Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

701 Anatomy > Unit 3 Pectoral girdle and shoulder > Flashcards

Unit 3 Pectoral girdle and shoulder Flashcards

1
Q

overview of the upper limb - 4 segments

A

shoulder
arm
forearm
hand

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

what’s part of the shoulder segment

A

pectoral
scapular
deltoid regions

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

what’s part of the arm segment

A

also known as brachium
- first segment of free upper limb, between shoulder and elbow

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

what’s part of the forearm segment

A

also known as antebrachium
- between elbow and wrist

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

whats part of the hand segment

A

also called manus
- includes the wrist, palm, dorsal of the hand and digits

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

what is your pectoral made of and the characteristics of it

A
  • made of clavicle and scapula
  • incomplete ring
  • mobility of scapula allows for free movement of UL
  • clavicle = strut
  • joints include articulations of the clavicle: sternoclavicular and acromioclavicular
  • contrast the pectoral and pelvic girdles
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what articulates with the clavicle

A

sterncolavicular and acromioclavicular

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

characteristics of the sternoclavicular joint

A
  • strong, mobile
  • synovial, saddle joint
    -sternal end of clavicle with manubrium and 1st costal cartilage
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

sternoclavicular joint is strengthened by

A
  • anterior/posterior sternoclavicular lig.
  • costoclavicular lig
  • interclavicular lig
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

blood supply to the sternoclavicular joint

A

internal thoracic and branches of thyrocervical trunk
- axillary artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

innervation to sternoclavicular joint

A

medial supraclavicular nerve (mostly cutaneous) and nerve to subclavius

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

nerve to subclavius

A

C5-C6

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

most common dislocation for SC (posterior or anterior)

A

anterior

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

subclavius muscle main purpose is to? origin, insertion, etc

A

steady the clavicle in the SC joint
O: first rib
I: inferior surface of clavicle
Inn: nerve to subclavius
Blood: thoracoacromial artery (clavicular branch)

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

characteristics of acromioclaviuclar joint (AC)

A

-synovia, plane joint
- acromion of scapula and acromial end of clavicle
- movement of scapula

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

what strengthened the acromioclavicular joint

A

joint is strengthen by extrinsic ligaments
- coracoclavicular ligament: conoid ligament, trapezoid ligament
- acromioclavicular ligament

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

main purpose of coracoclavicular ligament? its made up of?

A
  • anchor the clavicle to the coracoid process
  • made up of conoid ligament and trapezoid ligament
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what is the blood supply to AC joint

A

supra scapular and thoracoacromial arteries

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

nerve innervation of AC joint

A

lateral pectoral and axillary nerves

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

coracoacromial arch is made of

A
  • made by the coracoacromial ligament
  • subacromial bursa in subacromial space
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

where is the site of bursitis and shoulder impingement ?

A

subacromial bursa in subacromial space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

what is most needed for activities when arm is overhead?

A

subacromial bursa

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

characteristics of glenohumeral joint

A
  • synovial, ball and socket joint
  • very mobile, less stable
  • loose, fibrous joint capsule
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

humeral head of glenohumeral joint articulates with?

and 1/3 of its head sits?

A

1) glenoid cavity
2) sits in the vanity due to glenoid labrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
the loose, fibrous joint capsule of glenohumeral joint allows?
-opening for tendon of long head of biceps brachia - opening inferior to coracoid process, communication between bursa and synovial membrane
26
blood supply for glenohumeral joint
anterior and posterior humeral circumflex arteries and branches of suprascapular artery
27
nerve innervation of glenohumeral joint
suprascapular nerve, axillary nerve, lateral pectoral nerve
28
the axillary nerve may be injured in a shoulder dislocation. How would you know if this nerve is injured?
weakness contraction of deltoid (numbness)
29
rotator cuff muscles
SITS supraspinatus infraspinatus teres minor subscapularis
30
what is supported by the rotator cuff muscles
glenohumeral joint capsule
31
what muscles attach to the scapula and humerus?
scapulohumeral muscles
32
true or false: your labrum gets a good amount of blood supply?
false; little blood supply
33
of the rotator cuff muscles, which one is the most likely to get a strain?
subscapularis
34
true or false: glenoid labrum help decrease surface area?
false: increase of surface area
35
supraspinatus
O: supraspinous fossa I:greater tubercle of humerus - abducts the arm 0-15 degree Inn: suprascaupar nerve
36
infraspinatus
O: infraspinous fossa I: Greater tubercle of humerus - ER Inn: suprascapular nerve
37
teres minor
O: lateral border of scapula I: greater tubercle of humerus - ER, some adduction Inn: axillary nerve
38
subscapularis
O: subscapular fossa I: lesser tubercle of humerus - IR - upper and lower sub scapular nerves
39
medial rotation of the upper limb muscles
-subscapularis -pectoralis major - teres major - latissimus dorsi
40
what innervates subscapularis
upper and lower subscaupular nerves
41
what innervates pectoralis major
medial and lateral pectoral nerves
42
what innervates teres major
lower subscapular nerve
43
what innervate latissimus dorsi
thoracodorsal nerve
44
lateral rotation of upper limb muscles
infraspinatus and teres minor
45
what innervates infraspinatus
suprascapular nerve
46
what innervates teres minor
axillary nerve
47
scapulohumeral muscles
-attachments are at the scapula and humerus - include the rotator cuff muscles
48
deltoid
O: lateral 1/3 of clavicle, acromion and scapular spine I: Deltoid tuberosity of humerus Inn: axillary nerve
49
clavicular portion of deltoid -actions
flexion IR adduction
50
acromial portion of deltoid - action
abduction
51
spinous portion of deltoid - actions
extension ER adduction
52
teres major
O: posterior surface of interior angle of scapula I:crest of lesser tubercle of humerus A: adducts, internally rotates and extends arm Inn: lower subscapular nerve
53
abduction of the upper limb 0-15degree
supraspinatrus (suprascapular nerve)
54
abduction of the upper limb 15-90 degree
deltoid (axillary nerve)
55
abduction of the upper limb 90-160 degree
trapezius (CN11)
56
abduction of the upper limb 160-180degree
seratus anterior (long thoracic nerve)
57
axillary nerve - motor innervation
deltoid muscle teres minor lateral head of triceps brachii
58
axillary nerve - sensory
glenohumeral joint skin of the shoulder region
59
muscles attaching the clavicle
pectoralis major upper trapezius anterior portion of deltoid sternocleidomastoid subclavius
60
muscles attaching anterior scapula
pectoralis major subscapularis serratus anterior biceps brachii - short coracobrachialis
61
muscles attaching posterior scapula
levator scapula rhomboid major/minor trapezius deltoid - acromial/spinous part supraspinatus infraspinatus teres major/minor latissimus dorsi -scapular portion triceps brachii-long
62
movements of the shoulder (glenohumeral joint)
flexion/extension adduction/abudction internal/external rotation
63
movement of the scapula (scapulothoracic joint)
elevation/depression protraction/retraction upward/downward rotation
64
lateral and posterior of shoulder pain results in which nerve?
axillary nerve
65
name the three spaces of posterior shoulder
quadrangular space triangular space triceps hiatus
66
what comes out from the quadrangular space
-axillary nerve -posterior humeral circumflex artery
67
what comes out from triangular space
circumflex scapular artery
68
what comes out of triceps hiatus
- radial nerve - deep brachial artery
69
triangle of auscultation boundaries
- latissimus dorsi (inferior) - trapezius (superior) - rhomboid major (lateral) good place to listen for breath sounds
70
you can have a scapular foramen if this ligament becomes ossified
superior transverse scapular ligament

701 Anatomy (18 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions