Scalp and face Flashcards
where does the scalp extend from and to
superior nuchal line on posterior aspect
extends to supraorbital margins
what are the 5 layers of the scalp
S = SKIN C = CONNECTVE TISSUE A = APONEUROSIS L = LOOSE CONNECTIVE TISSUE P = PERICRANIUM
what two muscles are connected by the epicraniaal aponeurosis
occipitalis and frontalis muscle
together are the occipitofrontalis
what part of the scalp allows for free movement
loose connective (areolar) tissue
what attach the connective tissues to the pericranium
Sharpeys fibres
what nerve supplies the occipitofrontalis muscle
facial nerve VII
what nerves supply the scalp and face
- supraorbital - from V1
- supratrochlear - from V1
- zygomaticotemporal - from V2
- auriculotemporal - from V3
- lesser occipital - from cervical plexus
- greater occipital - from post primary rami
**V1,2,3
what arteries supply the scalp
OPTHALAMIC
- supraorital and supratrochlear
EXTERNAL CAROTID
- superficial temporal, post.auricular, occipital
what veins drain the scalp
FACIAL VEIN
- supraorbital and supratrochlear
sup.temporal, post.auricular, occipital
what may the scalp bleed profusely with small lacerations
very rich blood supply
how can infection be transmitted from the scalp to the cranial cavity
emissary veins do not have valves and open in the loose areolar tissue
what arteries supply the face
- Facial artery
- Superficial temporal artery
- Transverse facial artery
- Supratrochlear
- Supraorbital
what veins drain the face
- Facial
- Superficial temporal
- Retromandibular
- Supratrochlear
- Supraorbital
what are the infraorbital veins
supra-orbital superior ophthalmic angular inferior ophthalmic pterygoid plexus of veins
- drain to cavernous sinus
what nerve supplies all facial muscles
branches of the facial nerve (CNVII)
what is the sphincter muscle of the mouth
orbicularus oris
what muscles elevate the upper lip
– Zygomaticus minor
– Levator labii superioris
– Nasalis
– Zygomaticus major
what muscles depress the lips
- Depressor labii inferioris - Platysma - Depressor anguli oris - Mentalis
what muscles retract the angles of the mouth
- Zygomaticus major - Depressor anguli oris - Risorius - Platysma
what muscles are attached to the nose
- Nasalis
- Levator labii,
superioris alaeque
nasi - Levator labii
superioris - Zygomaticus minor
- Procerus
what muscles are around the eye
orbicularis oculi
- made up of the orbital and palpebral muscles
