exam 1 muscle actions

Question 1

laterally flex head

Answer 1

splenius and longissimus

Question 2

extend head

Answer 2

rectus capitis post major, rectus capitis post minor, obliquus capitis superior, semispinalis

Question 3

rotate head

Answer 3

obliquus capitis inferior and semispinalis

Question 4

extend head and neck

Answer 4

splenius

Question 5

laterally flex verterbral column

Answer 5

spinalis, longissimus, iliocoastalis, intertransversaii, levatores costarum

Question 6

rotate verterbral column

Answer 6

splenius cervicis, semispinalis, multifidus

Question 7

extend vertebral column

Answer 7

spinalis, longissimus, iliocoastalis, semispinalis and interspinales

Question 8

elevate ribs

Answer 8

levatores costarum

Question 9

elevate upper ribs

Answer 9

serratus posterior superior

Question 10

depress lower ribs

Answer 10

serratus posterior inferior

Question 11

depress scapula

Answer 11

lower trapz (ascending)

Question 12

elevate scapula

Answer 12

upper traps(descending) and levator scapulae

Question 13

rotate scapula inferiorly

Answer 13

rhomboid major, rhomboid minor, levagor scapulae

Question 14

rotate scapula superioly

Answer 14

ascending and descending trapz

Question 15

extend arm, adduct arm, and medially rotate arm

Answer 15

latissimus dorsi