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SPINOHUMERAL MUSCLES
Ml Ol Il N: A! F:Trapezius Descending part:
Superior nuchal line,external occipital protuberance,nuchal ligament
Transverse part:C7-T3:-sprnous process-supraspinous ligaments
Ascending part:f3-L2i-<ninnr rc nrnaocc-qilorAqninol rs lioamenlq
Clavicle: lateral 1/3
Acromion
Spine of scapula
Accesory n,
Cervical plexus
Darsal scapulara. (fromtransversecervical a.)
Scapula:-Elevation / Depression-Retraction-Rotation
At 7 o'clock, I'll climb a 3,
Latissimus dorsi Vertebral part:T6-12i-spinous process-interspinous ligamentsL1 -5(via thoracolumbar fascia) :
-spinous process-interspinous ligaments
iliac part:Iliac crest
costal paft:Rib 10-12
Scapular part:Inferior anole
Humerus:
crest of lesser tubercle
intertubercular sulcus
Thoracodorsal n,
(brachial plexus)
Thoracodorsala. (fromsubscapular a.)
Dorsal scapulara. (fromtransverseceruical a.)
Glenohumeral joint:-Medial rotation-Adduction-Extension-Transverse extension (until backof hand reaches buttocks)]Coughing muscle"-Forced expiration
(i.e. brings shoulders down &backwards)
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Levator scapulae c1-c4:posterior tubercles @transverse Drocesses
Scapula: Superior angle
Dorsal scapular n(brach'al plexus)
Dorsal scapular Scapula:-elevates while rotating inferioranole mediallv
Rhomboideus minor c6-7 Scapula: Medial marginf near s{lnraqninorrs fossa)
Dorsal scapular Scapula:-elevates-retracts back to vertebralcolumn-presses onto thoracic wall
If paralyzed:=winoed scanula
Rhomboideus major T7-4iSpinous process
Scapula: Medial margin(near infraspinous fossa)
Dorsal scapular
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gecl-us carpihr G;SHORT MUSCLES OF THE NECK
THORACOHUMERAL MUSCLES
INTERCOSTAL MUSCLES
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M: o: I: N: A: F:Rectus capitis posteriormrnor
Atlas: A. tubercle I. nuchal line: M, part
Suboccipital nAll these muscles work in
parrs to...EXTEND THE HEAD
Rectus capitis posteri0r Axis: spinous process I. nuchal line: middle oart Rotate face to same side
Obliouus caDitis suDerior Atlas: transverqe nrocesqs L nuchal line: L. Dart Bend head to same sideObliouus caDitis inferior Axis: sDinorJs Drocess Atlas: transverse Drocess Rotate face to same side
M: o; r: N: Al F:Pectoralis major Clavicular part:
Medial 1/3
Abdominal part:S, part of rectus sheath
Sternocostal paft:Manubr,um & body of sternumRib 2-7 (costal cartilaoe)
Humerus:crest of greater tubercle
M. & L. pectoral n.(brachial plexus)
Thoracoacromiala. (pectoral br.)
Glenohumeral j.:-Flexion // Extension-Adduction-Medial rotation
-accessory respiratory m. (ifarms are fixed) z.;' f ,. I d w, r a
Pectoralis mlnor Rib 2-5 (near costal cartilage) Scapula : Coroeoid process M. pectoral n,(brachial olexus)
Thoracoacromiala. (Dectoral br-)
Scapula:Lowers & nrofracfs
Subclavius Rib 1: junction between bone &cartilage
Clavicle: subclavian groove Nerve to subclavius(brachial plexus)
Thoracoacromiala,(clavicular br.)
Clavicle: lowers & mediallv
Serratus anterior 9/10 slips from rib 1-8/9
(usually 2 slips from rib 2)
Scapula (A, surface):-M. margin-L angle
Long thoracic n,(brachial plexus)
Upper part:LAT thoracic a.
Lower part:Thoracodorsal a,
-press scapula onto thoracicwall-elevate arm beyond 90x-accessory respiratory m. (ifshoulder is fixed)
If paralysed:-winged scapula-arms X elevate bevond 90x
M: Or N! A: F:Intercostal externus(intercostales externi)
(so. : Intercostalis externus)
Upper rib: l, margin Lower rib: S, margin
intercostal n.
Forced inspiration
Intercostal Internus(intercostales interni)
Lower rib: S. margin Upper rib: I. margin Expiration "subcostal" if extends overseveral segments;"intercartilaginous" if @reoion of costal cartilaoes
Intercostal intimus(intercostales intimi)
Lower rib: S, margin Upper rib: behind costaloroove
Expiration
Transversus thoracis Body of sternum & xiphoidDrocess: P. surface
Rib 2-6:Costal cartilace
Expi ration
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SPlNOCOSTAL MUSCLES
SPINOTRANSVERSE MUSCLES
SACROSPINAL MUSCLES
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Serratus posteriorsuDerior
C6-T4:Soinous r
Rib 2-5:lateral to costal anole
Intercostal n.
Lift ribs lOO: see 6, take 4
Serratus Dosterior inferior T1 1 -12:SDinous orocess
Rib 9-12 Lowers libs Take 11, leave 2
Levator costae (Levatorescosta rum )
c7-Ttt"Transverse orocess
Ribs (below):costal tubercle
Lift ribs The 7-11 muscle
M: o: I: N: Ai F:SDleniusSplenius capitis c3-T3:
Spinous processMastoid processSuperior nuchal lineflateral Dart) Spinal n.
(dorsal br.)
Both: lift headOne: rotate head on same sideAlso: support other intrinsicmuscles of the back
Ahoj, capt! March 3 by 3,followsternocl€idomastoid!
Splenius cervicis T4-6:Soinous orocess
at -?.Transverse
Kept on marching.,.,.ooDs foroot sth!
MI o: ll N! A: F:Iliocostalis) Iliocostalis lumborum Sacrum
Iliac crest: Ext lipThoracolumbar fascia
Upper LV: costal processRib 6-12
Spinal n.(dorsal br.)
ERECTOR SPINAE M.(the SUPERFICIAL GP.)
-extend head & vertebralcolumn-LAT flexion of vertebral column-turn head to contracting side
) Iliocostalis thoracis Rib 6-12:Costal anole
Rib 1-6
) Iliocostalis cervicis Rib 3-6:Costal anole
Upper CV:
Lonoissimus) Longissimus thoracis bacrum
LV: spinous processMedially:TV: transverse processLV: accessory process
Laterally:RibsLV: costal processThoracodorsal fascia (deeplaver)
) Longissimus cervicis T1-6:Transverse orocess
c2-5:Transverse orocess
t Longissimus capitis c4-T5:Transverse Drocess
Mastoid process
SPINOSPINAL MUSCLES (SYSTEM OF STRAIGHT MUSCLES)
TRANSVERSOSPTNAL MUSCLES (SYSTEM OF OBLIQUE MUSCLES)
M: Oi I! Nl A: F:SDinalis
Spinal n.(dorsal br.)
) Spinalis cervicis C.4-C7iSoinous orocess
LZ-LJ:SDinor rq
See:
ERECTOR SPINAE M.(the DEEP GP,)
See door to heaven,.,..,see shoe on tree
all function to stabilizeadjacent vertebrae duringmovements of vertebralcolumn to allow moreeffective action of largemuscre 9roups
) Spinalis thoracis Lower TV & upper CV:Soinous nrocess
Upper TV:Sninnr r< n
IntersDinalesSpinal n.
(dorsal br. )
+ IntersDinales cervicis Between spinous processes of CV Extension of CV column) Intersninales thoracis Between sDinous Drocesses of TV Extension of TV columnInterspinales lumborun Between sDinous Drocesses of LV Extension of LV columnIntertransversarii) ANT. - cervicis Between adjacent CV:
ANT. tubercle (O transverse DrocessesCervical plexus Abducts CV
) POST. - cervicis Between adjacent C2-7:POST. tubercle @ transverse Drocesses
Spinal n,(dorsal br.)
Abducts CV
) MED, - lumborum Between adjacent LV:Mamillarv Drocess & accessoru nrocesq
Spinal n.(dorsal br.)
) LAT. - lumborum Between adjacent LV:Costal Drocesses
Lumbar plexus
M: o: I: Ni A! F:Semispinalis thoracis etcervicis
TVi transverse Drocess C2-T6: spinous process
(ZA says: fromC2-ft2,skio 4tn -sth vertebrae)
Spinal n.(dorsal br.)
See shoe, scared! Takestickt
All transversospinal muscleshave this function:
) both sides:extend backbone
) one side:rotate backbone to oppositeside,
Semispinalis capitis Lower CV:Articular processUpper TV:Transverse process
Squamous part of occipitalbone (between S. & Lnuchal lines)
Both: lift head
One: tilt head upwards to side(wiping chin on sleeve action)
Multifidus(Multifidi)
Lower CV:Articular process
TV:Transverse process
LV:Mamillary process
Sacrum:PncfFridr <r rrfaaa
(Higher) spinous process
Rotatores- cervicis- thoracis- lumborum
CV: transverse proc.TV: transverse proc.LV: mamillary proc.
(Same level & higher)sprnous process
ABDOMINAL MUSCLES (also: defecation & labour)
DEEP ABDOMINAL MUSCLES
ANTERIOR / MEDIAL GROUPM! o: Ii N: Ai F:
Rectus abdominis Rib 5-7: near costal cartilageXiphoid process
-3 tendinous intersections(only A. surface of muscleattaches to it)-pubic tubercle-qvmnhvsiq nr rhi<
Intercostal n.(abdominal br.)
-COMPRESS ABDOMINALCONTENTS.FLEX TRUNK // PELViS-tenses abdominal wall
Pyramidalis
I ATFRAI CJ
-pubic tubercle-svmDhvsis nrlbis
Linea alba Intercostal n.(abdominal br.)
Tenses linea alba
Obliouus externus abdominis Slips from rib 5-12 Aponeurosis (A, part ofrectus sheath)Linea alballiac crest (ext. lip)Inouinal lio.
Intercostal n.(abdominal br.)
-COMPRESS ABDOMINALCONTENTS.FLEX TRUNK // PELVIS-Turn A. abdomen to OPPOSITESIDE!!!
Obliouus internus abdominis fliac crest (intermediate line)Iliac spine A,S.Inguinal ligamentThoracolumbar fascia (deeplayer)
Aponeurosis (A. & P. partof rectus sheath)t A, part completelycovers abdt P. part ends below navel
arcuate lineLinea albaLast 3 ribs: I. marain
-rntercostal n.(abdominal br.)-iliohypogastric n.-ilioinguinal n.-genitofemoral n.
.COMPRESS ABDOMINALCONTENTS-FLEX TRUNK // PELVIS-Turn A. abdomen to SAMESIDE! ! !
Transversus abdominis Iliac crest (inner. tip)Iliac spine A.S.Inguinal ligamentThoracolumbar fascia (deeplayer)Sfips from rib 7-t2
Aponeurosis (P. part ofrectus sheath)Linea alba
intercosta I
(abdominal br.)-iliohypogastric n.-ilioinguinal n.-(genitofemoral n.)
-COMPRESS ABDOMINALCONTENTS
Cremaster Fibers from int, abd. obl. &trans. abd.
Guy: envelops spermaticcoroGirl: envelops roundlidampnt nf I rtarr rc
-genital br. ofgenitofemoral n,
Raises testis towards body whencool env to orevent loss of heat(to promote spermatogenesis)
M: o: I: Ni A: F,.Psoas major Deep part:
TL2-L4lLateral sudacesintervertebral discs
Superficial part:L 1-L5:Costal Drocesses
Lesser trochanter (asIliopsoas)
Lumbar plexus Hip joint:-Flexion-Adduction-Lateral rotation
Trunk:Lateral flexion
Psoas minor T12-11:Lateral su#acesIntervertebral discs
Iliopubic eminence,radiates into iliopectinealarch
Lumbar plexus Trunk:Lateral flexion
Quadratus lumborum
(ZA says:this is POSTERIOR GROUP ofABDOMINAL MUSCLES)
Iliac crest (inner lip) Rib 12L1-L4: #processes
Jro*tt*ivt
Lumbar plexusSubcostal n,
Lowers rib 12Lateral flexion of trunk