1. KIN * 3090 Worksite Project
Stepwise Dissectionof posteriormusculature of the back withSuboccipital Triangle Showcase
LatissimusDorsi
Cleaned,cutalongorigin(spinousprocessof T8-
T12, thoracolumbarfascia,posterior iliac
crest,separatedfromSerratusPosterior
inferior) andreflectedlaterally.
Trapezius
Cleaned,cutalongorigin(external occipital
protuberance,medial3rd
of nuchal line,spinous
processof T1-T12) andportionof insertion
(medial 3rd
of spine of scapula) andreflected
laterally
Rhomboid Major
Cut alongorigin(spinousprocessof T1-T4) and
reflectedlaterally
Rhomboid Minor
Cut alongorigin(spinousprocessof C7and T1)
and reflectedlaterally
Thoracolumbar Fascia
Removedall thoracolumbarfasciatoexpose
erectorspinae

2. Serratus PosteriorSuperior
Cut alongorigin(Spinousprocessof C7-T3) and
reflectedlaterally
Serratus PosteriorInferior
Cut alongorigin(T12-L3) andreflectedlaterally
SpleniusCapitis
Cut alongorigin(Spinousprocessof C7-T4) and
reflectedsuperiorly
LigamentumNuchae
Cut alongspinousprocessof C7-C1 andreflected
superiorly
SpleniusCervicis
Cut alongoriginof spinousprocessesof T3-T6
and reflected superio-laterally.

3. Ilocostalis
Cut alonginsertions(transverseprocessesof C4-
C6, rib angle 1-12 ) reflectedinferiorly
Longissimus
Cut alonginsertionsof spinousprocessesof T1-
T12 and tuberclesof ribs1-12) and reflected
inferiorly
LongissimusCapitus
Cut alongoriginof transverse processesof T1-T5
and reflectedsuperiorly
Semi-spinalisCapitus
Cut alongthe originsat transverse processesof
C7-T7, the articularprocessesof C4-C6 and
reflectedsuperiorly
Subooccipital Triangle - Rectus CapitusPosterior
Major, Rectus Capitus PosteriorMinor,Superior
Obliques,InferiorObliques
Cleanedof fasciaandshowcased

4. Laminectomy ofT2 – T8 vertebrae
Cut withreciprocatingsawalonglaminaof T2-T8
on bothsidesandremoved,cut opendura mater
to reveal spinal cord.
Reflection
I tookan interestinanatomymanyyearsago, buthad limitedexperience ineducation.Iwasintroduced
to higherlevel learninginCollege andIbecame evenmore interestedinanatomy.Once acceptedtothe
bridge semesterof GuelphHumberUniversity,Iwasexcitedtoknow thatour anatomyclasshad a
practical componentat a cadaverlab usingreal specimens.Itooka keeninterestinthisaswe couldsee
actual anatomyinsteadof perfecttextbookrenderings.Itooksuchan interestthatI decidedtotry a
placementatthat verylab,hopingtodo my owndissection.Iwasable tobe placedthere anddecided
to do a dissectionof backmuscles.Iwasquickto learnas I dove rightinwithoutmuchguidance,Ihad
previousexperience asabutch soI was able to transferthose skillstodissecting.Iwasmetwitha few
obstacles,the firstbeingthe separationof the latissimusdorsi fromthe serratusposteriorinferior.This
was a verytedioustask,the muscle tissue of the serratusposteriorinferiorwasextremelyfragile and
the tendonseemedtobe fusedwiththe more superficial tendonof the latissimusdorsi.Althoughthis
task wasdifficult,Itookmytime andmanagedto overcome thisobstacle.Thisgave me hope and
confidence thatIwouldbe able tocomplete mydissectionwithgoodtime andquality.Uponcompletion
of the whole dissection,mysupervisoradvisedme thatI dida great job, well enoughthatthisspecimen
will be usedtoteach3rd
and 4th
yearanatomystudents. Iam grateful thatI, the firstGuelph-Humber
representative tobe placedatthe GuelphUniversityanatomylab,have deliveredqualityworkthatwill
showcase GuelphHumberstudentpotential.