muscles of the back Flashcards
1
Q
A
2
Q
Nerve supply of trapezius motor…….
Sensory ……..
A
Spinal root of accessory nerve
Cervical nerves number 3 and 4 (C3 and 4)
3
Q
Trapezius action …..,…..,….&……
A
Maintains the level of the shoulder
Its upper fibers elevate the shoulder girdle
The upper and lower fibers of trapezius rotate the scapula do that the glenoid cavity looks upwards to put the arm above the head
Acting with rhomboids, its middle fibers retract the scapula and brace back the shoulder
4
Q
Paralysis of the trapezius leads to
A
Shoulder drop
5
Q
Latissimus dorsi innervationis
A
Thoraco-dorsal nerve (nerve to latissimus dorsi)
6
Q
Latissimus dorsi innervationis
A
Thoraco-dorsal nerve (nerve to latissimus dorsi)
7
Q
La
A
