deep

cervical

·

superficial

cervical

fascia

is

also

called

cervical

subcutaneous

tissue

.

It

is

a

layer

of

fatty

connective

tissue

in

between

the

investing

layer

of

deep

cervical

fascia

and

dermis

of

the

skin

.

It

contains

blood

vessels

,

lymphatic

vessels

,

lymph

nodes

.

Anterolaterally

it

has

the

platysma

.

·

Deep

cervical

fascia

:

also

called

fascia

colli

,

it

has

the

following

layers

:

a

.

Investing

layer

:

·

it

lies

deep

into

the

platysma

,

and

surrounds

the

neck

like

a

collar

.

It

forms

roof

of

anterior

and

posterior

triangle

.

·

Superiorly

(horizontal

extent)

:

1)

External

occipital

protuberence

2)

Nuchal

lines

3)

Mastoid

process

,

styloid

process

4)

External

acoustic

meatus

,

tympanic

plate

5)

Base

of

mandible

·

Between

the

mastoid

process

and

base

of

the

mandible

,

the

fascia

splits

to

enclose

the

parotid

gland

.

·

superficial

lamina

is

thick

and

dense

and

attaches

to

the

zygomatic

arch

.

-PaROTID

fascia

·

Deep

Lamina

is

thin

and

attaches

to

styloid

process

,

tympanic

plate

and

base

of

mandible

·

Between

styloid

process

and

angle

of

mandible

the

fascia

thickens

to

form

stylomandibular

ligame

-

it

which

separates

the

parotid

gland

from

the

submandibular

gland

.

·

At

the

base

of

the

mandible

it

encloses

the

submandibular

gland

.

·

inferiorly

(vertical

extent)

:

1)

spine

of

scapula

2)

Acromion

process

3)

clavicle

4)

manubrium

·

the

fascia

splits

to

enclose

suprasternal

and

supraclavicular

spaces

·

Posteriorly

:

1)

ligamentum

nuchae

2)

Spine

of

7th

cervical

vertebra

·

anteriorly

:

1)

Hyoid

bone

2)

symphysis

menti