Shoulder Joint Flashcards
the———- joint has the highest range of motion in the body
Glenohumeral
Sternoclavicular joint
- _____/____ type of movement
- modified______ joint
- mobile in——- and——- plane
- limited in the——- plane
arthroidal/gliding
ball and socket
frontal; transverse
sagittal
Glenohumeral joint:
- includes a shallow____(that contains about ___of the size of———)
- anterior support is by—-,—— ,——-
- also by——— ligaments
- fibers of—— and——- that blend into the capsule
- posterior support is by——-,——-,fibers from ——and——— that blend into the capsule
glenoid fossa
1/4 ; humeral head
labrum; capsule; GH ligaments; coracohumeral
pec minor; subscapularis
labrum; capsule; teres minor ; infraspinatous
Acromioclavicular joint :
- does ——/—— movements
- AC movements would be opposite of——-
arthrodial:gliding
Sternoclavicular
Acromioclavicular joint has a strong bony support and a dense capsule and ligaments support
T/F
F
Weak bony support
——— joint is the site of most movement of shoulder girdle
Glenohumeral joint
Scapulothoracic joint:
-scapula rests on 2 muscles;——;——-
serratus anterior; subscapularis
Scapulothoracic joint is the joint between —— and —— bone
no bone to bone connection
SHOULDER GIRDLE MUSCLES
- all originate from —— skeleton and insert into the——- or——- not——-
- the help in—— and——— of the joint
axial
scapula; clavicle; humerus
stability; increasing ROM
The shoulder joint muscles perform —— shoulder joint actions
None
they do not cause should joint actions
TRAPEZIUS muscles
- originates from ——-,——— and——
- insert into—— border of acromion;———- of clavicle;——- border of scapula spine;——- at the base of scapula spine
- upper and middle fibers for——-
- middle and lower for——-
- lower for——
- upward rotation
Base of skull; nuchal crest; C7-T12
medial; posterolateral third; superior; triangular space
elevation
adduction
depression
TRAPEZIUS muscles
-superficial or deep?
Superficial
LEVATOR SCAPULAE
- from————-
- to———-
- for——-
C1-C4’s transverse process
superior angle of scapular
elevation
RHOMBOIDS
- from———-
- insert into—— border of scapula below——-
- for ——— and ——-
spinous process of C7-T5
medial
scapular spine
elevation
-adduction
RHOMBOIDS
Superficial or deep
Deep
PECTORALIS MINOR
- from——-
- to______
- for ——-,——-and ——-
Rib 3-5
coracoid process of scapula
abduction
- depression
- downward rotation
PECTORALIS MINOR
-superficial or deep
Deep
SERRATUS ANTERIOR
- from____
- to______
- for ——— and ———-
rib 1-8
medial border of scapula
abduction
-upward rotation
SUBCLAVIUS
- from———
- to———
- for——- and ——-
junction of first rib and it’s coastal cartilage
middle of clavicle
depression and abduction
——-serves as a buffer for the rotator cuff muscles
SUBACROMIAL ARCH
BURSAE IN SHOULDER
- they secrete——
- distributed to reduce——- between tissues
- helps to cushion——- from laying directly on the acromion
- overuse can lead to——- of bursae
synovial fluid
friction
supraspinatus
irritation
List the 4 bursae In shoulder joints
subacromial-subdeltoid (SASD) bursa.
subscapular bursa.
subcoracoid bursa.
Infraspinatus Bursa.
Subscapular Bursa or the—— Bursa: between the tendon of the——- muscle and——-
Scapulothoracic
Subscapularis
the shoulder joint capsule.
Subdeltoid Bursa: between the——- and the——-
Deltoid muscle; shoulder joint cavity.
Subacromial Bursa: below the——- and above the ———It’s function is to——-
acromion process
greater tubercle of the humerus.
reduce friction in the space under the acromion.
Subcoracoid Bursa: between the ———and the——-
coracoid process of the scapula
shoulder joint capsule.
Infraspinatus Bursa: between the——- and the——-
infraspinatus tendon
capsule of the joint.
MUSCLE STRENGTH SHOULDER COMPLEX. From strongest to weakest
- add
- extend
- flex
- abduct
- int rotation
- ext rotation
the articulating surfaces of the glenohumeral joint are covered with——- cartilage.
hyaline
To reduce the disproportion in surfaces, the glenoid fossa is deepened by a——-, called the——-
fibrocartilage rim
glenoid labrum.
Joint capsule of the shoulder joint extends from the ——-of the——- to the ———of the ———. The joint capsule is—-, permitting greater mobility (particularly——-).
anatomical neck ; humerus
border or ‘rim’
glenoid fossa.
lax
abduction
Subacromial bursae– located deep to the—- and——, and superficial to the—— and——-
deltoid; acromion
supraspinatus tendon
joint capsule.
Glenohumeral ligaments hold the joint in place and preventing it from dislocating——-. They act to stabilise the——- aspect of the joint.
anteriorly
anterior
Coracohumeral ligament – attaches the base of the—— to the ———of the humerus. It supports the——- part of the joint capsule.
coracoid process
greater tubercle
superior
Transverse humeral ligament – spans the distance between the ———of the humerus. It holds the———- in the _____
two tubercles
tendon of the long head of the biceps in the intertubercular groove.]
Coraco–clavicular ligament – composed of the—— and—— ligaments and runs from the clavicle to the coracoid process of the scapula. They work alongside the——- ligament to maintain the alignment of the clavicle in relation to the scapula.
trapezoid; conoid
acromioclavicular
coraco-acromial arch structure overlies the shoulder joint, preventing—— displacement of the humeral head.
superior
The shoulder joint is supplied by the——- arteries, which are both branches of the——- artery. Branches of the suprascapular artery, a branch of the———, also contribute.
Innervation is provided by the——,—— and——- nerves.
anterior and posterior circumflex humeral
axillary
thyrocervical trunk,
axillary; suprascapular; lateral pectoral
Intrinsic muscles of the shoulder – originate from the—— or ——-, and attach to the——.
Aka ———- group
scapula and/or clavicle
humerus
Scapulohumeral
The teres major forms the—— border of the_____– the ‘gap’ that the——- and——- pass through to reach the——- region.
Attachments: Originates from the———-. It attaches to the———
inferior; quadrangular space
axillary nerve; posterior circumflex humeral artery
posterior scapula
posterior surface of the inferior angle of the scapula; medial lip of the intertubercular groove of the humerus.
Supraspinatus
Attachments: Originates from the——- of the scapula, attaches to the ———of the humerus.
Innervation:——- nerve.
Actions:———, and assists—— for ——
supraspinous fossa; greater tubercle
Suprascapular
Abducts the arm 0-15o
deltoid for 15-90o
Infraspinatus
Attachments: Originates from the——, attaches to the——-
Innervation:——— nerve.
Actions:——-
infraspinous fossa of the scapula
greater tubercle of the humerus.
Suprascapular
Laterally rotates the arm.
Subscapularis
Attachments: Originates from the——-, on the——- surface of the scapula. It attaches to the————
Innervation:———- nerves.
Actions:———
subscapular fossa
costal
lesser tubercle of the humerus.
Upper and lower subscapular
Medially rotates the arm.
Teres Minor
Attachments: Originates from the——-, adjacent to its ——-border. It attaches to the——-
Innervation:____ nerve.
Actions:——-
posterior surface of the scapula
lateral
greater tubercle of the humerus.
Axillary
Laterally rotates the arm.
Rotator cuff tendonitis refers to————of the rotator cuff muscles. This usually occurs——- to———-
inflammation of the tendons
Secondary
repetitive use of the shoulder joint.
In Rotator cuff tendonitis
The muscle most commonly affected is the——-. During abduction, it ‘rubs’ against the———-
supraspinatus
coraco-acromial arch
Tears in the tendons of these muscles are called rotator cuff tears. The most commonly affected muscle is the——-.
supraspinatus
