Upper Extremity Innervation(Shoulder Girdle)

Question 1

What movements are controlled by the Upper Trapezius and what’s its innervation?

Answer 1

-Shoulder Shrug
-Scapular Upward Rotation
-CN XI Spinal Accessory(C1-C4)

Question 2

What movements are controlled by the Pec minor and what’s its innervation?

Answer 2

-Horizontal Abduction
-Scapular downward rotation
-Medial Pectoral Nerve(C8-T1)

Question 3

What movements are controlled by the Serratus anterior and what’s its innervation?

Answer 3

-Scapular Protaction
-Scapular Upward Rotation
-Long Thoracic(C5-C7)

Question 4

What movements are controlled by the Rhomboids and what’s its innervation?

Answer 4

-Scapular adduction(Retraction)
-Scapular Downward Rotation
-Dorsalscapular(C4-C5)

Question 5

What movements are controlled by the Levator Scapula and what’s its innervation?

Answer 5

-Scapular Downward Rotation
-Shoulder Elevation
-Dorsalscapular(C5)

Question 6

What is the suprapinatus responsible for and whats its innervation?

Answer 6

-First 25 degrees of Shoulder abduction
-Suprascapular(C4-C6)

Question 7

What is the infraspinatus responsible for and whats its innervation?

Answer 7

-Shoulder lateral(External) rotation
-Suprascapular(C4-C6)

Question 8

What is the Teres Minor responsible for and whats its innervation?

Answer 8

-Shoulder Lateral(External) Rotation
-Axillary (C5-C6)

Question 9

What is the Latissimus Dorsi responsible for and whats its innervation?

Answer 9

-Shoulder Adduction
-Shoulder Internal(Medial) Rotation
-Thoracodorsal(C5-C8)

Question 10

What is the subscapularis responsible for and whats its innervation?

Answer 10

-Shoulder Medial(Internal)Rotation
-Subscapular(C5-C8)

Question 11

What is the Teres Major responsible for and whats its innervation?

Answer 11

-Shoulder Medial(Internal) Rotation
-Subscapular(C5-C8)

Question 12

What is the Deltoid responsible for and whats its innervation?

Answer 12

-Shoulder Abd
-Shoulder Flex
-Shoulder Ext
-Axillary(C5-C6)