Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy > Scapular Region and Arm > Flashcards

Scapular Region and Arm Flashcards

1
Q

What are the cutaneous nerves on the medial aspect of the upper limb

A
  • medial brachial cutaneous* nerve joined by the intercostal brachial nerve
  • medial antebrachial cutaneous*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what are the cutaneous nerves on the lateral side of the upper limb?

A

upper lateral cutaneous nerve (branch of the axillary nerve)
lower lateral cutaneous nerve (branch of the radial nerve)
lateral antebrachial cutaneous nerve* (continuation of the musculocutaneous nerve)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what are the cutaneous nerves on the dorsal side of the upper limb?

A

posterior cutaneous nerve of arm (from radial nerve)

dorsal cutaneous nerve of forearm (from radial nerve)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what are the three important named superficial veins in the upper limb

A

cephalic vein
basilic vein
median cubital vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what vein is this?

begins on dorsum of hand, radial/lateral side (thumb side)
ascends on lateral (radial) side of forearm
passes into the deltopectoral triangle
pierces the clavipectoral fascia to join the axillary vein

A

cephalic vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

how are the cephalic vein and the basilic vein related?

A

at the elbow, the cephalic vein sends a venous channel to basilic vein - called medial cubital vein

used for venepuncture
connects basilic and cephalic veins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what vein is this?

begins on dorsum of hand, ulnar/medial side (little finger side)
ascends on medial side of forearm
above elbow: pierces deep fascia and joins brachial vein to form axillary vein

A

basilic vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

where do the basilic vein and cephalic vein originate from?

A

dorsal venous arch on the dorsum of the hand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what are the three types of deep fascia of the arm and what do they contain?

A
  • brachial fascia: covers the muscles of the arm
  • lateral and medial intermuscular septa: separate arm muscles into anterior and posterior compartments
  • medial intermuscular septum: composed of two laminae; provides passage for brachial vessels, median nerve, basilic vein, and medial antebrachial cutaneous nerve
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

which muscles insert on the upper humerus?

A 
pectoralis major 
pectoralis minor
deltoid 
latissimus dorsi
teres major
[rotator cuff muscles] 
supraspinatus 
infraspinatus
teres minor
subscapularis
coracobrachialis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

where do these muscles insert?

pectoralis major 
pectoralis minor
deltoid 
latissimus dorsi
teres major
[rotator cuff muscles] 
supraspinatus 
infraspinatus
teres minor
subscapularis
coracobrachialis
A

upper humerus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what forms the quadrangular space?

A

humerus
teres major
teres minor
long head of triceps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what do these components form?

humerus
teres major
teres minor
long head of triceps

A

quadrangular space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what passes through the quadrangular space?

A

posterior humeral circumflex vessels

axillary nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what forms the triangular space?

A

teres major
teres minor
long head of triceps muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what do these components form?

teres major
teres minor
long head of triceps muscle

A

triangular space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what passes through the triangular space?

A

branches of the scapular circumflex vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what forms the triangular interval?

A

long head of triceps muscle
lateral head of triceps
teres major

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what do these components form?

long head of triceps
lateral head of triceps
teres major

A

triangular interval

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what passes through the triangular interval?

A

radial nerve

deep brachial vessels (profunda brachii)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

deltoid muscle =

A 
origin = spine of scapula, lateral acromion, lateral 1/3 of clavicle
insertion = deltoid tuberosity of humerus
innervation = axillary nerve
action = abducts the arm (raises the arm) - very strong after 15 degrees of motion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q 
origin = spine of scapula, lateral acromion, lateral 1/3 of clavicle
insertion = deltoid tuberosity of humerus
innervation = axillary nerve
action = abducts the arm (raises the arm) - very strong after 15 degrees of motion
A

..

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

latissimus dorsi

A 
origin = spinous process of lower thoracic vertebrae, spinous processes of lumbar vertebrae, dorsum of sacrum, iliac crest, lower ribs
inserts = crest of lesser tubercule and intertubercular sulcus of humerus
innervation = thoracodorsal nerve
action = adduction, extension, medial rotation of arm
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q 
origin = spinous process of lower thoracic vertebrae, spinous processes of lumbar vertebrae, dorsum of sacrum, iliac crest, lower ribs
inserts = crest of lesser tubercule and intertubercular sulcus of humerus
innervation = thoracodorsal nerve
action = adduction, extension, medial rotation of arm
A

..

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

teres major

A 
origin = inferior angle and axillary border of scapula
insertion = crest of lesser tubucle of humerus 
innervation = lower scapular nerve
action = adduction, medial rotation of arm
26
Q 
origin = inferior angle and axillary border of scapula
insertion = crest of lesser tubucle of humerus 
innervation = lower scapular nerve
action = adduction, medial rotation of arm
A

…

27
Q

what muscles compose the rotator cuff

A

supraspinatus
infraspinatus
teres minor
subscapularis

28
Q

supraspinatus=

A

posterior aspect of scapula

origin = supraspinatus fossa of scapula
insertion = greater tubercle of humerus
innervation = suprascapular nerve
action = abducts the arm, assists deltoid muscle in full movement
29
Q

posterior aspect of scapula

origin = supraspinatus fossa of scapula
insertion = greater tubercle of humerus
innervation = suprascapular nerve
action = abducts the arm, assists deltoid muscle in full movement
A

supraspinatus

30
Q

infraspinatus =

A

posterior aspect of scapula

origin = infraspinatus fossa of scapula
insertion = greater tubercle of humerus
innervation = suprascapular nerve
action - lateral rotation of arm

31
Q

posterior aspect of scapula

origin = infraspinatus fossa of scapula
insertion = greater tubercle of humerus
innervation = suprascapular nerve
action - lateral rotation of arm

A

infraspinatus

32
Q

teres minor =

A 
origin = lateral border of scapula
insertion = greater tubercle of humerus
innervation = axillary nerve
action = lateral rotation of arm
33
Q 
origin = lateral border of scapula
insertion = greater tubercle of humerus
innervation = axillary nerve
action = lateral rotation of arm
A

teres minor

34
Q

subscapularis

A 
origin = costal surface of scapula 
insertion = lesser tubercle of humerus
innervation = upper and lower subscapular nerves
action = medial rotation of arm
35
Q 
origin = costal surface of scapula 
insertion = lesser tubercle of humerus
innervation = upper and lower subscapular nerves
action = medial rotation of arm
A

supscapularis

36
Q

what muscles are in the anterior compartment of the arm and what nerve innervates them?

A

brachialis
biceps brachii
coracobrachialis

innervated by musculocutaneous nerve

37
Q

coracobrachialis

A 
origin = coracoid process of the scapula
insertion = half way down the medial aspect of humerus 
innervation = musculocutaneous nerve
action = adducts arm
38
Q

biceps brachii

A 
origin = supraglenoid tubercule (long head) of the scapula and the coracoid process of the scapula (short head)
insertion = radial tuberosity 
innervation = musculocutaneous nerve
action = flexes shoulder, flexes forearm at elbow, supinates the forearm
39
Q

brachialis muscle

A 
origin = lower anterior half of humerous
insertion = ulnar tuberosity 
innervation = musculocutaneous nerve
action = flexes forearm at elbow

floor of cubital fossa

40
Q 
origin = coracoid process of the scapula
insertion = half way down the medial aspect of humerus 
innervation = musculocutaneous nerve
action = adducts arm
A

coracobrachialis

41
Q 
origin = supraglenoid tubercule (long head) of the scapula and the coracoid process of the scapula (short head)
insertion = radial tuberosity 
innervation = musculocutaneous nerve
action = flexes shoulder, flexes forearm at elbow, supinates the forearm
A

biceps brachii

42
Q 
origin = lower anterior half of humerous
insertion = ulnar tuberosity 
innervation = musculocutaneous nerve
action = flexes forearm at elbow

floor of cubital fossa

A

brachialis

43
Q

what muscles are in the posterior compartment of the arm?

A

triceps brachii

44
Q

what muscles form the boundary of the cubital fossa?

A

brachioradialis

pronator teres

45
Q

triceps brachii

A

3 heads - long, lateral, medial

origin = infraglenoid tubercle of scapula (long head), upper half of humerus (lateral head), lower half of humerus (medial head)
insertion = olecranon process of ulna
innervation = radial nerve
action = extends forearm at elbow, extends shoulder
46
Q

brachioradialis

A 
origin = lateral supracondylar line/ridge of humerus 
insertion = near styloid process of radius 
innervation = radial nerve
action = flexes forearm at elbow

-part of the extensor group of muscles in the upper limb

47
Q

pronator teres

A

2 heads

origin = superficial head of medial epicondyle of humerus, deep head from medial side of coronoid process of ulna 
insertion = midpoint of radial shaft
innervation = median nerve
action = pronates forearm (palm down)
48
Q

3 heads - long, lateral, medial

origin = infraglenoid tubercle of scapula (long head), upper half of humerus (lateral head), lower half of humerus (medial head)
insertion = olecranon process of ulna
innervation = radial nerve
action = extends forearm at elbow, extends shoulder
A

triceps brachii

49
Q 
origin = lateral supracondylar line/ridge of humerus 
insertion = near styloid process of radius 
innervation = radial nerve
action = flexes forearm at elbow

-part of the extensor group of muscles in the upper limb

A

brachioradialis

50
Q

2 heads

origin = superficial head of medial epicondyle of humerus, deep head from medial side of coronoid process of ulna 
insertion = midpoint of radial shaft
innervation = median nerve
action = pronates forearm (palm down)
A

pronator teres

one of 8 flexor muscles in the forearm

51
Q

suprascapular nerve

fibers from which roots?
where does this nerve branch off the brachial plexus?
what vessel does it travel with?
where does it travel?
what does it innervate?
A

fibers from C5,C6

branches off the superior root of brachial plexus

travels with suprascapular artery from the thyrocervical trunk of the subclavian artery

travels = through the scapular notch, deep to the superior transverse ligament, under supraspinatus and infraspinatus muscles

innervates = supraspinatus and infraspinatus

52
Q

axillary nerve

fibers from which roots?
where does this nerve branch off the brachial plexus?
what vessel does it travel with?
where does it travel?
what does it innervate?
A

fibers from C5, C6

one of the terminal branches of the brachial plexus, branches off the posterior cord

travels with the posterior humeral circumflex artery

travels through the quadrangular space

innervates the teres minor and deltoid muscles

53
Q

radial nerve

fibers from which roots?
where does this nerve branch off the brachial plexus?
what vessel does it travel with?
where does it travel?
what does it innervate?
A

fibers from C5-T1

largest terminal branch of the brachial plexus, comes off the posterior cord

travels with the deep brachial vessels (profundus brachii)

travels along the radial sulcus of the humerous under the triceps brachii, through the triangular interval to reach the lateral intermuscular septum, into lateral wall of cubital fossa

supplies the muscles on the dorsal side of arm and forearm

54
Q

musculocutaneous nerve

fibers from which roots?
where does this nerve branch off the brachial plexus?
what vessel does it travel with?
where does it travel?
what does it innervate?
A

fibers from C5, C6

terminal branch of brachial plexus, comes off the lateral cord

terminal portion (lateral antebrachial cutaneous) travels with the cephalic vein

travels through or on top of the coracobrachialis, then between the biceps brachii and brachialis, then sensor fibers continue as the lateral antebrachial cutaneous nerve with the cephalic vein

supplies coracobrachialis, biceps brachii, brachialis

55
Q

median nerve

fibers from which roots?
where does this nerve branch off the brachial plexus?
what vessel does it travel with?
where does it travel?
what does it innervate?
A

fibers from C6-T1

terminal branch of the brachial plexus, comes from merging portions from lateral and medial cords

travels with brachial artery to cubital then ends up medial to brachial artery

goes through the flexor retinaculum

supplies 6 1/2 of flexor muscles in anterior forearm and 5 muscles in the hand

56
Q

ulnar nerve

fibers from which roots?
where does this nerve branch off the brachial plexus?
what vessel does it travel with?
where does it travel?
what does it innervate?
A

fibers from C8-T1

terminal branch off the brachial plexus, comes from the medial cord

travels with brachial artery down the upper arm, just before the cubital fossa it diverts medially

enters posterior compartment of arm to pass behind medial epicondyle of humerus
does not go through flexor retinaculum

supplies 1 1/2 flexor muscles in the anterior forearm and all muscles in hand not supplied by median nerve

57
Q

fibers from C5,C6

branches off the superior root of brachial plexus

travels with suprascapular artery from the thyrocervical trunk of the subclavian artery

travels = through the scapular notch, deep to the superior transverse ligament, under supraspinatus and infraspinatus muscles

innervates = supraspinatus and infraspinatus

A

suprascapular nerve

58
Q

fibers from C8-T1

terminal branch off the brachial plexus, comes from the medial cord

travels with brachial artery down the upper arm, just before the cubital fossa it diverts medially

enters posterior compartment of arm to pass behind medial epicondyle of humerus
does not go through flexor retinaculum

supplies 1 1/2 flexor muscles in the anterior forearm and all muscles in hand not supplied by median nerve

A

ulnar nerve

59
Q

fibers from C6-T1

terminal branch of the brachial plexus, comes from merging portions from lateral and medial cords

travels with brachial artery to cubital then ends up medial to brachial artery

goes through the flexor retinaculum

supplies 6 1/2 of flexor muscles in anterior forearm and 5 muscles in the hand

A

median nerve

60
Q

fibers from C5, C6

terminal branch of brachial plexus, comes off the lateral cord

terminal portion (lateral antebrachial cutaneous) travels with the cephalic vein

travels through or on top of the coracobrachialis, then between the biceps brachii and brachialis, then sensor fibers continue as the lateral antebrachial cutaneous nerve with the cephalic vein

supplies coracobrachialis, biceps brachii, brachialis

A

musculocutaneous nerve

61
Q

fibers from C5-T1

largest terminal branch of the brachial plexus, comes off the posterior cord

travels with the deep brachial vessels (profundus brachii)

travels along the radial sulcus of the humerous under the triceps brachii, through the triangular interval to reach the lateral intermuscular septum, into lateral wall of cubital fossa

supplies the muscles on the dorsal side of arm and forearm

A

radial nerve

62
Q

fibers from C5, C6

one of the terminal branches of the brachial plexus, branches off the posterior cord

travels with the posterior humeral circumflex artery

travels through the quadrangular space

innervates the teres minor and deltoid muscles

A

axillary nerve

Anatomy (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions