Exam 2 - Movements of Scap Flashcards
1
Q
Elevation - muscles producing movement
A
- Trapezius m., descending part (prime mover)
- Levator scapulae m.
- Rhomboids m.’s
2
Q
Elevation - nerve to muscles
A
- spinal accessory n. (CN XII)
- dorsal scap n.
3
Q
Elevation - range of mvmt (angular rotation, linear displacement)
A
10-12cm
4
Q
Depression - muscles producing movement
A
- Gravity (prime mover)
- Pec major m., inferior sternocostal head
- Latissimus dorsi m.
- Trapezius m., ascending part
- Serratus anterior m.
Pectoralis minor m.
5
Q
Depression - nerve to muscles
A
- Pectoral nerves
- Thoracodorsal n.
- Spinal accessory n.
- Long thoracic n.
- Medial pectoral n.
6
Q
Depression - range of mvmt
A
10-12cm
7
Q
Protraction - muscles producing movement
A
- Serratus anterior m. (prime mover)
- Pectoralis major m.
- Pectoralis minor m.
8
Q
Protraction - nerves to muscles
A
- Long thoracic n.
- Pectoral nerves
- Medial pectoral n.
9
Q
Protraction - range of mvmt
A
40-45 degrees; 15 cm
10
Q
Retraction - muscles producing movement
A
- Trapezius m., middle part (prime mover)
- Rhomboids m.’s
- Latissimus dorsi m.
11
Q
Retraction - nerves to muscles
A
- spinal accessory n.
- Dorsal scapular n.
- Thoracodorsal n.
12
Q
Retraction - range of mvmt
A
40-45 degrees; 15 cm
13
Q
Upward rotation - muscles producing movement
A
- Trapezius m., descending part (prime mover)
- Trapezius m., ascending part
- Serratus anterior m. (prime mover)
14
Q
Upward rotation - nerves to muscles
A
- Spinal accessory n.
- Long thoracic n.
15
Q
Upward rotation - range of mvmt
A
60 degrees
inferior angle: 10-12cm
superior angle: 5-6cm
