Brainscape's Knowledge GenomeTM

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


See full index

MSK Final > Introduction to Upper Extremity and Superficial Back > Flashcards

Introduction to Upper Extremity and Superficial Back Flashcards

1
Q

the pectoral girdle consists of

A

clavicle

scapula

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

Major features of the scapula

A 
spine 
coracoid process 
acromian process 
supraspinatous fossa 
subscapular fossa 
glenoid fossa 
superior and inferior angles
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

sternoclavicular joint

A

anterior/posterior sternoclavicular ligaments
articular disc with two separate synovial cavities
only joint connecting upper limb to axial skeleton

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

Acromioclavicular joint

A

synovial joint
superior and inferior acromioclavicular ligaments
other ligaments connect clavicle to coracoid process of scapula

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

layer one of superficial hypaxial muscles of the back

A

trapezius

latissimus dorsi

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

layer two of hypaxial muscles of the back

A

levator scapulae
rhomboid minor
rhomboid major

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

Trapezius muscle

A

origin - medial 1/3 of superior nuchal line, external occipital protruberance, nuchal ligament, spinous process of C7-T12
Insertion - lateral 1/3 clavicle, acromion and scapular spine
Innervation: Spinal Accessory Nerve (CN XI)
Actions: Elevation, Retraction, Upward Rotation

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

Latissimus Dorsi

A

Origin - spinous processes T7-12, Thoracolumbar fascia, iliac crest, inferior 3-4 ribs
Insertion - floor of intertubercular sulcus of humerus ANTERIOR SURFACE OF HUMERUS
Innervation - thoracodosal nerve (C6-C8)

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

levator scapulae

A

origin - transverse process of C1-C4
Insertion - medial superior scapula
Innervation - dorsal scapular nerve (C5) cervical spine nerves (C3,C4)
Actions - elevates and rotates scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Rhomboid minor

A

origin - nuchal ligament, C7, T1 spinous process
Insertion - medial scapular at spine border
innervation - dorsal scapular n
actions - elevates, retracts, downward rotation of scapula

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

rhomboid major

A

origin - spinous processes T2-T5
Insertion - medial scapular border
Innervation - dorsal scapular n
Action - elevates, retracts, downward rotation of scapula

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

ventral rami innervate

A

hypaxial muscles

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

rotator cuff muscles

A

Supraspinatus - abduction of arm 1-15 degrees (supraspinatus n)
Infraspinatus - laterally rotates arm (suparspinatus n)
Teres minor - laterally rotates arm (axillary n)
Subscapularis - medially rotates arm (subscapularis n)

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

nuchal ligament

A

very strong ligament that runs along the spinal processes of cervical vertebrae
contains a lot of elastin

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

triangle of auscultation borders and use

A

Borders - trapezius, latissimus dorsi, medial scapular border
easier to hear breathing sounds

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

quadrangular space borders and contents

A

borders - teres minor, humerus, long head of triceps

contents - axillary n, posterior humeral circumflex a

17
Q

triangular hiatus

A

borders - teres major insertion, humerus, long head of triceps
contents - radial n, deep brachial a

18
Q

arteries in scapular anastomoses

A

Ss Ds Cs
PT
suprascapular a (fropm thyrocervical trunk)
Dorsal scapular a (deep branch of transverse cervical a or subclavian a)
circumflex scapular a
Posterior intercostal a (from thoracic aorta)
thoracodorsal a

19
Q

suprascapular artery and nerve are separated by

A

superior transverse scapular ligament

20
Q

which rotator cuff muscle is most frequently injured in patients 55+

A

supraspinatus

because the blood supply to the tendon has been compromised

21
Q

supraspinatus inserts on

A

the greater tubercle of the humerus

22
Q

infraspinatus inserts on

A

the greater tubercle of the humerus posterior to glenohumeral joint (making it a lateral rotater)

23
Q

teres minor inserts on

A

greater tubercle of the humerus posterior to the glenohumeral joint (making it a lateral rotater)

24
Q

subscapularis is the only rotator cuff muscle that attaches

A

anterior to the glenohumeral joint (at the lesser tubercle) making it a medial rotater of the humerus

25
Q

which rotater cuff muscle is most commonly damagedi in young adults?

A

subscapularis

26
Q

elevators of scapula

A

levaetor scapulae (most powerful)
superior trapezius
rhomboids

27
Q

depressors of scapula

A

pectoralis minor
serratus anterior (inferior part)
inferior trapezius

28
Q

protractors of scapula

A

pectoralis minor

serratus anterior

29
Q

retractors of scapula

A

rhomboids
middle trapezius
latissimus dorsi

30
Q

winging of the scapula refers to

A

serratus anterior failing to hold the scapula tight to the body while raising the arms?

31
Q

muscles that elevate with superior (upward) rotation of glenoid fossa

A

superior trapezius
inferior trapezius
serratus anterior (inferior part)

32
Q

muscles that depress the scapula with inferior (downward) rotation of glenoid fossa

A

levator scapulae
rhomboids
latissimus dorsi

MSK Final (21 decks)

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