Shoulder Muscles Flashcards
1
Q
Origin of the Trapezius
A
- Superior nuchel line/occiput
- External occipital protuberance
- Ligamentum Nuchae
- Spines of the thoracic vertebrae
2
Q
Insertion of the Trapezius
A
- Clavicle
- Acromion process and spine/scapula
3
Q
Action of the Trapezius
A
- Stabilizes scapula
- Upper portion: Elevates scapula
- Middle and lower portions: Adducts scapula
4
Q
Nerve supply of the Trapezius
A
- Motor: Spinal accessory nerve (XI cranial)
- Sensory: C4 and C5
5
Q
Origin of the Rhomboid Major
A
- Spines/Upper thoracics
6
Q
Insertion of the Rhomboid Major
A
- Vertebral border/Scapula
7
Q
Action of the Rhomboid Major
A
- Elevates and adducts scapula
- Helps stabilize scapula
8
Q
Nerve supply of the Rhomboid Major
A
- Dorsal scapular nerve
9
Q
Origin of the Rhomboid Minor
A
- Spines/Lower cervicles and T1
10
Q
Insertion of the Rhomboid Minor
A
- Vertebral border/Scapula
11
Q
Action of the Rhomboid Minor
A
- Elevates and adducts scapula
- Helps stabilize scapula
12
Q
Nerve supply of the Rhomboid Minor
A
- Dorsal scapular nerve
13
Q
Origin of the Levator Scapula
A
- Transverse process/Upper cervicals
14
Q
Insertion of the Levator Scapula
A
- Superior border/Scapula
15
Q
Action of the Levator Scapula
A
- Elevates scapula
- Adducts scapula
- Stabilizes scapula
