Aspect of the face

Question 1

Layers of the scalp

Answer 1

Skin
Connective tissue 
Aponeurosis 
Loose areolar 
Pericranium

Question 2

Function of skin layer

Answer 2

Thin, contains sweat and sebaceous gland - appendages need energy, good blood supply

Question 3

Function of connective tissue

Answer 3

Thick, vascular. Blood vessels are travelling through this to get to the skin

Question 4

Function of aponeurosis

Answer 4

Broad strong tendinous band, attachment for muscles on forehead. The frontalis attaches at the front, occipitalis attaches at the back. Occipitofrontalis is attached by the aponeurosis

Question 5

Function of loose areolar

Answer 5

Allows movement on the underlying cranium, contains emissary veins

Question 6

Function of pericranium

Answer 6

Attached to the bone

Question 7

Where does the main blood supply of the scalp come from

Answer 7

Connective tissue layer

Question 8

Why do scalp lacerations bleed so much

Answer 8

The fibrous band is under so much tension - the frontalis is contracting at the front, the occipitalis is contracting at the back therefore the wound will gape

Question 9

What is the danger area in the scalp

Answer 9

Loose areolar/ connective tissue

Question 10

Why is it the danger area

Answer 10

The layer is loose and there are gaps therefore pus etc can travel intra cranially. The emissary veins connect extra cranial veins of the scalp to the intra cranial venous sinuses. Can lead to meningitis

Question 11

Layers of the face

Answer 11

Skin
Subcutaneous fat
SMAS
Deep fascia

Facial nerve runs between the smas and deep fascia

Question 12

Function of the SMAS layer

Answer 12

Gives fluidity to the muscles of facial expression and makes the movements seem more fluid