Muscles Of Trunk & Abdomen
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SPINOHUMERAL MUSCLES
Ml Trapezius
Ol Descending part: Superior nuchal line, external occipital protuberance, nuchal ligament
Il Clavicle: lateral 1/3
N: Accesory n,
Acromion
Cervical plexus
A! Darsal scapular
a. (from transverse cervical a.)
F:
Scapula: -Elevation / Depression -Retraction -Rotation
Spine of scapula
Transverse part: C7-T3: -sprnous process -supraspinous ligaments
At 7 o'clock, I'll climb a 3,
Ascending part:
f3-L2i -
Latissimus dorsi
Vertebral part: T6-12i -spinous process -interspinous ligaments L1 -5 (via thoracolumbar fascia) -spinous process -interspinous ligaments
Humerus:
Thoracodorsal n,
Thoracodorsal
a. (from crest of lesser tubercle
(brachial plexus)
intertubercular sulcus
subscapular a.) Dorsal scapular
a. (from
:
transverse ceruical a.)
iliac part: Iliac crest
Glenohumeral joint: -Medial rotation -Adduction -Extension -Transverse extension (until back of hand reaches buttocks) ]Coughing muscle" -Forced expiration
(i.e. brings shoulders down & backwards)
costal paft: Rib 10-12 Scapular part: Inferior anole Levator scapulae
c1-c4: posterior tubercles
Rhomboideus minor Rhomboideus major
Scapula: Superior angle
transverse Drocesses c6-7
T7-4i Spinous process
Dorsal scapular
Scapula:
Dorsal scapular
anole mediallv Scapula:
Dorsal scapular
-elevates -retracts back to vertebral
-elevates while rotating inferior
@
Scapula: Medial margin f near s{lnraqninorrs fossa) Scapula: Medial margin (near infraspinous fossa)
Dorsal scapular n (brach'al plexus)
column -presses onto thoracic wall
If paralyzed: =winoed scanula
Lar tua
qI\ t^
{ft} {-la. rn
*n,rnt l
no^'ry,:;yy
RcFal C,A( h', G', gecl-us carpihr G;
o"
At\fi,, . kfun,,'itrx Twaytc
SHORT MUSCLES OF THE NECK
C,'o;1 t't
t.4,tr;-'L (fu,aw1)
,or1t
1l
cr
o:
I:
M: Rectus capitis posterior mrnor Rectus capitis posteri0r
Atlas: A. tubercle
I. nuchal line: M, part
Axis: spinous process
I. nuchal line: middle oart
Obliouus caDitis suDerior Obliouus caDitis inferior
Atlas: transverqe nrocesqs Axis: sDinorJs Drocess
L nuchal line: L.
UQ)
,alai
+un-
)
f
N:
il n.rl
h,:,a
loc,t;,zl
nuql2'l
t^la trLqd I
A:
F:
Rotate face to same side
Suboccipital n
Dart Atlas: transverse Drocess
Bend head to same side Rotate face to same side
All these muscles work in parrs to... EXTEND THE HEAD
THORACOHUMERAL MUSCLES
o;
M: Pectoralis major
r:
Clavicular part: Medial 1/3
Humerus: crest of greater tubercle
N: M. & L. pectoral n. (brachial plexus)
Al Thoracoacromial
a. (pectoral br.)
Abdominal part: S, part of rectus sheath Sternocostal paft: Manubr,um & body of sternum Rib 2-7 (costal cartilaoe) Rib 2-5 (near costal cartilage)
Pectoralis mlnor Subclavius
Serratus anterior
F:
Glenohumeral j.: -Flexion // Extension -Adduction -Medial rotation -accessory respiratory m. (if arms are fixed) z.;' ,. I d w, r a f
Scapula : Coroeoid process
Rib 1: junction between bone & cartilage
Clavicle: subclavian groove
9/10 slips from rib 1-8/9
Scapula (A, surface): -M. margin -L angle
M. pectoral n, (brachial olexus) Nerve to subclavius (brachial plexus)
Thoracoacromial
a. (Dectoral br-) Thoracoacromial
Scapula: Lowers & nrofracfs Clavicle: lowers & mediallv
a,
(clavicular br.) (usually 2 slips from rib 2)
Long thoracic n, (brachial plexus)
Upper part: LAT thoracic a.
Lower part: Thoracodorsal a,
-press scapula onto thoracic wall -elevate arm beyond 90x -accessory respiratory m. (if shoulder is fixed)
If paralysed: -winged scapula
-arms X elevate bevond 90x INTERCOSTAL MUSCLES
M:
Or
Intercostal externus (intercostales externi)
Upper rib:
l,
A:
N! Lower rib: S, margin
margin
F: Forced inspiration
(so.
: Intercostalis externus) Intercostal Internus (intercostales interni)
Lower rib: S. margin
Upper rib:
Lower rib: S, margin
Transversus thoracis
Body of sternum & xiphoid Drocess: P. surface
Upper rib: behind costal oroove Rib 2-6: Costal cartilace
.i "C6
/@
€0, \^(r
"subcostal" if extends over
Expiration
several segments;
intercostal n.
Intercostal intimus (intercostales intimi)
9:dle.n,,,t,
I. margin
trrt^rved..
t X- U
f
' @ r.".Le
'r4,1'a,.'m-r12
I
t*,+ '-f
&t-prsz.
fn€r-C(g-(
- (L
ta4 rrrr.,*,::
f{oryJir(
:
{9tlk'Jbr
-O irnf*U,
'1f+nl'
recllzac *irl.r;,1*
Expiration Expi ration
6nricul
g{r;ui..r
{^ajl4r f.(t vr'!, i1
{S* .ir iarJ" n
"intercartilaginous" if @ reoion of costal cartilaoes
t
(
U
rvlit
dt{[
r.rli:"e 2nil
,,r b
'tY* 1011",,,-r
capiht
ts 'Lb | "ft;lLltwi:st
&
ra[fi
€F+T
rrt<,rxl"b
s*tl.aJ-r+*r*+
SPlNOCOSTAL MUSCLES
C/L/l, ktr.4.
C6-T4: Soinous r T1 1 -12: SDinous orocess
<-n^;.*J
bc.ttlcJ trrs(ua [(&\]-it{-ri q;t.,Aat +
f
**"1
(€';
c,nn,)
fie* 1*u rn
€, i!.X€'iu,ri_.1-Lr(ve-.re '--- r'' fwva&-r :t -(S+ is --tl r"".lri " Qj'r,"#";;&/ , [,c+rvL"q ir*.rpnt (f-i6 *t borl_iel Tf *T3 doCij./
:r-ct
o:
Ml Serratus posterior suDerior Serratus Dosterior inferior
FvD(t;J{i
Il
.). t --tn4ka,^,) flt1t
Al
Nl
r*zr:a{
F:
Rib 2-5:
Lift ribs
lOO: see 6, take 4
Lowers libs
Take 11, leave 2
Lift ribs
The 7-11 muscle
lateral to costal anole Rib 9-12
Intercostal n.
Levator costae (Levatores
c7-Ttt"
Ribs (below):
costa rum )
Transverse orocess
costal tubercle
SPINOTRANSVERSE MUSCLES
o:
M:
I:
N:
Ai
SDlenius Splenius capitis
Splenius cervicis
c3-T3: Spinous process
Mastoid process Superior nuchal line flateral Dart)
T4-6:
at -?.
Soinous orocess
Transverse
F:
Both: lift head One: rotate head on same side Also: support other intrinsic muscles of the back
Spinal n.
(dorsal br.)
SACROSPINAL MUSCLES
o:
MI
Iliocostalis
)
Iliocostalis lumborum
Sacrum
Iliac crest: Ext lip
)
Iliocostalis thoracis
)
Iliocostalis cervicis
Thoracolumbar fascia Rib 6-12: Costal anole Rib 3-6: Costal anole
ll
N!
Longissimus thoracis
bacrum LV: spinous process
Rib 1-6 Upper CV:
ERECTOR SPINAE M.
(the SUPERFICIAL GP.) Medially:
TV: transverse process LV: accessory process
Laterally: Ribs
LV: costal process Thoracodorsal fascia (deep laver)
)
Longissimus cervicis
t
Longissimus capitis
T1-6:
c2-5:
Transverse orocess
Transverse orocess Mastoid process
c4-T5: Transverse Drocess
F:
Upper LV: costal process Rib 6-12
Lonoissimus
)
A:
Spinal n.
(dorsal br.)
-extend head & vertebral column -LAT flexion of vertebral column -turn head to contracting side
Ahoj, capt! March 3 by 3,
follow
sternocl€idomastoid! Kept on marching., .,.ooDs foroot sth!
SPINOSPINAL MUSCLES (SYSTEM OF STRAIGHT MUSCLES)
M:
Oi
I!
Nl
SDinalis
)
)
Spinalis cervicis
C.4-C7i
Spinalis thoracis
Soinous orocess Lower TV & upper CV: Soinous nrocess
LZ-LJ: SDinor rq
A:
ERECTOR SPINAE M. DEEP GP,)
(the
Sninnr r< n
IntersDinales
+ IntersDinales cervicis ) Intersninales thoracis Interspinales lumborun
Between spinous processes of CV Between sDinous Drocesses of TV Between sDinous Drocesses of LV
Spinal n. (dorsal br. )
Extension of CV column Extension of TV column Extension of LV column
Intertransversarii
)
ANT.
)
POST.
)
MED,
)
LAT.
-
cervicis
-
-
cervicis lumborum
lumborum
to heaven,., ..,see shoe on tree
See door
See:
Spinal n. (dorsal br.)
Upper TV:
F:
Between adjacent CV: ANT. tubercle (O transverse Drocesses Between adjacent C2-7: POST. tubercle @ transverse Drocesses Between adjacent LV: Mamillarv Drocess & accessoru nrocesq Between adjacent LV: Costal Drocesses
Cervical plexus
Abducts CV
Spinal n, (dorsal br.) Spinal n.
Abducts CV
all function to stabilize adjacent vertebrae during movements of vertebral column to allow more effective action of large muscre 9roups
(dorsal br.) Lumbar plexus
TRANSVERSOSPTNAL MUSCLES (SYSTEM OF OBLIQUE MUSCLES)
M: Semispinalis thoracis et cervicis
Semispinalis capitis
o:
C2-T6: spinous process
Lower CV:
(ZA says: fromC2-ft2, skio 4tn -sth vertebrae) Squamous part of occipital bone (between S. & L nuchal lines)
Articular process Upper TV: Transverse process Multifidus
(Multifidi)
I:
TVi transverse Drocess
Lower CV: Articular process
One: tilt head upwards to side (wiping chin on sleeve action)
All transversospinal muscles have this function:
) both sides: extend backbone )
one side:
rotate backbone to opposite side,
Mamillary process
Rotatores - cervicis - thoracis - lumborum
Both: lift head
(dorsal br.)
LV:
F:
stickt
Spinal n.
Transverse process
A!
See shoe, scared! Take
(Higher) spinous process
TV:
Sacrum: PncfFridr
Ni
rrfaaa
CV: transverse proc. TV: transverse proc. LV: mamillary proc.
(Same level & higher) sprnous process
ABDOMINAL MUSCLES (also: defecation & labour) ANTERIOR
/
MEDIAL GROUP
M! Rectus abdominis
Pyramidalis
o:
Ii
Rib 5-7: near costal cartilage Xiphoid process
-3 tendinous intersections (only A. surface of muscle
-pubic tubercle
attaches to it) -pubic tubercle -qvmnhvsiq nr rhi< Linea alba
-svmDhvsis nrlbis I ATFRAI CJ Obliouus externus abdominis
Obliouus internus abdominis
Slips from rib 5-12
fliac crest (intermediate line) Iliac spine A,S. Inguinal ligament Thoracolumbar fascia (deep layer)
Aponeurosis (A, part of rectus sheath) Linea alba lliac crest (ext. lip) Inouinal lio. Aponeurosis (A. & P. part of rectus sheath) t A, part completely covers abd t P. part ends below navel
N:
Ai
Intercostal n. (abdominal br.)
F: -COMPRESS ABDOMINAL CONTENTS .FLEX TRUNK // PELViS
-tenses abdominal wall
Intercostal n. (abdominal br.)
Tenses linea alba
Intercostal n. (abdominal br.)
-COMPRESS ABDOMINAL CONTENTS .FLEX TRUNK // PELVIS -Turn A. abdomen to OPPOSITE
SIDE!!!
-rntercostal n. (abdominal br.) -iliohypogastric n. -ilioinguinal n. -genitofemoral n.
.COMPRESS ABDOMINAL CONTENTS -FLEX TRUNK PELVIS
intercosta I (abdominal br.)
-COMPRESS ABDOMINAL CONTENTS
//
-Turn A. abdomen to SAME SIDE!
! !
arcuate line Transversus abdominis
Iliac crest (inner. tip) Iliac spine A.S. Inguinal ligament Thoracolumbar fascia (deep layer) Sfips from rib 7-t2 Fibers from int, abd. obl. & trans. abd.
Cremaster
Linea alba Last 3 ribs: I. marain Aponeurosis (P. part of rectus sheath) Linea alba
Guy: envelops spermatic coro
-iliohypogastric n. -ilioinguinal n. -(genitofemoral n.) -genital br. of genitofemoral n,
Raises testis towards body when cool env to orevent loss of heat (to promote spermatogenesis)
Girl: envelops round lidampnt nf I rtarr rc DEEP ABDOMINAL MUSCLES
o:
M: Psoas major
Deep part:
TL2-L4l
I: Lesser trochanter (as Iliopsoas)
Ni Lumbar plexus
Psoas minor
Quadratus lumborum (ZA says: ABDOMINAL MUSCLES)
joint:
-Lateral rotation Trunk: Lateral flexion
Iliopubic eminence, radiates into iliopectineal arch Rib 12
L1-L4: this is POSTERIOR GROUP of
F,.
Hip
-Flexion -Adduction
Lateral sudaces intervertebral discs Superficial part: L 1-L5: Costal Drocesses T12-11: Lateral su#aces Intervertebral discs Iliac crest (inner lip)
A:
#processes Jro*tt*ivt
Lumbar plexus
Trunk: Lateral flexion
Lumbar plexus Subcostal n,
Lowers rib 12 Lateral flexion of trunk
Ml Trapezius
Ol Descending part: Superior nuchal line, external occipital protuberance, nuchal ligament
Il Clavicle: lateral 1/3
N: Accesory n,
Acromion
Cervical plexus
A! Darsal scapular
a. (from transverse cervical a.)
F:
Scapula: -Elevation / Depression -Retraction -Rotation
Spine of scapula
Transverse part: C7-T3: -sprnous process -supraspinous ligaments
At 7 o'clock, I'll climb a 3,
Ascending part:
f3-L2i -
Latissimus dorsi
Vertebral part: T6-12i -spinous process -interspinous ligaments L1 -5 (via thoracolumbar fascia) -spinous process -interspinous ligaments
Humerus:
Thoracodorsal n,
Thoracodorsal
a. (from crest of lesser tubercle
(brachial plexus)
intertubercular sulcus
subscapular a.) Dorsal scapular
a. (from
:
transverse ceruical a.)
iliac part: Iliac crest
Glenohumeral joint: -Medial rotation -Adduction -Extension -Transverse extension (until back of hand reaches buttocks) ]Coughing muscle" -Forced expiration
(i.e. brings shoulders down & backwards)
costal paft: Rib 10-12 Scapular part: Inferior anole Levator scapulae
c1-c4: posterior tubercles
Rhomboideus minor Rhomboideus major
Scapula: Superior angle
transverse Drocesses c6-7
T7-4i Spinous process
Dorsal scapular
Scapula:
Dorsal scapular
anole mediallv Scapula:
Dorsal scapular
-elevates -retracts back to vertebral
-elevates while rotating inferior
@
Scapula: Medial margin f near s{lnraqninorrs fossa) Scapula: Medial margin (near infraspinous fossa)
Dorsal scapular n (brach'al plexus)
column -presses onto thoracic wall
If paralyzed: =winoed scanula
Lar tua
qI\ t^
{ft} {-la. rn
*n,rnt l
no^'ry,:;yy
RcFal C,A( h', G', gecl-us carpihr G;
o"
At\fi,, . kfun,,'itrx Twaytc
SHORT MUSCLES OF THE NECK
C,'o;1 t't
t.4,tr;-'L (fu,aw1)
,or1t
1l
cr
o:
I:
M: Rectus capitis posterior mrnor Rectus capitis posteri0r
Atlas: A. tubercle
I. nuchal line: M, part
Axis: spinous process
I. nuchal line: middle oart
Obliouus caDitis suDerior Obliouus caDitis inferior
Atlas: transverqe nrocesqs Axis: sDinorJs Drocess
L nuchal line: L.
UQ)
,alai
+un-
)
f
N:
il n.rl
h,:,a
loc,t;,zl
nuql2'l
t^la trLqd I
A:
F:
Rotate face to same side
Suboccipital n
Dart Atlas: transverse Drocess
Bend head to same side Rotate face to same side
All these muscles work in parrs to... EXTEND THE HEAD
THORACOHUMERAL MUSCLES
o;
M: Pectoralis major
r:
Clavicular part: Medial 1/3
Humerus: crest of greater tubercle
N: M. & L. pectoral n. (brachial plexus)
Al Thoracoacromial
a. (pectoral br.)
Abdominal part: S, part of rectus sheath Sternocostal paft: Manubr,um & body of sternum Rib 2-7 (costal cartilaoe) Rib 2-5 (near costal cartilage)
Pectoralis mlnor Subclavius
Serratus anterior
F:
Glenohumeral j.: -Flexion // Extension -Adduction -Medial rotation -accessory respiratory m. (if arms are fixed) z.;' ,. I d w, r a f
Scapula : Coroeoid process
Rib 1: junction between bone & cartilage
Clavicle: subclavian groove
9/10 slips from rib 1-8/9
Scapula (A, surface): -M. margin -L angle
M. pectoral n, (brachial olexus) Nerve to subclavius (brachial plexus)
Thoracoacromial
a. (Dectoral br-) Thoracoacromial
Scapula: Lowers & nrofracfs Clavicle: lowers & mediallv
a,
(clavicular br.) (usually 2 slips from rib 2)
Long thoracic n, (brachial plexus)
Upper part: LAT thoracic a.
Lower part: Thoracodorsal a,
-press scapula onto thoracic wall -elevate arm beyond 90x -accessory respiratory m. (if shoulder is fixed)
If paralysed: -winged scapula
-arms X elevate bevond 90x INTERCOSTAL MUSCLES
M:
Or
Intercostal externus (intercostales externi)
Upper rib:
l,
A:
N! Lower rib: S, margin
margin
F: Forced inspiration
(so.
: Intercostalis externus) Intercostal Internus (intercostales interni)
Lower rib: S. margin
Upper rib:
Lower rib: S, margin
Transversus thoracis
Body of sternum & xiphoid Drocess: P. surface
Upper rib: behind costal oroove Rib 2-6: Costal cartilace
.i "C6
/@
€0, \^(r
"subcostal" if extends over
Expiration
several segments;
intercostal n.
Intercostal intimus (intercostales intimi)
9:dle.n,,,t,
I. margin
trrt^rved..
t X- U
f
' @ r.".Le
'r4,1'a,.'m-r12
I
t*,+ '-f
&t-prsz.
fn€r-C(g-(
- (L
ta4 rrrr.,*,::
f{oryJir(
:
{9tlk'Jbr
-O irnf*U,
'1f+nl'
recllzac *irl.r;,1*
Expiration Expi ration
6nricul
g{r;ui..r
{^ajl4r f.(t vr'!, i1
{S* .ir iarJ" n
"intercartilaginous" if @ reoion of costal cartilaoes
t
(
U
rvlit
dt{[
r.rli:"e 2nil
,,r b
'tY* 1011",,,-r
capiht
ts 'Lb | "ft;lLltwi:st
&
ra[fi
€F+T
rrt<,rxl"b
s*tl.aJ-r+*r*+
SPlNOCOSTAL MUSCLES
C/L/l, ktr.4.
C6-T4: Soinous r T1 1 -12: SDinous orocess
<-n^;.*J
bc.ttlcJ trrs(ua [(&\]-it{-ri q;t.,Aat +
f
**"1
(€';
c,nn,)
fie* 1*u rn
€, i!.X€'iu,ri_.1-Lr(ve-.re '--- r'' fwva&-r :t -(S+ is --tl r"".lri " Qj'r,"#";;&/ , [,c+rvL"q ir*.rpnt (f-i6 *t borl_iel Tf *T3 doCij./
:r-ct
o:
Ml Serratus posterior suDerior Serratus Dosterior inferior
FvD(t;J{i
Il
.). t --tn4ka,^,) flt1t
Al
Nl
r*zr:a{
F:
Rib 2-5:
Lift ribs
lOO: see 6, take 4
Lowers libs
Take 11, leave 2
Lift ribs
The 7-11 muscle
lateral to costal anole Rib 9-12
Intercostal n.
Levator costae (Levatores
c7-Ttt"
Ribs (below):
costa rum )
Transverse orocess
costal tubercle
SPINOTRANSVERSE MUSCLES
o:
M:
I:
N:
Ai
SDlenius Splenius capitis
Splenius cervicis
c3-T3: Spinous process
Mastoid process Superior nuchal line flateral Dart)
T4-6:
at -?.
Soinous orocess
Transverse
F:
Both: lift head One: rotate head on same side Also: support other intrinsic muscles of the back
Spinal n.
(dorsal br.)
SACROSPINAL MUSCLES
o:
MI
Iliocostalis
)
Iliocostalis lumborum
Sacrum
Iliac crest: Ext lip
)
Iliocostalis thoracis
)
Iliocostalis cervicis
Thoracolumbar fascia Rib 6-12: Costal anole Rib 3-6: Costal anole
ll
N!
Longissimus thoracis
bacrum LV: spinous process
Rib 1-6 Upper CV:
ERECTOR SPINAE M.
(the SUPERFICIAL GP.) Medially:
TV: transverse process LV: accessory process
Laterally: Ribs
LV: costal process Thoracodorsal fascia (deep laver)
)
Longissimus cervicis
t
Longissimus capitis
T1-6:
c2-5:
Transverse orocess
Transverse orocess Mastoid process
c4-T5: Transverse Drocess
F:
Upper LV: costal process Rib 6-12
Lonoissimus
)
A:
Spinal n.
(dorsal br.)
-extend head & vertebral column -LAT flexion of vertebral column -turn head to contracting side
Ahoj, capt! March 3 by 3,
follow
sternocl€idomastoid! Kept on marching., .,.ooDs foroot sth!
SPINOSPINAL MUSCLES (SYSTEM OF STRAIGHT MUSCLES)
M:
Oi
I!
Nl
SDinalis
)
)
Spinalis cervicis
C.4-C7i
Spinalis thoracis
Soinous orocess Lower TV & upper CV: Soinous nrocess
LZ-LJ: SDinor rq
A:
ERECTOR SPINAE M. DEEP GP,)
(the
Sninnr r< n
IntersDinales
+ IntersDinales cervicis ) Intersninales thoracis Interspinales lumborun
Between spinous processes of CV Between sDinous Drocesses of TV Between sDinous Drocesses of LV
Spinal n. (dorsal br. )
Extension of CV column Extension of TV column Extension of LV column
Intertransversarii
)
ANT.
)
POST.
)
MED,
)
LAT.
-
cervicis
-
-
cervicis lumborum
lumborum
to heaven,., ..,see shoe on tree
See door
See:
Spinal n. (dorsal br.)
Upper TV:
F:
Between adjacent CV: ANT. tubercle (O transverse Drocesses Between adjacent C2-7: POST. tubercle @ transverse Drocesses Between adjacent LV: Mamillarv Drocess & accessoru nrocesq Between adjacent LV: Costal Drocesses
Cervical plexus
Abducts CV
Spinal n, (dorsal br.) Spinal n.
Abducts CV
all function to stabilize adjacent vertebrae during movements of vertebral column to allow more effective action of large muscre 9roups
(dorsal br.) Lumbar plexus
TRANSVERSOSPTNAL MUSCLES (SYSTEM OF OBLIQUE MUSCLES)
M: Semispinalis thoracis et cervicis
Semispinalis capitis
o:
C2-T6: spinous process
Lower CV:
(ZA says: fromC2-ft2, skio 4tn -sth vertebrae) Squamous part of occipital bone (between S. & L nuchal lines)
Articular process Upper TV: Transverse process Multifidus
(Multifidi)
I:
TVi transverse Drocess
Lower CV: Articular process
One: tilt head upwards to side (wiping chin on sleeve action)
All transversospinal muscles have this function:
) both sides: extend backbone )
one side:
rotate backbone to opposite side,
Mamillary process
Rotatores - cervicis - thoracis - lumborum
Both: lift head
(dorsal br.)
LV:
F:
stickt
Spinal n.
Transverse process
A!
See shoe, scared! Take
(Higher) spinous process
TV:
Sacrum: PncfFridr
Ni
rrfaaa
CV: transverse proc. TV: transverse proc. LV: mamillary proc.
(Same level & higher) sprnous process
ABDOMINAL MUSCLES (also: defecation & labour) ANTERIOR
/
MEDIAL GROUP
M! Rectus abdominis
Pyramidalis
o:
Ii
Rib 5-7: near costal cartilage Xiphoid process
-3 tendinous intersections (only A. surface of muscle
-pubic tubercle
attaches to it) -pubic tubercle -qvmnhvsiq nr rhi< Linea alba
-svmDhvsis nrlbis I ATFRAI CJ Obliouus externus abdominis
Obliouus internus abdominis
Slips from rib 5-12
fliac crest (intermediate line) Iliac spine A,S. Inguinal ligament Thoracolumbar fascia (deep layer)
Aponeurosis (A, part of rectus sheath) Linea alba lliac crest (ext. lip) Inouinal lio. Aponeurosis (A. & P. part of rectus sheath) t A, part completely covers abd t P. part ends below navel
N:
Ai
Intercostal n. (abdominal br.)
F: -COMPRESS ABDOMINAL CONTENTS .FLEX TRUNK // PELViS
-tenses abdominal wall
Intercostal n. (abdominal br.)
Tenses linea alba
Intercostal n. (abdominal br.)
-COMPRESS ABDOMINAL CONTENTS .FLEX TRUNK // PELVIS -Turn A. abdomen to OPPOSITE
SIDE!!!
-rntercostal n. (abdominal br.) -iliohypogastric n. -ilioinguinal n. -genitofemoral n.
.COMPRESS ABDOMINAL CONTENTS -FLEX TRUNK PELVIS
intercosta I (abdominal br.)
-COMPRESS ABDOMINAL CONTENTS
//
-Turn A. abdomen to SAME SIDE!
! !
arcuate line Transversus abdominis
Iliac crest (inner. tip) Iliac spine A.S. Inguinal ligament Thoracolumbar fascia (deep layer) Sfips from rib 7-t2 Fibers from int, abd. obl. & trans. abd.
Cremaster
Linea alba Last 3 ribs: I. marain Aponeurosis (P. part of rectus sheath) Linea alba
Guy: envelops spermatic coro
-iliohypogastric n. -ilioinguinal n. -(genitofemoral n.) -genital br. of genitofemoral n,
Raises testis towards body when cool env to orevent loss of heat (to promote spermatogenesis)
Girl: envelops round lidampnt nf I rtarr rc DEEP ABDOMINAL MUSCLES
o:
M: Psoas major
Deep part:
TL2-L4l
I: Lesser trochanter (as Iliopsoas)
Ni Lumbar plexus
Psoas minor
Quadratus lumborum (ZA says: ABDOMINAL MUSCLES)
joint:
-Lateral rotation Trunk: Lateral flexion
Iliopubic eminence, radiates into iliopectineal arch Rib 12
L1-L4: this is POSTERIOR GROUP of
F,.
Hip
-Flexion -Adduction
Lateral sudaces intervertebral discs Superficial part: L 1-L5: Costal Drocesses T12-11: Lateral su#aces Intervertebral discs Iliac crest (inner lip)
A:
#processes Jro*tt*ivt
Lumbar plexus
Trunk: Lateral flexion
Lumbar plexus Subcostal n,
Lowers rib 12 Lateral flexion of trunk
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