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Anatomy of the Suprarenal Glands: Structure, Location, and Function, Lecture notes of Neuroanatomy

An in-depth exploration of the anatomy of the suprarenal glands, including their introduction, location, shape and measurements, external features, arterial supply, venous drainage, lymphatics, and nerve supply. The document also discusses the distinct yet topographically similar cortex and medulla, and the hormones they secrete.

Typology: Lecture notes

2019/2020

Uploaded on 07/17/2020

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Suprarenal
Glands
Introduction
:
°
Also
called
Adrenal
glands
.
°
Important
pairs
of
endocrine
glands
situated
on
upper
poles
of
kidney
and
enclosed
in
same
fascial
sheath
as
that
g
kidney
.
°
Two
parts
:
ca
>
Outer
Cortese
(
develops
from
mesoderm
)
(b)
Central
Medulla
(
develops
from
Neural
crest
)
°
Cortese
secretes
a
number
g
steroid
hormones
which
in
responsible
for
:
(a)
Controlling
electrolyte
and
water
balance
.
cb
,
Maintain
g
blood
sugar
comet
.
cc
,
Maintaining
liver
and
glycogen
stores
.
-
d
'
controlling
inflammatory
rkns
.
°
Medulla
in
composed
of
large
granular
chroma
f
fin
cells
which
secrete
catecholamines
.
Ontogenetically
.
phylogenetically
,
structurally
and
functionally
.
the
cortex
and
medulla
are
distinct
.
But
topographically
they
are
similar
.
Location
:
in
The
suprarenal
glands
are
located
in
epigastric
region
of
abdomen
121
Antero
superior
to
upper
part
g
each
kidney
.
c
"
Right
suprarenal
in
ur
edge
shaped
between
the
diaphragm
post
.eu?aeglyi
.
the
inferior
vena
cava
antero
medially
.
the
right
lobe
g
liver
-
Anteriorly
.
kidney
-
in
few
laterally
ban
area
g
liver
-
superiorly
.
pf3
pf4

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Suprarenal Glands

Introduction :

° Also called Adrenal

glands . ° Important (^) pairs (^) of endocrine^ glands

situated on

upper poles^ of kidney and (^) enclosed (^) in (^) same fascial sheath^ as^ that (^) g

kidney

. ° (^) Two parts

: ca > Outer Cortese (

develops (^) from

mesoderm )

(b) Central (^) Medulla ( (^) develops

from

Neural (^) crest (^) )

° Cortese secretes

a number^ g steroid^ hormones^ which^ in^

responsible for^ : (a) Controlling electrolyte^ and water balance.

cb, Maintain
g

blood sugar comet. cc , (^) Maintaining liver^ and^

glycogen

stores.

  • d^ ' controlling (^) inflammatory rkns. ° (^) Medulla in

composed of large granular

chroma f fin cells which

secrete catecholamines .
  • Ontogenetically. phylogenetically , structurally and functionally.

the cortex^ and medulla

are distinct^.

But

topographically they are^ similar.

Location : in The^ suprarenal (^) glands

are located^ in^

epigastric (^) region (^) of

abdomen

121 Antero^

superior

to upper part^ g^ each

kidney

. c " Right (^) suprarenal in (^) ur edge shaped^

between the

diaphragm post .eu?aeglyi. the

inferior vena^ cava antero

medially . the

right

lobe g liver^

  • Anteriorly . kidney -^ in^ few laterally ban (^) area g liver (^) - superiorly.

( (^4) , (^) left suprarenal gland lies between^ the^ diaphragm post

  • ero

medially.

the stomach -

Anteriorly

kidney - inferiorly. Shape & Measurements :

  • Each gland in flattened antero posteriorly ° Right gland in

triangular

or pyramidal in shape (^) bearing a^ resemblance to " top

hat

" .

  • left =^
Crescentic / Semilunar
  • length - - (^) 50mm

At birth (^). gland in

Yzrdg Kidney.

Breadth = 30mm In adults^ , it in (^) Yzoth (^) g size^ g kidney.

Thickness =^

10mm

Height

= 5g .

External

features : ,

Ant e^ Post

in (^) Right

suprarenal gland^

  • It has base .
apex.

two surfaces and

two borders.

(2) left (^) suprarenal gland

  • t
Medial & lateral

Two ends^ ( Upper -^ Marrow^ &^ lower^ -^ Rounded^ )

Two borders^ ( Medial^ &^ lateral^ )

Two surfaces (^ Anterior^

& Posterior)

Applied : ② (^) Meditates ( med^ notes^.^ in^ )