ANATOMY OF THE SCALP

THE SCALP
The scalp is the collection of several tissues that covers calvaria of the skull
COMPOSITION
S - Skin
C - Connective tissue
A - Aponeurosis (Galea aponeurotica) and muscle (Occipitofrontalis)
L - Loose areolar connective tissue (dangerous area of scalp)
P - Pericranium
INNERVATION (10)
✓ 5 Anterior nerves
✓ 5 Posterior nerves
ANTERIOR NERVES
✓Supraorbital nerve
✓Supratrochlear nerve
✓Zygomaticotemporal nerve
✓Auriculotemporal nerve
✓Temporal branch of facial nerve
POSTERIOR NERVES
✓Great auricular nerve
✓Lesser occipital nerve
✓Greater occipital nerve
✓3rd occipital nerve
✓Auricular branch of facial nerve
ARTERIAL SUPPLY
✓Anterior arterial supply
✓Posterior arterial supply
ANTERIOR ARTERIAL SUPPLY
✓Supraorbital artery (internal carotid)
✓Supratrochlear artery (internal carotid)
✓Superficial Temporal nerve (external carotid)
POSTERIOR ARTERIAL SUPPLY
✓Posterior auricular artery (external carotid)
✓Ocvipital artery (external carotid)
LYMPHATIC DRAINAGE
✓Preauricular lymph node
✓Post auricular lymph node
✓Occipital lymph node
CLINICAL ADVANTAGE
✓It acts as a safety valve for hematoma
APPLIED ASPECT
✓ Dangerous area of scalp
✓Black eye
✓Cephalhematoma
✓Cephalhydrocele
✓Caput succedaneum