Muscles: details

Question 1

Trapezius

Answer 1

elevates, depresses, retracts, upwards rotation of scapula

n. spinal accessory (CN XI)
a. transverse cervical

Question 2

Levator Scapulae

Answer 2

elevates scapula

n & a. dorsal scapular

Question 3

Rhomboid minor and major

Answer 3

elevate, retract, downward rotation of scapula, fix scapula to thoracic wall

n & a. dorsal scapular

Question 4

latissimus dorsi

Answer 4

extend, adduct arm, rotate arm medially, raise body towards arms

n & a. thoracodorsal

Question 5

Splenius

Answer 5

extend and laterally rotate cervical spine

n. dorsal rami

Question 6

serratus posterior superior and inferior

Answer 6

assist in forced respiration

n. ventral rami

Question 7

Erector spinae

Answer 7

extend and laterally flex spine, extend and rotate skull via capitis portions

n. dorsal rami

Question 8

Deltoid

Answer 8

abducts 15-90, flex, extend, medially and lateral rotate arm

n. axillary

Question 9

teres major

Answer 9

adduct, media rotation, assists latissimus dorsi in extending arm

n. lower subscapular

Question 10

supraspinatus

Answer 10

abduct arm 0-15

n. suprascapular

Question 11

subscapularis

Answer 11

medial rotation of arm

n. upper and lower subscapular

Question 12

infraspinatus

Answer 12

lateral rotation of arm

n. suprascapular

Question 13

teres minor

Answer 13

lateral rotation of arm

n. axillary

Question 14

pectoralis major

Answer 14

flex arm, medial rotation, adduct

Question 15

pectoralis minor

Answer 15

elevate ribs, protract scapula