The Facial Skeleton & Scalp

Question 1

Bones of the facial skeleton

Answer 1

6 paired bones:

1. Lacrimal
2. Nasal
3. Palatine
4. Inferior nasal concha
5. Zygomatic
6. Maxilla

2 unpaired bones:

1. Vomus
2. Mandible

Question 2

Layers of the scalp (S→D)

Answer 2

• Skin
• Connective tissue
• Aponeurosis
• Loose connective tissue (subaponeurotic fascia)
• Periosteum

Question 3

Describe the connective tissue of the scalp

Answer 3

• Fibrous, tightly bound to skin & aponeurosis
  
  • Sliding of the scalp is due to the loose connective tissue
• Holds vessels open when cut → scalp wounds bleed profusely & require suturing

Question 4

Discuss scalp wounds

Answer 4

• Bleed profusely, require suturing
• If penetrates the aponeurosis:
  
  • Infection spread over surface of cranial vault in subaponeurotic space
  • Transverse tears will gape (frontalis & occipitalis) so harder to suture

Question 5

Arteries & nerves of the scalp - diagram

Answer 5