Scalp Flashcards
5 layers of the scalp
- Skin
- Connective tissue (dense)
- Aponeurosis and m
- Loose connective tissue
- Pericranium
boundaries of the scalp
- anterior: supraorbital margins
- posterior: external occipital protuberance and superior nuchal line
- lateral: zygomatic arches
skin
- hair follicles, sweat and sebaceous glands
- abundant a, v, and lymph drainage
connective tissue
- thick and dense
- anchored above and below
- vascularized
- contains nerve supply
which layer of the scalp has nerve supply
dense connective tissue
which layer of the scalp has a strong tendionous sheet for attachment of 2 bellies of occipitofrontalis m
aponeurotic layer
which layer allows movement of layers within the scalp
loose connective tissue
layer above the underlying bone
pericranium
innervation of occipitofrontalis m
facial n
sensory innervation comes from what two main nerves
cranial nn and cervical nn
region anterior to ear and vertex is supplied by what CN
trigeminal n
region posterior to ear and vertex is supplied by what n
cervical nn (from spinal cord levels C2 and C3)
what branches of CN V1 supply the scalp
supratrochlear n and supraorbital n
supratrochlear n innervates what
front of foreheard near midline
supraorbital n innervates what
scalp as far back as the vertex
supratrochlear n and supraorbital n pass through what muscle
frontal belly of occipitofrontalis m
what branch of Cn V2 supplies scalp
zygomaticotemporal n
zygomaticotemporal n innervates what
scalp near temple
what branch of CNV3 supplies the scalp
auriculotemporal n
what does the auriculotemporal n supply
scalp over temporal region and anterior to ear
what cervical n branches supply the scalp
- greater auricular n (C2, C3)
- lesser occipital n (C2)
- greater occipital n (C2)
- third occipital n (C3)
anterior rami nerves that supply the scalp
- greater auricular n
- lesser occipital n
posterior rami nerves
- greater occipital n
- third occipital n
greater auricular n supplies
small area posterior to ear
lesser occipital n supplies
area posterior and superior to the ear
greater occipital n supplies
large area of posterior scalp superiorly to vertex
third occipital n supplies
small area of lower medial portion of scalp
what branches of ICA supply the scalp
branch of the ophthalmic a which include supraorbital a and supratrochlear a
ophthalmic branches of ICA (supratrochlear and supraorbital) supply what
anterior and superior aspects of scalp as far as vertex
what branches of ECA supply the scalp
- superficial temporal a
- posterior auricular a
- occipital a
superficial temporal a supplies
lateral aspect of scalp
posterior auricular a supplies
- area posterior to ears
- parotid gland
occipital a supplies
posterior aspect of scalp
