Joints of the Upper Limb I Flashcards Preview

Anatomy > Joints of the Upper Limb I > Flashcards

Flashcards in Joints of the Upper Limb I Deck (24):
1

sternoclavicular joint:

___ type joint

only joint b/n the ___ & the ___

clavicle acts as a "strut" holding the ___ away from the ___ to afford the maximum degree of movement

___ (___) divides the joint into two synovial cavities

saddle

upper limb
axial skeleton

upper limb
chest

interarticular disc (fibrocartilage)

2

sternoclavicular joint:
articulation (3)

sternal end of the clavicle
clavicular notch of the manubrium
first costal cartilage

3

sternoclavicular joint:
ligaments:

___ & ___ sternoclavicular ligaments (thickenings of the capsule)

___ ligament: main support for the joint
- ascends from the ___ fib & its costal cartialge to the inferior surface of the ___

anterior & posterior

costoclavicular
- first rib, clavicle

4

sternoclavicular joint:
movements:

forward & backward movement of the clavicle takes place in the (medial/lateral) compartment

elevation & depression take place in the (medial/lateral) compartment

medial

lateral

5

sternoclavicular joint:
sternoclavicular joint injuries:

the strong costoclavicular ligament firmly holds the medial end of the ___ to the ___ costal cartilage & ___ rib

violent forces directed along the clavicle usually result in ___ of the clavicle

clavicle
first costal cartilage
first rib

fracture

6

acromioclavicular joint:

___ type of synovial joint

incomplete ___ (___) projects into the joint

main support of the joint: ___ ligament

plane

articular disc (fibrocartilage composition)

coracoclavicular ligament

7

acromioclavicular joint:
articulation (2)

acromion process of scapula
acromial extremity of clavicle

8

acromioclavicular joint:
coracoclavicular ligament:

from ___ process of ___ to undersurface of ___

largely responsible for supsending the weight of hte ___ & ___ from the ___

coracoid process of scapula
clavicle

scapula
upper limb
clavicle

9

acromioclavicular joint:
acromioclavicular dislocation (shoulder separation):

a minor injury tends to tear the ___ of the joint

more severe blow to shoulder results in tearing of ___

acromion process thrusts beneath the lateral end of the ___, elevating it

shoulder falls away from ___ b/c of weight of the upper limb

displaced outer end of ___ easily palpated

fibrous capsule

coracoclavicular ligament

clavicle

clavicle

clavicle

10

shoulder joint (glenohumeral joint):

___ joint

wide range of ___ gained at expense of ___

___ cavity is deepened by a rim of fibrocartilage: ___

multiaxial ball & socket joint

movement
stability

glenoid
glenoid labrum

11

shoulder joint (glenohumeral joint):
articulation (2)

head of humerus
glenoid cavity of scapula

12

shoulder joint (glenohumeral joint):
articular capsule:

thin & loose to allow a wide range of ___

capsule weakest (superiorly/inferiorly)

apertures in capsule (2)

movement

inferiorly

b/n tubercles of humerus
opening for subscapular bursa

13

shoulder joint (glenohumeral joint):
articular capsule:
apertures in capsule:

b/n tubercles of humerus - for passage of the ___ of the ___

opening for subscapular bursa - continuation of ___ cavity of joint beneath ___ process of ___

tendon
long head of the biceps

synovial cavity
coracoid process of scapula

14

shoulder joint (glenohumeral joint):
ligaments of shoulder joint (4)

glenohumeral ligaments
transverse humeral ligament
coracohumeral ligament
coracoacromial ligament

15

shoulder joint (glenohumeral joint):
ligaments of shoulder joint:
glenohumeral ligaments:

divisions (3)

anterior thickenings of the ___ strengthen the ___ anteriorly

superior
middle
inferior

capsule
capsule

16

shoulder joint (glenohumeral joint):
ligaments of shoulder joint:
transverse humeral ligament:

passes b/n the ___ & ___ tubercles of the ___

converts the ___ groove into a tunnel holding down the ___ & tendon of the ___

greater & lesser tubercles of the humerus

intertubercular groove
synovial sheath
tendon of the long head of the biceps

17

shoulder joint (glenohumeral joint):
ligaments of shoulder joint:

coracohumeral ligament: strengthens the (superior/inferior) part of the ___

coracoacromial ligament: from ___ to ___

superior
capsule

coracoid process
acromion process

18

shoulder joint (glenohumeral joint):
coracoacromial arch:

parts (3)

prevents (superior/inferior) ___ of the ___

coracoid process
coracoacromial ligament
acromion process

superior displacement
head of the humerus

19

shoulder joint (glenohumeral joint):
rotator cuff tendons:

principal support of the ___

tendons (3)

do not support the ___ (superiorly/inferiorly)

shoulder joint

suparspinatous
infraspinatous & teres minor
subscapularis

capsule of the joint
inferiorly

20

shoulder joint (glenohumeral joint):
rotator cuff tendons:

supraspinatous tendon: ___ support

infraspinatous & teres minor tendons: ___ support

subscapularis tendon: ___ support

superior

posterior

anterior

21

shoulder joint (glenohumeral joint):
bursae:

___ located where ___ rub against ___, ___, ___, or ___ to prevent ___

synovial sacs

tendons

bone
ligaments
other tendons
skin

friction

22

shoulder joint (glenohumeral joint):

principal bursae (2)

subscapular bursa
subacromial bursa

23

shoulder joint (glenohumeral joint):
principal bursae:
subscapular bursa:

b/n ___ of the ___ muscle & the ___

communicates w/ the ___ of the ___

tendon of the subscapularis muscle
scapula

capsule of the shoulder joint

24

shoulder joint (glenohumeral joint):
principal bursae:
subacromial bursa:

b/n ___ muscle & ___ tendon

usually does not communicate w/ the ___

deltoid muscle
suprasinatous tendon

capsule of hte shoulder joint

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