Chapter #4. (The shoulder Girdle) Flashcards
What is another term for shoulder girdle: is it a true joint?
Scapulothoracic
-not a true synovial joint
Is there a lot of amount of movement in the Sternoclavicular (SC) joint?
very little movement
***What 2 ligaments provide stability against superior displacement
-costoclavicular & interclavicular ligaments
What 2 bones make up the/ Acromioclavicular (AC) joint
-acromion and clavicle
For the Scapulothoracic (SC) joint what is the degree for:
- protraction/retraction
- lateral/medial rotation
- elevation/depression
p/r= 25
l/m=60
e/d=55
*What is the function of the shoulder girdle muscles
-stabilize the scapula so the shoulder joint will have a stable base from which to exert force for moving the humerus
**To have FULL R.O.M what is important that the shoulder might have
Lateral tilt
Medial tilt
Upward/anterior tilt
Downward/posterior tilt
What are the 2 plexuses that primarily innervate the shoulder girdle
-Cervical and Brachial Plexus
What are the 5 nerve branches that supply the shoulder girdle
- Axillary nerve
- Radial nerve
- Musculocutaneous nerve
- Median nerve
- Ulnar nerve
What is the O.N.I.A for the Upper Trapezius
O: Base of Skull, occipital protuberance, cervical ligaments
I: lateral 1/3 clavicle and acromion process
N: (C11) spinal accessory nerve
A: Elevation (up)
DONT NEED TO KNOW:
What is the Therband and Stretch for the Upper Trapezius
Th: therband under feet, pull up (elevate)
St: move neck to the side and push down on your shoulder
Important to remember when exercising= Therband is: Free weight is: Strength is: Stretch is:
- parallel
- against gravity
- action (agonist muscle)
- opposite of action (antagonist)
What is the O.N.I.A for the Middle Trapezius
O: Spinous process T1-T5
I: Spine of Scapula
N: (C11) Spinal accessory nerve
A: retraction
What is the O.N.I.A for the Lower Trapezius
O: Spinous Process T6-T12
I: Base of Spine of Scapula
N: (C11) Spinal Accessory nerve
A: Depression (down)
What is the O.N.I.A for the Levator Scapulae
O: trans. Process C1-C4
I: Superior angle of scapula
N: dorsal scapular nerve
A: elevation
DONT NEED TO KNOW
Are the Levator Scapulae exercises the same as the Trapezius exercises? Is the action the same as the Upper Trapezius?
Yes
Yes
What is the O.N.I.A for the Rhomboids?
O: Spinous process C5-C7
I: medial border of scapula
N: Dorsal scapula nerve
A: Retraction
DONT NEED TO KNOW: What is the exercise for Rhomboids? Free weight: Therband: Stretch:
F: leaning forward and pulling up weight vertically
Th: tighten to a door handle and retract back
S: just bring arm across body and stretch
What is the O.N.I.A for the Serratus Anterior Muscle?
*Nerve?
O: Upper 9 ribs
I: medial border of scapula
N: long thoracic nerve
A: protraction
DONT NEED TO KNOW:
What is the exercise for Serratus Anterior Muscle?
Free weight:
Therband:
F: Supine lying face up pushing up weights
Th: behind your back and protract
What is the O.N.I.A for the Pectoralis Minor ?
O: ribs 3-5
I: corocoid process
N: medial pectoral nerve
A: Proctraction and depression
what other muscle is the pec minor related to with protraction exercises?
serratus anterior muscle
> Is there a O.I.N.A for the Subclavius muscle?
What is the exercise?
What is its function?
No
Depression
Protects and stabilizes the Sternoclavicular joint
Scapula Protraction:
What is the synergist of Pectoralis Minor?
Serratus Anterior
Scapula Retraction:
What is the synergist of Middle Trapezius
Rhomboids
Scapula Elevation:
What is the synergist of Levator Scapula
Upper Trapezius
Rhomboid
Scapula Depression:
What is the Synergist for Lower Trapezius
Pectoralis Minor
