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MSK > Anatomy 1- Shoulder & pectoral griddle region 1 > Flashcards

Anatomy 1- Shoulder & pectoral griddle region 1 Flashcards

1
Q

what does the cubital region contain

A

cubital median vein

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2
Q

what 3 bones make the pectoral griddle

A

scapula
clavicle
sternum

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3
Q

name 3 functions of the clavicle

A

1- rigid support from which scapula and free limb suspended
2- protection to neurovascular bundle of upper limb
3- transmits shock from upper limb to axial skeleton

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4
Q

which end of the clavicle is rounded and thicker

A

sternal end

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5
Q

which end of the clavicle is flat

A

acromion end

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6
Q

is the anterior medial end of the clavicle concave or convex

A

convex

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7
Q

is the anterior lateral end of the clavicle concave or convex

A

concave

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8
Q

what is the WEAKEST AREA of the clavicle & most common fracture site

A

medial 2/3

lateral 1/3

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9
Q

what rib is at the same level as the superior angle of the scapula

A

rib 2

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10
Q

what rib is at the same level as the inferior angle of the scapula

A

rib 7

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11
Q

what fractures can occur to the scapula (5)

A 
acromial fracture
coracoid process fracture
scapular body fracture
glenoid fracture
scapular winging
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12
Q

at what joint does the hummers and the scapula articulate

A

glenohumeral joint (glenoid process of scapula and head of humerus)

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13
Q

at what joint does the hummers and the radius/ulna articulate

A

elbow joint

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14
Q

most common fracture site of the humerus!!!

A

SURGICAL NECK

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15
Q

what are the 3 joints of the pectoral region

A

sternoclavicular
acromioclavicular
gelenohumeral

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16
Q

what type of joint is the sternoclavicular joint

A

SADDLE- but acts as BALL AND SOCKET

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17
Q

what is the function of the articular disc

A

it divides the sternoclavicular into 2 parts and is a shock absorber

18
Q

how is the sternoclavicular joint strengthened

A

anterior & posterior sternoclavicular ligament
and
interclavicular ligament

19
Q

BLOOD SUPPLY OF STERNOCLAVICULAR JOINT

A
  • INTERNAL THORACIC ARTERY

- SUPRASCAPULAR ARTERY

20
Q

NERVE SUPPLY OF STERNOCLAVICULAR JOINT

A
  • SUPRACLAVICULAR NERVE

- NERVE TO SUBCLAVIUS

21
Q

what is more serious, posterior or anterior dislocation of clavicle

A

posterior

more structures passing

22
Q

what type of joint is the acromioclavicular joint

A

PLANE with fibrocartilage

23
Q

what is the capsule of the acromioclavicular joint strengthened by

A

superior & inferior acromioclavicular ligament
and
coracoclavicular ligament

(the coracoacromion killish malha shgl)

24
Q

BLOOD SUPPLY OF ACROMIOCLAVICULAR JOINT

A
  • SUPRASCAPULAR ARTERY

- THORACOACROMIAL ARTERY

25
Q

NERVE SUPPLY OF ACROMIOCLAVICULAR JOINT

A
  • LATERAL PECTORAL NERVE

- AXILLARY NERVE

26
Q

what is shoulder separation

A

1- dislocation of acromioclavicular joint

2- lesions of anterior&posterior acromioclavicular ligament AND coracoclavicular ligament

27
Q

how can you dislocate the acromioclavicular joint

A

falling laterally on shoulder tip

28
Q

what is more common, dislocation of acromioclavicular joint or sternoclavicular joint

A

ACROMIOCLAVICULAR JOINT!

29
Q

what type of joint is the shoulder (glenohumeral) joint

A

BALL AND SOCKET

30
Q

what is the purpose of the glenoid labrum

A

glenoid cavity is deepened by the glenoid labrum so that 1/3 of the humerus head will fit

31
Q

what is the capsule of the glenohumera joint attached to (medial and lateral)

A

medial: glenoid cavity
lateral: anatomical neck of humerus

32
Q

what is a bursa

A

closed sac filled with synovial fluid to reduce friction between moving surfaces

33
Q

what are the rotator cuff muscles

A

subscapularis muscle
supraspinatous muscle
infraspinatous muscle
teres minor muscle

34
Q

what is the WEAKEST part of the glenohumeral joint capsule

A

inferior part

bcz. no ligament and not rotator cuff

35
Q

what provides a protective arch to prevent humerus dislocation

A

coracoacromial ligament

ely mn sa3 ma kaan la fayda

36
Q

BLOOD SUPPLY OF GLENOHUMERAL JOINT

A

-ANTERIOR & POSTERIOR CIRCUMFLEX ARTERY

37
Q

NERVE SUPPLY OF GLENOHUMERAL JOINT

A
  • SUPRASCAPLAR NERVE
  • AXILLARY NERVE
  • LATERAL PECTORAL NERVE
38
Q

what provides stability to the glenohumeral joint

A

1- muscles
rotator cuff

2- tendons
long head of biceps

3- skeletal
coracoid and acromion (both superior)

4- ligaments
coracoacromial and coracohumeral and glenohumeral

39
Q

what is more common, superior or inferior dislocation of shoulder joint

A

inferior

40
Q

what ligaments support the sternoclavicular joint

A
  • anterior and posterior sternoclavicular ligament

- interclavicular

41
Q

what ligaments support the acromioclavicular joint

A
  • fibers of trapezius
  • superior and inferior acromioclavicular ligaments
  • coracoclavicular ligament
42
Q

what ligaments support the glenohumeral joint

A
  • superior and medial and inferior glenohumeral ligaments
  • coracohumeral ligament
  • coracoacrommial ligament

MSK (6 decks)

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