SA-muscles

Question 1

Laterally flexes head/neck to same side and when contracts bilaterally, extends spine

Answer 1

erector spinae muscles (neck)

Illiocostalis, longissimus, spinalis

Question 2

spinalis O&I

Answer 2

SP to SP

Question 3

Illiocostalis O&I

Answer 3

O: Sacrum/Illiac Crest/Spinous Processes of lower lumbar/thoracic vertebrae
I: Ribs

cervicis O: angles of the third, fourth, fifth, and sixth ribs, I: Inserted into the posterior tubercles

Question 4

longissimus O&I

Answer 4

TP to TP

Question 5

4 muscles of sub occipital triangle

Answer 5

Inf. oblique
Sup. oblique
Rectus capitus post. major
rectus capitus post. minor

Question 6

All 4 muscles of sub occipital triangle are innervated by

Answer 6

dorsal ramus C1 “suboccipital nerve”:somatic motor

Question 7

Sub occipital triangle:transverse process of C1 to spinous process of C2; makes atlas (C1) pivot on axis (C2); same-side rotation

Answer 7

Inferior oblique

Question 8

Sub occipital triangle:transverse process of C1 to skull

Answer 8

Superior oblique

Question 9

Sub occipital triangle: spinous process of C2 to skull

Answer 9

rectus capitus posterior major

Question 10

Name two muscles that have attachment at the transverse process of C1 (atlas)

Answer 10

superior oblique and inferior oblique

Question 11

posterior tubercle of C1 to skull

Answer 11

rectus capitus posterior minor

Question 12

Name two muscles that have attachment at the spinous process of C2 (axis)

Answer 12

inferior oblique, rectus capitus posterior major, and semispinalis cervicis
 

Question 13

Name muscle that attaches at the posterior tubercle of C1 (atlas)

Answer 13

rectus capitus posterior minor

Question 14

Name artery lying on top of the atlas (C1)

Answer 14

vertebral

Question 15

Name source and termination of vertebral artery

Answer 15

source: subclavian artery
termination: basilar artery

Question 16

somatic sensory fibers to the spinal cord via

Answer 16

dorsal roots

Question 17

somatic motor fibers away from the spinal cord via

Answer 17

ventral roots

Question 18

What separates the dorsal roots from the ventral roots

Answer 18

denticulate ligament

Question 19

DRG comes from

Answer 19

neural crest cells

Question 20

Pelvic diaphram is made up of muscles (2)
primary?
secondary?

Answer 20

levator ani (primary) coccygeus (2ndary)

Question 21

infrahyoid muscles are innervated by the

Answer 21

ansa cervicalis (C-C4)

Question 22

what are the 4 infra hyoid muscles?

Answer 22

sternohyoid
sternothyroid
thyrohyoid
omohyoid

“Silly Sam tried opium”

Question 23

CN4 innervates

Answer 23

superior oblique

Question 24

atrophy of fingers (interosseous muscles) and inflammation of pisiform can affect the ____

Answer 24

ulnar nerve

Question 25

18. Flexion of the hip is the primary action of the

Answer 25

psoas

Question 26

What muscle attaches to the articular disc (between mandible and temporal)

Answer 26

lateral ptyerogoid muscle

Question 27

nerves supplies the SCM muscles

Answer 27

spinal accessory – also the traps

Question 28

Muscles derived form the 1st pharyngeal arch are supplied by the nerve

Answer 28

V - trigeminal

Question 29

______ attaches to the coronoid process of the mandible

Answer 29

temporalis

Question 30

serratus anterior is innervated by

Answer 30

long thoracic nerve

Question 31

transversal spinal muscle group (deepest)

Answer 31

semispinalis capitis
multifidis
rotators

Question 32

what muscle attaches to the articular processes of C3 through C6

Answer 32

semispinalis capitis

*this is a deep muscle

Question 33

erecter spinae muscles

Answer 33

I love spine

Illiocostalis, Longissium, spinalis

Question 34

levator palpebrae superioris → innervated by

Answer 34

CN III and sympathetics

Question 35

continuation of the ligamentum nuchae

Answer 35

supraspinous ligament

Question 36

muscle fibers of the diaphram insert

Answer 36

central tendon – pierced by the IVC

-origin is the costal margin and ribs

Question 37

lower four ribs are depressed by which of the following muscles

Answer 37

serratus posterior inferior

• serratus anterior – protractor and abduction of the scapula
• internal and external intercostalis → pulls only one rib
• serratus posterior superior → elevates the upper four ribs