definition
medial border of mid-humerus
Term
biceps brachii origin: short head
Definition
coracoid process of the scapula
Term
biceps brachii origin: long head
Definition
supraglenoid tubercle of scapula
Term
biceps brachii insertion
Definition
radial tuberosity and bicipital aponeurosis
Term
what does the bicipital aponeurosis protect
Definition
median nn and brachial aa
Term
biceps brachii actions
Definition
flexion at elbow, supination against load, some flexion at shoulder
Term
brachialis: origin
Definition
front of humerus
Term
brachialis insertion
Definition
ulnar tuberosity and coronoid process of ulna
Term
brachialis actions
Definition
flexion of forearm at elbow
Term
brachioradialis origin
Definition
lateral supracondylar ridge
Term
brachioradialis insertion
Definition
styloid process of radius
Term
brachioradialis action
Definition
flexion of forearm at elbow
Term
brachioradialis innervation
Definition
radial n
Term
radial n spinal levels
Definition
c5-t1
Term
superficial mm of anterior compartment of forearm
Definition
pronator teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris
Term
the superficial muscles of the anterior compartment of the forearm are all innervated by the median nn except for what
Definition
flexor carpi ulnaris
Term
spinal lvls of the median n
Definition
c5-t1
Term
spinal lvls of the ulnar nn
Definition
c8-t1
Term
all of the superficial mm of the anterior compartment of the forearm have an origin where
Definition
medial epicondyle of humerus via common flexor tendon
Term
pronator teres origin
Definition
medial epicondyle of humeres via common flexor tendon
Term
flexor carpi radialis origin
Definition
medial epicondyle of humeres via common flexor tendon
Term
palmaris longus origin
Definition
medial epicondyle of humeres via common flexor tendon
Term
flexor carpi ulnaris origin
Definition
medial epicondyle of humeres via common flexor tendon
Term
pronator teres insertion
Definition
attaches at midportion of lateral border of radius
Term
pronator teres action
Definition
pronation
Term
flexor carpi radialis insertion
Definition
attachment at base of second metacarpal of hand
Term
flexor carpi radialis action
Definition
flexion of hand at wrist, radial deviation
Term
Palmaris longus insertion
Definition
attachment at palmar aponeurosis
Term
palmaris longus action
Definition
flexion of hand at wrist
Term
flexor carpi ulnaris innervation
Definition
ulnar nn
Term
pronator teres innervation
Definition
median nn
Term
flexor carpi radialis innervation
Definition
median nn
Term
palmaris longus innervation
Definition
median nn
Term
flexor carpi ulnaris innervation
Definition
ulnar nn
Term
What are the muscles of the intermediate layer of the forearm?
Definition
flexor digitorum superficialis,
Term
the humeral head of the flexor digitorum superficialis attaches where
Definition
medial epicondyle, ulnar colalteral igament, coronoid process
Term
radial head of flexor digitorum superficialis
Definition
superior anterior border of radius
Term
the distal attachment for the flexor digitorum superficilais is
Definition
middle phalanx of digits 2-5 at MCP and PIP joints
Term
what are the muscles of the deep layer of the anterior forearm
Definition
flexor digitorum profundus, flexor pollicis longus, pronator quadratus
Term
Flexor digitorum profundus origin
Definition
ulna + interosseous membrane
Term
flexor digitorum profundus insertion
Definition
distal phalanx of digits 2-5
Term
flexor digitorum profundus innervation
Definition
median n (lateral portion of mm), ulnar n (medial portion of mm)
Term
flexor digitorum profundus actions
Definition
flexion of hand at wrist and of digits at MCP and all IP
Term
flexor pollicis longus origin
Definition
radius + interosseous membrane
Term
flexor pollicis longus insertion
Definition
distal phalanx of thumb
Term
flexor pollicis longus action
Definition
flexion of phalanges at thumb
Term
pronatur quadratus attachments
Definition
distal ulna to distal radius
Term
pronator quadratus action
Definition
pronatoin
Term
how many joints does the elbow consist of
Definition
3
Term
he 3 joints of the elbow are surrounded by what
Definition
capsular ligament
Term
what are the 3 joints of the elbow
Definition
hinge joint, ball and socket, pivot joint
Term
the hinge joint of the elbow is made up of
Definition
trochlea of the humerus with semilunar(trochlear) notch of ulna
Term
uniaxial limitation of the hinge joint between the trochlea and semilunar notch of the ulna is limited by what
Definition
humeroulnar half
Term
the ball and socket joint of the elbow are made up of
Definition
capitulum of humerus and head of radius
Term
the pivot joint of the elbow joint are made up of
Definition
had of radius and radial notch of ulna
Term
valgus deviation
Definition
abduction
Term
varus deviation
Definition
adduction
Term
what prevents valgus deviation in the elbow joint
Definition
ulnar collateral ligament
Term
what prevents varus deviation in the elbow joint
Definition
radial collateral ligament
Term
what secures the head of the radius in the elbow joint
Definition
annular ligament of radius
Term
What are teh most common elbow dislocations? As a result of what
Definition
posterior, as a result of a fall on an outstretched arm
Term
the radial head _____ against the radial notch of ulna in pivoting type joint
Definition
glides
Term
the radial head glides against the ______ in pivoting type joint
Definition
radial notch of ulna
Term
distal end of radius has ulnar notch which _______ over head of ulna in pronation/supination
Definition
glides
Term
distal end of radius has _______ _______ which glides over head of ulna in pronation/supination
Definition
ulnar notch
Term
distal end of radius has ulnar notch which glides over head of ulna in _______/________
Definition
pronation/supination
Term
the radius and ulna are secured to each other along most of their lengths by what
Definition
interosseous membrane
Term
flexor carpi ulnaris insertion
Definition
pisiform, hook of hamate, base of 5th metacarpal
Term
flexor carpi ulnaris action
Definition
flexion of hand at wrist, ulnar deviation
Term
What tendons would be visible in most people
Definition
flexor carpi radialis, flexor carpi ulnaris
Term
What tendon would not be visible in all people
Definition
palmaris longus
Term
during a colles fracture, what other structure breaks but is not the styloid process of the radius
Definition
ulnar styloid process
Term
nursemaid's elbow
Definition
dislocation of the radius under the annular ligament at the elbow joint
Term
Nursemaid's elbow is more common in which population? Why?
Definition
children due to the laxity of their ligament
Term
Nursemaid's elbow is usually caused by what
Definition
pull to the hand or wrist
Term
Golfer's elbow
Definition
medial epicondylities
Term
how is golfer's elbow caused
Definition
repetetive use of teh flexor muscles or pronation of the forearm
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