Mod 4 Muscles

Question 1

Sternocleidomastoid origin

Answer 1

Top of the manubrium and medial ⅓ of clavicle

Question 2

Sternocleidomastoid insertion

Answer 2

Mastoid process of the temporal bone and lateral portion of superior nuchal line of occiput

Question 3

Sternocleidomastoid action

Answer 3

Flex neck laterally flex head and neck to same side rotate head and neck to opposite side assist to elevate rib cage during inhale

Question 4

Sternocleidomastoid nerve

Answer 4

Spinal accessory nerve

Question 5

Scalenes

Answer 5

Anterior: 361
Middle: 271
Posterior: 672
Nerve: c3-c8

Question 6

Scalene action

Answer 6

Anterior: flex neck
Lat flex head and neck rotate opposite side elevate ribs on inhale

Question 7

Splenius capitis origin

Answer 7

Inferior ½ of the ligamemtum nuchae and spinous processes of c7-t4

Question 8

Splenius capitis insertion

Answer 8

Mastoid process and lateral portion of the superior nuchal line

Question 9

Splenius capitis actions

Answer 9

Extends head and neck laterally flexes and rotates head and neck to same side

Question 10

Splenius capitis nerve

Answer 10

Cervical nerve

Question 11

Levator scapulae origin

Answer 11

Traverse processes of of c1-c4

Question 12

Levator scapulae insertion

Answer 12

Medial border of scapula between the superior angle and superior portion of spine if scapula

Question 13

Levator scapulae actions

Answer 13

Elevate and downward rotate the scapula at the scapulothoracic joint extend and lat flex and rotate head to same side

Question 14

Levator scapulae nerve

Answer 14

Cervical, dorsal scapular nerve

Question 15

Pectoralis major origin

Answer 15

Medial half of clavicle sternum and cartilage of ribs 1-6

Question 16

Pectoralis major insertion

Answer 16

Crest if greater tubercle of humerus

Question 17

Pectoralis major actions

Answer 17

Adducts medial rotates shoulder at g/h joint assist to elevate thorax during force inhale
Upper fibers flex and horizontally adduct shoulder at g/h jt lower extends

Question 18

Pectoralis major nerve

Answer 18

Med and lat pectoral nerve

Question 19

Splenius cervicis origin

Answer 19

Spinous processes of t3-t6

Question 20

Splenius cervicis insertion

Answer 20

Transverse processes of c1-c3

Question 21

Splenius cervicis actions

Answer 21

Bilaterally extend neck unilaterally lat flex and rotate the neck to same side

Question 22

Splenius cervicis nerve

Answer 22

Cervical nerve

Question 23

Pec minor origin

Answer 23

Ribs 3-5

Question 24

Pec minor insertion

Answer 24

Medial surface of coracoid process of the scapula

Question 25

Pec minor action

Answer 25

Abduct depress and downward rotate scapulothoracic elevate thorax of forced inhale

Question 26

Pec minor nerve

Answer 26

Medial pectoral with fibers from communicating branch of lateral pectoral

Question 27

Longus colli origin

Answer 27

Bodies of c5 through t3 transverse processes of c3-c5

Question 28

Longus colli insertion

Answer 28

Tubercle on anterior arch of the atlas bodies of axis c3 and c4 transverse processes of c5-c6

Question 29

Longus colli action

Answer 29

Bilaterally flex neck unilaterally lat flex and rotate neck to same side

Question 30

Longus colli nerve

Answer 30

C2-c6 (7)

Question 31

Rectus capitis posterior major

Answer 31

Spinous processes of the axis c2 to the inferior nuchal line of the occiput

Question 32

Rectus capitis posterior minor

Answer 32

Tubercle of the posterior arch of the atlas c1 to inferior nuchal line of occiput

Question 33

Oblique capitis inferior

Answer 33

Spinous processes of the axis c2 to the transverse processes of atlas c1

Question 34

Oblique capitis superior

Answer 34

Transverse processes of axis c1 to between nuchal line of occiput

Question 35

Rectus capitis posterior major actions

Answer 35

Rock and tilt head back into extension rotate to same side

Question 36

Rectus capitis minor action

Answer 36

Rock and tilt head back into extension

Question 37

Oblique capitis superior action

Answer 37

Rock and tilt head back into extension lat flex head to same side

Question 38

Oblique capitis inferior actions

Answer 38

Rotate head same side

Question 39

Suboccipital group nerve

Answer 39

Suboccipital nerve