Deep Back And Suboccipital Triangle

Question 0

blood supply to serratus posterior superior?

Answer 0

posterior intercostal a.

Question 1

Innervation for Serratus posterior superior

Answer 1

ventral rami T2-T5 intercostal n.

Question 2

action of serratus posterior superior?

Answer 2

elevates ribs

Question 3

distal attachment of serratus posterior superior?

Answer 3

superior border of ribs 2-4

Question 5

proximal attachment of serratus posterior superior?

Answer 5

spinous process of C7-T3 vertebrae and nuchal ligament

Question 6

innervation of serratus posterior inferior

Answer 6

T9-T11 intercostal nerves and subcostal nerve (T12), ventral rami

Question 7

blood supply to serratus posterior inferior?

Answer 7

posterior intercostal arteries

Question 8

action of serratus posterior inferior?

Answer 8

depress ribs

Question 9

distal attachment of serratus posterior inferior

Answer 9

inferior borders of ribs 8-12, near their angles

Question 10

proximal attachment of serratus posterior inferior?

Answer 10

spinous processes of T11-L2 vertebrae

Question 11

origin for splenius cervicis and splenius capitis?

Answer 11

nuchal ligament and spinous processes of C7-T6

Question 12

insertion of splenius cervicis

Answer 12

tubercles of transverse processes of C2-C3 (sometimes C4) vertebrae

Question 13

insertion of splenius capitis

Answer 13

lateral parts of mastoid processes and superior nuchal line

Question 14

actions of splenius capitis and splenius cervicis?

Answer 14

bilaterally: extend head and neck
unilaterally: laterally flex neck and rotate head to side of contracting muscle

Question 15

Blood supply to splenius capitis and splenius cervicis?

Answer 15

transverse cervical a, occipital a, and muscular branches from aorta

Question 16

innervation to splenius cervicis and splenius cervicis?

Answer 16

dorsal rami of spinal nerves

Question 17

3 muscles that make up erector spine group?

Answer 17

iliocostalis, longissimus, spinal (outside->in “I love Spaghetti)

Question 18

actions of the erector spine group?

Answer 18

bilaterally: extend vertebral column and head
unilaterally: laterally flex vertebral column

Question 19

innervation of erector spinae group?

Answer 19

dorsal rami of spinal nerves

Question 20

what are the 3 divisions of the iliocostalis group?

Answer 20

lumborum, thoracis, and cervicis

Question 21

origin of iliocostalis muscle?

Answer 21

broad common tendon attaches to iliac crest, posterior part of sacrum, sacroiliac ligaments, sacral and inferior lumbar spinous processes, and supraspinous ligament

Question 22

insertions of iliocostalis muscles?

Answer 22

fibers run superiorly to angles of ribs and transverse processes

Question 23

blood supply of iliocostalis?

Answer 23

posterior intercostal and lumbar arteries

Question 24

origin of longissimus thoracis?

Answer 24

SAME AS ILIOCOSTALIS
broad common tendon attaches to iliac crest, posterior part of sacrum, sacroiliac ligaments, sacral and inferior lumbar spinous processes, and supraspinous ligament

Question 25

insertion of longissimus thoracis?

Answer 25

fibers run superiorly to ribs and adjacent transverse processes of thoracic vertebrae

Question 26

blood supply to longissimus thoracis?

Answer 26

posterior intercostal arteries

Question 27

origin of longissimus cervicis?

Answer 27

transverse processes of cervical vertebrae

Question 28

insertion of longissimus cervicis?

Answer 28

firers run superiorly to ribs and adjacent transverse processes of vertebrae (some parts hard to distinguish from L capitus)

Question 29

blood supply to longissimus cervicis?

Answer 29

posterior intercostal arteries

Question 30

origin of longissimus capitis?

Answer 30

transverse processes of cervical vertebrae

Question 31

insertion of longissimus capitis?

Answer 31

mastoid processes

Question 32

blood supply to longissimus capitis?

Answer 32

occipital artery

Question 33

thoracis spinalis fibers run where?

Answer 33

run superiorly from spinous process to spinous process in upper thoracic region

Question 34

three parts of spinalis group?

Answer 34

thoracis, cervicis and capitis (these two can be difficult to differentiate, capitus may be entirely missing)

Question 35

blood supply to spinalis group?

Answer 35

posterior intercostal arteries

Question 36

3 muscle groups within transversospinalis group?

Answer 36

semispinalis, rotatores, multifidus

Question 37

innervation of transversospinalis group?

Answer 37

dorsal rami of spinal nerves

Question 38

3 divisions of semispinalis group?

Answer 38

thoracis, cervicis, and capitis

Question 39

blood supply to semispinalis cervicis?

Answer 39

deep cervical artery

Question 40

origin/insertion of semispinalis cervicis?

Answer 40

cervical transverse processes to spinous processes of 2nd cervical vertebrae

Question 41

blood supply to semispinalis thoracis?

Answer 41

posterior intercostal arteries

Question 42

origin/insertion of semispinalis thoracis?

Answer 42

transverse to spinous processes in thoracic region

Question 43

action of semispinalis group?

Answer 43

extend head, thoracic and cervical regions; rotates them contralaterally

Question 44

origin/insertion of semispinalis capitis?

Answer 44

(superficial to cervicis) transverse processes of thoracic vertebrae to nuchal line

Question 45

blood supply to semispinalis capitis?

Answer 45

deep cervical artery

Question 46

where do multifidus muscles originate and insert?

Answer 46

originate on transverse processes and insert on spinous processes

Question 47

what do multifidus muscles cover?

Answer 47

lamina and span vertebral segments from sacrum to cervical region

Question 48

where are multifidus muscles the thickest?

Answer 48

lumbar region

Question 49

what is the blood supply for multifidus muscles?

Answer 49

posterior lumbar arteries

Question 50

what is the action of the multifidus muscle group?

Answer 50

stabilizes vertebrae during localized movements of vertebral column

Question 51

rotatores brevis runs where?

Answer 51

transverse process of one vertebrae to base of spinous process of next vertebra above (one intervertebral joint)

Question 52

rotatores longs runs where?

Answer 52

transverse process of one vertebra to spinous process of 2nd vertebrae above (spans 2 intervertebral joints)

Question 53

where are the rotatores easiest to see?

Answer 53

thoracic region

Question 54

what is the blood supply to rotators?

Answer 54

posterior intercostal arteries

Question 55

what are the actions of the rotatores?

Answer 55

extends head, thoracic, & cervical regions; rotates them contralaterally

Question 56

innervation of interspinales?

Answer 56

dorsal rami of spinal nerves

Question 57

blood supply to interspinales?

Answer 57

vertebral a., occipital a., posterior intercostal a.

Question 58

innervation of intertransversari?

Answer 58

dorsal AND VENTRAL rami of spinal nerves