muscles of trunk neck head Flashcards
diaphragm
- the lumbar vertebrae
- bodies and intervening discs
L1 – L3 - inner surface of the lower six ribs and their costal cartilages
- posterior surface of the xiphoid process of the sternum
to - centeral tendon
external intercostal muscles
lower border of rib above
to
upper border of rib below
internal intercostal muscles
costal groove of rib above
to
upper border of the rib below
levator costarum
transverse processes of vertebrae C7 to T11
to
upper border of the rib below
subcostals
internal surface ribs near angles
to
superior border ribs 2 or 3 below
rectus abdominus
xiphoid process of sternum, costal cartilages of ribs 5, 6, and 7
to
pubic crest and pubic symphysis
external oblique
outer border lower 8 ribs and costal cartilages
to
iliac crest, linea alba
internal oblique
lower border lower 4 ribs and costal cartilages
to
iliac crest, linea alba
thoracolumbar fascia, inguinal ligament
transverse abdominus
inner surface of the costal cartilages of the lower 6 ribs
to
iliac crest, thoracolumbar fascia, inguinal ligament, linea alba
pyramidalis
pubic crest
to
linea alba
F: tenses the linea alba
quadratus lumborum
- medial half lower border rib 12
- of L1-L5
to - iliac crest and adjacent iliolumbar ligament
- F: bilaterally- trunk extension, unilaterally- lat. flexion
psoas major
bodies and IV discs, and TP of T12 – L5
to
lesser trochanter of femur with iliacus
F: bilaterally- trunk flexion, unilaterally- trunk lat. flexion
psoas minor
bodies and IV disc T12 and L1
to
iliopubic eminence
iliac fascia
F: weak trunk flexor
iliacus
iliac fossa
to
lesser trochanter of femur with psoas major
F: trunk flexion
serratus posterior superior
spinous processes C7 to T3
to
angels of ribs 2 - 5
F: inspiration, rib elevation
serratus posterior inferior
spinous processes T11 to L2
to
angles ribs 9 - 12
F: expiration, rib depression
erector spinae
(common origin)
- spinous processes & supraspinous ligaments T11 to L5
- transverse processes of lumbar vertebrae
- median sacral crest
- iliac crest
iliocostalis lumborum
from common origin
to
attaches to angles of lower ribs
F: bil- trunk extension, uni- lateral trunk flexion (lat region)
Iliocostalis thoracis
angles of lower ribs
to
angles of upper ribs
F: bil- trunk extension, uni- trunk Lat flexion
Iliocostalis cervicis
angles of upper ribs
to
transverse processes of lower cervical vertebrae
F: bil- trunk & neck extension, uni- trunk & neck lat flexion
longissimus thoracis
from common origin
to
TP thoracic vertebrae & adjacent rib
F: Bil- trunk, extension, uni- weak trunk lat flexion
longissimus cervicis
TP upper thoracic vertebrae
to
TP mid cervical vertebrae
F: Bil- trunk, neck extension, uni- weak trunk neck lat flexion
longissimus capitis
TP upper thoracic & mid cervical vertebrae
to
base of skull (mastoid process of the temporal bone)
F: Bil- neck, head extension, uni- weak head neck lat flexion
spinalis thoracis
SP low thoracic & upper lumbar vertebrae
to
SP upper thoracic vertebrae
F: Bil- trunk, extension, uni- trunk lat flexion
spinalis cervicis
SP upper thoracic vertebrae
to
SP cervical vertebrae
F: Bil- trunk, neck extension, uni- weak trunk neck lat flexion
spinalis capitis
medial portion of semispinalis capitis
F: Bil- neck, head extension, uni- weak head neck lat flexion
semispinalis thoracis
low thoracic TP
to
low cervical & upper thoracic SP (5-7 levels above)
F: bil- trunk & neck extension, uni- trunk neck contralateral rotation
semispsinales cervicis
upper thoracic TP
to
mid cervical SP (5-7 levels above)
F: bil- trunk, head & neck extension, uni- trunk head neck contralateral rotation
semispinalis capitis
upper thoracic & low cervical TP
to
skull (jumping 5-7 levels)
F: bil- head & neck extension, uni- head neck contralateral rotation
multifidus
TP -> SP (2-5 levels above)
F: bil- trunk, neck extension, uni- trunk neck lat flex & contralateral rot & stability
rotatores
TP -> SP (1-2 levels above)
F: bil- trunk, neck extension, uni- trunk neck lat flex & contralateral rot & stability
intertranversarii
TP
F: stability & trunk lat flex
interspinales
SP
F: stability, trunk extension
sternocleidomastoid
mastoid process of the temporal bone, superior nuchal line
to
sternal head: anterior surface of the manubrium
clavicular head: medial 1/3 of the clavicle
F: bil- head and neck flex, uni- head neck lat flex, rotate head and neck
platysma
skin and subcutaneous tissue of the upper thorax and shoulder
to
mandible and fascia of lower face
longus colli
upper thoracic vertebrae
bodies to TP, TP to bodies, bodies to bodies
to
upper cervical vertebrae
F: bil- neck flex
longus capitis
upper cervical TP
to
anterior base of skull
F: bil: head neck flex
scalenius anterior
TP of C3-6
to
rib 1
F: B- neck flexion U- neck lat flexion
scalenius medius
TP of C1-7
to
rib 1
F: U- lat flexion neck
scalenius posterior
TP of C4-6
to
rib 2
F: U- lat flexion neck
rectus capitis lateralis
TP of C1
to
jugular process of the occipital bone
F: U- lat flexion head
levator scapulae
transverse processes of C1-C3 vertebrae
to
medial border of scapula between superior angle and base of spine
F: B- neck extension, U- neck lat flexion
trapezius
- external occipital protuberance of skull
- superior nuchal line of skull
- acromion of scapula
- ligamentum nuchae
of C7-T1
to - lateral 1/3 clavicle
- acromion process
- medial end of spine of scapula
- F: B- head and neck ext, U- head neck lat flexion
splenius cervicis
SPof C3-6
to
TP of C1-4
F: neck ext lat flex rotation
splenius capitis
SP of C7-T4 and ligamentum nuchae
to
mastoid process
superior nuchal line
F: B- head neck extension U- head neck lat flexion rotate head and neeck
rectus capitis posterior major
C2 SP (axis)
to
lateral part of inferior nuchal line
F: extends head and neck, stabiliser.
superior oblique
TP of C1 (atlas)
to
skull between superior & inferior nuchal lines
F: extend head neck, stabilser
rectus capitis posterior minor
C1 posterior arch/tubercle (atlas)
to
medial part of inferior nuchal line
F: extend head neck, stabilser
temporalis
temporal bone
to
coronoid process of mandible
F:
inferior oblique
SP C2 (axis)
to
TP C1 (atlas)
stabilser
masseter
maxilla and zygomatic bone
to
lateral surface angle and ramus of mandible
lateral pterygoid
sphenoid bone
to
neck of mandible
medial pterygoid
sphenoid bone
to
medial surface angle of mandible
digastric
mastoid process of temporal bone
lower border of mandible
to
hyoid
stylohyoid
styloid process of temporal bone
to
posterior edge of hyoid
geniohyoid
posterior surface of anterior mandible
to
body of hyoid
mylohyoid
medial surface of body of mandible
to
midline raphe
thyrohyoid
thyroid cartilage of larynx
to
body of hyoid
sternohyoid
posterior surface of manubrium of sternum
to
body of hyoid
sternothyroid
posterior surface of manubrium of sternum
to
oblique line of thyroid cartilage
omohyoid
suprascapular notch of scapula
to
body of hyoid
