Scalp

Question 1

Arterial supply of scalp

Answer 1

Front of auricle:

• supratrochlear – ICA
• supraorbital – ICA
• superficial temporal – ECA

Behind auricle:

• posterior auricular – ECA
• occipital – ECA

Question 2

Venous drainage of scalp

Answer 2

Supratrochlear + supraorbital –> angular which continues as facial

Superficial temporal + maxillary –> retromandibular –> anterior + posterior

Facial + anterior –> common facial –> internal jugular

Posterior auricular + posterior –> external jugular –> subclavian

Question 3

Lymphatic drainage of scalp

Answer 3

• Anterior part into auricular or parotid ln

- Posterior part into posterior auricular/mastoid and occipital ln

Question 4

Nerve supply of scalp in front of ear

Answer 4

Sensory

1. supratrochlear - branch o/ opthalmic division o/ trigeminal
2. Supraorbital - branch o/ opthalmic division o/ trigeminal
3. Zygomaticotemporal - branch o/ maxillary division o/ trigeminal
4. Auriculotemporal - branch o/ mandibular division o/ trigeminal

Motor
1. Temporal branch o/ facial

Question 5

Nerve supply of scalp behind auricle

Answer 5

Sensory

1. Posterior division of great auricular
2. Lesser occipital
3. Greater occipital
4. Third occipital

Motor
1. Posterior auricular branch of facial

Question 6

Branches of facial nerve

Answer 6

Temporalis
Zygomatic
Buccal
Marginal mandibular
Cervical