Superficial Back

Question 1

What is another name for the superficial back muscles

Answer 1

The superficial posterior axioappendicular muscles

Question 2

What is the general function of the superficial back muscles

Answer 2

To provide direct attachment between the trunk and upper limb

Question 3

What are the primary muscles of the back

Answer 3

The trapezius and latissimus dorsi

Question 4

Where do the deep axioappendicular muscles lie

Answer 4

Deep to the trapezius

Question 5

What are the deep axioappendicular muscles

Answer 5

Levator scapulae, rhombiod minor and rhombiod major

Question 6

Describe the innervation of the trapezius

Answer 6

The spinal accessory nerve. Also recieves proprioceptor fibres from C3 and C4

Question 7

Describe the innervation of the latissimus dorsi

Answer 7

The thoracodorsal nerve

Question 8

Describe the innervation of the levator scapulae

Answer 8

The dorsal scapular nerve and C3 and C4 nerves

Question 9

Describe the innervation of the rhombiod minor

Answer 9

The dorsal scapular nerve

Question 10

Describe the innervation of the rhomboid major

Answer 10

The dorsal scapular nerve

Question 11

Describe the action of the descending (superior) part of the trapezius

Answer 11

Elevates the scapula

Question 12

Describe the action of the middle part of the trapezius

Answer 12

Retracts the scapula (pulls it posteriorly)

Question 13

Describe the action of the ascending (inferior) part of the trapezius

Answer 13

Depresses the scapula and lowers the shoulder

Question 14

Describe the combined action of the descending and ascending parts of the trapezius

Answer 14

Together they rotate the glenoid cavity (shoulder blade) superiorly