Nerves- Superficial Back

Question 1

ligamentum nuchae

Answer 1

ligament on back of neck that
-helps keep head straight
-reduces contraction needed to support the head

Question 2

spinal accessory nerve (CN XI) runs with

Answer 2

transverse cervical artery in trapezius

Question 3

spinal accessory nerve (CN XI) motor function

Answer 3

-trapezius
-sternocleidomastoid

Question 4

spinal accessory nerve (CN XI) sensory function

Answer 4

none, motor only

Question 5

transverse cervical artery runs with

Answer 5

spinal accessory nerve in trapezius

Question 6

1st division from subclavian artery

Answer 6

thyrocervical trunk

Question 7

suprascapular artery

Answer 7

provides blood flow to infra/supraspinatus

Question 8

which 3 arteries branch off the subclavian artery

Answer 8

-transverse cervical artery
-thyrocervical trunk
-suprascapular artery

Question 9

subclavian artery supplies to

Answer 9

upper arm

Question 10

dorsal scapular nerve motor function

Answer 10

-levator scapulae
-rhomboid minor
-rhomboid major

Question 11

dorsal scapular nerve sensory function

Answer 11

none, motor only

Question 12

suprascapular nerve motor function

Answer 12

supra/infraspinatus

Question 13

suprascapular nerve sensory function

Answer 13

-acromioclavicular joint
-shoulder (glenohumeral) joint

(geared toward joint sensation)

Question 14

quadrangular space borders

Answer 14

-teres minor
-humerus
-teres major
-triceps (long head)

Question 15

what is the only nerve in this deck that has sensory function

Answer 15

suprascapular nerve

Question 16

quadrangular space nerve

Answer 16

axillary nerve

Question 17

quadrangular space artery

Answer 17

posterior humeral circumflex artery

Question 18

triangular interval borders

Answer 18

-teres major
-humerus
-triceps (long head)

Question 19

triangular interval nerve

Answer 19

radial nerve

Question 20

triangular interval artery

Answer 20

deep brachial artery

Question 21

**what nerve travels with the transverse cervical artery + what does it innervate?

Answer 21

-spinal accessory nerve (CN XI)
-innervates entire trapezius

Question 22

**what does the suprascapular nerve innervate?

Answer 22

-infraspinatus
-supraspinatus

Question 23

**where does the suprascapular nerve provide sensation?

Answer 23

AC + shoulder (glenohumeral) joint

Question 24

**what muscles does the dorsal scapular nerve innervate?

Answer 24

-rhomboid minor
-rhomboid major
-levator scapulae

Question 25

**which 4 muscles are responsible for stabilizing the humeral head in the glenoid cavity?

Answer 25

ROTATOR CUFF MUSCLES -infraspinatus -supraspinatus -teres minor -subscapularis

Question 26

**what are the 4 rotator cuff muscles?

Answer 26

-infraspinatus -supraspinatus -teres minor -subscapularis

Question 27

**what are the borders of the quadrangular space?

Answer 27

-teres minor -humerus -teres major -triceps long head

Question 28

**what nerve + artery are found in the quadrangular space?

Answer 28

-axillary nerve (supplies deltoid + teres minor) -posterior humeral circumflex artery (these 2 structures run together)

Question 29

**what are the borders of the triangular interval?

Answer 29

-teres major -humerus -triceps long head