205

Front 1

THE NECK: SUPERFICIAL FASCIA

-anteriorly...

Back 1

I. Superficial Fascia

A. Anteriorly, the superficial fascia contains a thin, sheetlike muscle, the
platysma

Front 2

CUTANEOUS NERVES

-emerge into the sup. fascia....

Back 2

B. Cutaneous nerves

1. Emerge into the superficial fascia midway along the posterior border of
the sternocleidomastoid; derived from the cervical plexus, which is
formed from ventral rami of spinal nerves Cl to C4

Front 3

CUTANEOUS NERVES

LESSER OCCIPITAL NERVE ()

Back 3

B. Cutaneous nerves

2. Lesser occipital nerve (C2): ascends along the posterior border of the
sternocleidomastoid and supplies the skin and scalp posterior to the
auricle

Front 4

CUTANEOUS NERVES

GREATER AURICULAR NERVE

Back 4

B. Cutaneous nerves

3. Great auricular nerve (C2, 3): ascends on the sternocleidomastoid to-
ward the auricle and supplies the auricle and skin overlying parotid ;
gland

Front 5

CUTANEOUS NERVES

TRANSVERSE CERVICAL NERVE

Back 5

B. Cutaneous nerves

4. Transverse cervical nerve (C2, 3): courses anteriorly across the sterno-
cleidomastoid and supplies the skin ofthe anterior neck

Front 6

CUTANEOUS NERVES

SUPRACLAVICULAR NERVES

-May arise as a...
-divides into?
-descend?

Back 6

B. Cutaneous nerves

5. Supraclavicular nerves (C3, 4)

a. May arise as a single nerve, which then divides into the medial, inter-
mediate, and lateral supraclavicular nerves; they descend deep to the
platysma

Front 7

CUTANEOUS NERVES

SUPRACLAVICULAR NERVES

-the medial supraclavicular nerve...

Back 7

B. Cutaneous nerves

5. Supraclavicular nerves (C3, 4)

b. The medial supraclavicular nerve supplies the skin near the sterno-clavicular joint, the intermediate supraclavicular nerve supplies the skin along the shaft ofthe clavicle, and the lateral supraclavicular
nerve supplies the skin ofthe shoulder