Lecture 6 - Anatomy of the Anterolateral Abdominal Wall and Inguinal Region

8/9/2019 Lecture 6 - Anatomy of the Anterolateral Abdominal Wall and Inguinal Region

1/23

LECTURE 6

ANATOMY OF THE ANTEROLATERAL ABDOMINAL WALL AND INGUINALREGION DR CARL PARSONS

NOTE: these notes ae !o" Ga#$s Anato"# an% ae "oe &o"'ehens()e than Pason$s

REGIONAL ANATOMY

Fo* +*a%ants

N(ne +*a%ants


2/23

ABDOMINAL WALL

Bo*n%a(es:

S*'e(o,# -# .('ho(% 'o&ess an% &osta, "a/(ns

Poste(o,# -# )ete-a, &o,*"n

In!e(o,# -# *''e 'ats o! 'e,)(& -one

La#es &ons(st o!:

S0(n

S*'e1&(a, !as&(a 2s*-&*taneo*s t(ss*e3

M*s&,es an% the( asso&(ate% %ee' !as&(as

E.ta'e(tonea, !as&(a

Pa(eta, 'e(tone*"

SUPERFICIAL FASCIA

A ,a#e o! !att# &onne&t()e t(ss*e4 It (s *s*a,,# a s(n/,e ,a#e s("(,a to5 an% &ont(n*o*s

(th5 the s*'e1&(a, !as&(a tho*/ho*t othe e/(ons o! the -o%#4 Hoe)e (n ,oe e/(on

o! ante(o 'at o! a-%o"(na, a,,5 -e,o *"-(,(&*s5 (t !o"s 7 ,a#es:

Superfcial atty layer

Deep membranu! layer

SUPERFICIAL FATTY LAYER

A,so 0non as "amper#! a!cia

Conta(ns atan% )a(es (n th(&0ness

In "en5 th(s s*'e1&(a, ,a#e &ont(n*es o)e 'en(s an%5 a!te ,os(n/ (ts !at an%

!*s(n/ (th %ee'e ,a#e o! s*'e1&(a, !as&(a5 &ont(n*es (nto the s&ot*" hee (t

!o"a s'e&(a,(se% !as&(a, ,a#e &onta(n(n/ s"ooth "*s&,e 1-es 2%atos !as&(a3

In o"en5 th(s s*'e1&(a, ,a#es eta(ns so"e !at an% (s a &o"'onent o! the ,a-(a

"a8oa


3/23

DEEPER MEMBRANOUS LAYER

A0a Scarpa#! a!cia

T$in an% membranu!& cntainin' little t n at

In!e(o,#5 (t &ont(n*es (nto the th(/h

9*st -e,o (n/*(na, ,(/a"ent5 (t !*ses (th the %ee' !as&(a o! the th(/h

At "(%,(ne5 (t (s atta&he% to the linea alba an% pubic !ymp$y!i!

Ante(o 'at atta&he% to (s&h(o'*-(& a"( an% 'oste(o "a/(n o! the 'e(nea,

"e"-ane

Hee (t (s e!ee% to as the s*'e1&(a, 'e(nea, !as&(a 2Co,,es$ !as&(a3


4/23

ANTEROLATERAL MUSCLES

F()e "*s&,es (n anteo,atea, /o*' o! a-%o"(na, a,, "*s&,es:

Thee at "*s&,es

o F(-es -e/(n 'osteo,atea,,#5 'ass ante(o,# an% ae e',a&e% -# an

a'one*os(s as the "*s&,e &ont(n*es toa%s the "(%,(neo E(ternal bli)ue

o Internal bli)ue

o Tran!*er!u! ab%mini!

To )et(&a, "*s&,es

o Nea "(%,(ne5 h(&h ae en&,ose% (th(n a ten%ono*s sheath !o"e% -# thea'one*oses o! the at "*s&,es

o Rectu! ab%minu!

o +yrami%ali! mu!cle!

To/ethe these "*s&,es ae &(t(&a, !o "a(ntenan&e o! "an# no"a, 'h#s(o,o/(&a,

!*n&t(onso The# !o" a 1"5 -*t e.(-,e a,, that 0ee's a-%o"(na, )(s&ea (th(n the

a-%o"(na, &a)(t#o +rtect! *i!cera rm in,ury

o He,'s "a(nta(n 'ost*e o! )(s&ea (n ee&t 'ost*e a/a(nst a&t(on o! /a)(t# Conta&t(on o! these "*s&,es ass(sts (n -oth )uiet an% rce% e(piratin2e4/4

hen e.e&(s(n/ #o* nee% to a&t()e,# '*sh a( o*t -e&a*se #o* ant to -eathe (n

!aste3 -# '*sh(n/ the )(s&ea *'a% 2h(&h he,'s '*sh the e,a.e% %(a'ha/"

!*the (nto the thoa&(& &a)(t#5 an% (n cu'$in' an% *mitin'

A,, these "*s&,es ae (n)o,)e% (n an# a&t(on that (n&eases (nta;a-%o"(na,

'ess*e5 (n&,*%(n/ &h(,%-(th5 *(nat(on an% %e!e&at(on

FLAT MUSCLES

E.tena, o-,(+*e


5/23

Most s*'e1&(a, o! the < at "*s&,es (n anteo,atea, /o*' o! a-%o"(na, a,,

"*s&,es (s e(ternal bli)ue h(&h (s (""e%(ate,# %ee' to !uperfcial a!cia4

Latea,,# ',a&e% "*s&,e 1-es 'ass (n an inerme%ial%(e&t(on 2=han%s (n

'o&0ets$3

Its ,a/e a'one*ot(& &o"'onent &o)es the ante(o 'at o! a-%o"(na, a,, to

"(%,(ne A''oa&h(n/ "(%,(ne5 a'one*oses ae ent(ne%5 !o"(n/ ,(nea a,-a5 h(&h

e.ten%s !o" .('ho(% 'o&ess to '*-(& s#"'h#s(s

Loe -o%e o! e.tena, o-,(+*e a'one*os(s !o"s (n/*(na, ,(/a"ent on ea&h

s(%eo Th(s !ee e%/e o! the e.tena, o-,(+*e a'one*os(s (s th(&0ene% an%

e(n!o&e%5 an% 'asses -eteen the ante(o s*'e(o (,(a& s'(ne ,atea,,#

an% the '*-(& t*-e&,e "e%(a,,#o It !o,%s *n%e (tse,! !o"(n/ a to*/h5 h(&h has a o,e (n the !o"at(on o!

the (n/*(na, &ana,

Intena, o-,(+*e

Dee' to the e.tena, o-,(+*e "*s&,e (s the (ntena, o-,(+*e "*s&,e 27n%o! the

Lecture 6 - Anatomy of the Anterolateral Abdominal Wall and Inguinal Region

Documents

Transcript of Lecture 6 - Anatomy of the Anterolateral Abdominal Wall and Inguinal Region