anatomy msk 1

8/17/2019 Anatomy MSK 1

1/45

M U S

C U L O S K E L E T A L

A N A T O M Y

1


2/45

• Superfcial Back

• Gluteus medius/maximus, passage o nerves– sacral plexus,compartment system

• Muscles promoting action o the hip

• The shoulder

• The rist/ hand


3/45


4/45

STRUCTURE OF THE BACK

!erte"rae

• The verte"ral column consists o ## "ones$• 7 cervical

• 12 throacic

• 5 l!"ar

• 5 #acral $%#e&'

• ( cocc)*eal $%#e&'


5/45

STRUCTURE OF THE +ERTEBRAL BO,Y


6/45

KEY CHAN-ES .N +ERTEBRAL ANATOMY

%ervical Thoracic &um"ar

!erte"ral "ody S!all a/& 0i&e Heart#hae& Ma##ive3 4i&/e)#hae&

!erte"raloramen

Lar*e a/& tria/*lar S!aller a/&circlar

Transverse'rocess

Fora!i/a tra/#ver#ariico/tai/ verte"ralarterie# ve/o# a/&#)!athetic le6#$C1C' C7 tra/#!it#

#!all acce##or) vei/#

Lo/* a/& #tro/*e6t/e&o#terolaterall)

(rticular'rocesses

Nearl) verticalarticlar %acet#

Spinous

processes

Short $C85'

Bifd )%#*+Lo/* $C7' verte"ra

Lo/* #loe

o#terolaterall)

Thic4 a/& #tr&)

hatchet #hae&


7/45

E9AM:LE ;


8/45


9/45

ATLAS AN, A9.S BONES OF THE NECK


10/45

+ERTEBRAL SURFACE ANATOMY

• %- verte"ral spine is the most prominent on .exion o the

neck• (la o the iliac crest is located at


11/45

MA>OR L.-AMENTS OF THE S:.NALCOLUMName the 0oints$

(nulus f"rosis

1ygapophyseal 0oint

&igamentum .avum

'osterior longitudinal ligament

(nterior longitudinal ligament


12/45

MUSCLES OF THE BACK

2xtrinsic Muscles$

• Trape3ius

• &atissimus dorsi

• &evator scapulae

• 4hom"oids

4eceive input rom the anterior rami o the cervical nerves

5ntrinsic Muscles$

• 2nclosed "y deep ascia

• Superfcial, intermediate and deep layers


13/45

E9TR.NS.C MUSCLES OF THE BACK

• 6hat are they7

• 5ndividual modes o action7• erve supply7


14/45

SU:ERF.C.AL .NTR.NS.C MUSCLES OF THE BACK


15/45

.NTERME,.ATE .NTR.NS.C MUSCLES OF THE BACK


16/45

,EE: .NTR.NS.C MUSCLES OF THE BACK


17/45

:RACT.CE ;?S

• 6hich muscles are involved in lateral .exion o the thoracic

spine7• 6hich muscles are involved in orard .exion o the spine7


18/45

ANATOMY OF THE :EL+.S


19/45

THE ACETABULUM


20/45

L.-AMENTS OF THE H.:


21/45


22/45


23/45

FRACTURES OF THE FEMUR

• 8ne o the most common orthopaedic presentations

• 9ou ill see a lot o this in the repat

• The neck o the emur is the most commonly ractured as itis the narroest and eakest part o the emur, as ell as"eing at the line o eight "earing:

• 8ther ractures include intertrochanteric racture)stum"ling or stepping don hard and transcervical

)middle o the neck


24/45

MA>OR MUSCLES ACT.N- ON THE H.:

Movements o the hip include$

•;lexion

• 2xtension

• 2xternal rotation

• 5nternal rotation

• ("duction

• (dduction


25/45

OR FLE9ORS OF THEH.:=


26/45

MA>OR FLE9ORS OF THE H.: >O.NT

.lio#oa#

:#oa# !i/or @:#oa# [email protected]#

Sartori# $le##er e6te/t'


27/45

MA>OR E9TENSORS OF THE H.:-LUTEUS MA9Gluteus maximus < extension and lateral rotation o the thigh

'roximal attachment < ilum posterior to gluteal line, posteriorsurace o the sacrum and coccyx

=istal attachment < ilioti"ial tract hich mostly inserts intothe lateral condyle o the ti"ia


28/45

H.: E9TENSORSKNEE FLE9ORSHAMSTR.N-S• Semitendinosus )5schial tu"erosity – )superior ti"ia

•

Semimem"ranosus )5schial tu"erosity – )medical condyle othe ti"ia

• Biceps emoris )5schial tu"erosity > linea aspera – )lateralside head o f"ula

The hamstrings are uni?ue in that they cross @ diAerent 0oints,hy is this important7


29/45


30/45

AB,UCTORS OF THE TH.-H

• Gluteus medius

•

Gluteus minimus• Tensor ascia latae

)("duction o a .exed thigh, lateral rotation o an extendedthigh

•'iriormis )pear

• 8"turator internus

• Superior and inerior gemelli


31/45

TREN,ELENBUR-?S TEST

• 6hat is it7

•

6hich muscles are aAected7• 'aralysis o hich nerve causes this sign7


32/45

A,,UCTORS OF THE TH.-H

8rigins typically the ischiopu"ic ramus o the pelvis:(ttachments are along the medial edge o the emur

• (dductor longus

• (dductor "revis

• (dductor magnus

• Gracilis

•8"turator externus


33/45

COM:ARTMENTS OF THE TH.-H

o do e remem"er the nervous supply/action o all thesemuscles7C7C7C


34/45


35/45

(nterior compartment$ Fe!oral Nerve

Medial compartment$ o"trator /erve

'osterior compartment$ Sciatic /erve


36/45

-ENERALLY S:EAK.N-

(nterior compartment$ .exors o the hipD extensors o the knee

Medial compartment$ adductors o the thigh

'osterior compartment$ extensors o the thigh, .exors o theknee


37/45

,.+.,E, BY .NTERMUSCULAR SE:TA

S O - S O


38/45

THE SHOUL,ER L.-AMENTS OF THESHOUL,ER


39/45


40/45

MUSCLES AFFECT.N- THE SHOUL,ER

• Main movements o the shoulder7

•

6hat muscles create those movements7• 6hat are their proximal/distal attachments7

• nerve supply7


41/45

FOSSA OF THE SKULL


42/45


43/45

.M:ORTANT STRUCTURES OF THE SKULL

• Sutures o the skull )&am"doid, coronal, sagittal

•

6hich sutures/"ones make up the pterion, hy is itimportant7

• Structure o the sphenoid "one, "e a"le to la"el it

• Bones that make up the or"its o the eyes

HAN,Y MNEMON.CS FOR REMEMBER.N-


44/45

HAN,Y MNEMON.CS FOR REMEMBER.N-FORAM.NA OF THE SKULL%leaners only spray smelly stuA right on smelly idiots in

0um"led 0unkyards 0uggled high

%arl only sims south: Silly roger only sims in infniti 0acu33is: Eane 0ust hitchhikes


45/45

THE

anatomy msk 1

Documents