Anatomy Of The Scalp And Face Flashcards
The _____ is the soft tissue layer of the skull
scalp
The Scalp extends from the ________ to the ________
Suprior Nuchal Line, Superior Orbital Ridge
The Extent of the scalp covers the vault of the skull & extends to the right & left ___________, the eye brows and the ___________.
- temporal lines,
2. superior nuchal lines
The layers of the Scalp:
S –skin; C- connective tissue; (dense) A- aponeurosis L- loose connective tissue; P- pericranium.
the skin of the scalp is the thickest in the body and especially at the ________ region
occipital region
The skin of the scalp bears the hair follicles (hairiest), richly supplied by __________
NB: It is the commonest site of sebaceous cysts in the body.
sebaceous glands
The Connective tissue layer (dense) of the scalp consists of ____1_____ bound in tough fibrous septa + ____2___ of the scalp lie in this layer
- lobules of fat
blood vessels
______ has the richest cutaneous blood supply of the body
The Connective tissue layer (dense)
The Connective tissue layer (dense) has the richest cutaneous blood supply of the body hence there is profuse ____1_____ from a ____2_____or operation site.
(1) haemorrhage
(2) scalp laceration
Vein of the scalp connect with the intracranial venous sinuses via numerous ___________ which pierce the skull & link the 2 venous sinuses with the _________ btw the skull vault
- emissary veins
2. diploic veins
Vein of the scalp connect with the intracranial venous sinuses via numerous emissary veins which pierce the skull & link the 2 venous sinuses with the diploic veins btw the skull vault
thus
.»> superficial infection of the scalp may spread via this system resulting in an ____1____ , ____2____ & _____3_____
- Osteitis of skull
- Meningitis
- Venous sinus thrombosis
__________ is a fibromuscular layer of the Occipitofrontalis
APONEUROSIS
The Aponeurosis is ____1___ over the dome of the skull but ___2___ in the occipital & frontal regions
- fibrous
2. muscular
The Aponeurosis of the Occipitofrontalis muscle
- Arise : _____________
- Insert: _____________
- from the superior nuchal line of the occipital bone
2. Into the zygomatic arch & anteriorly into the subcutaneous tissues of the eyebrows & nose.
The Aponeurosis of the Occipitofrontalis muscle
arises from the _______1____ of the occipital bone & insert into the ____2____ & anteriorly into the subcutaneous tissues of the eyebrows & nose.
- superior nuchal line
2. zygomatic arch
____________ lies beneath the aponeurosis & accounts for the mobility of the scalp on the underlying bone.
The loose connective tissue layer
Blood or pus collecting in this loose tissue track freely under the scalp but cannot pass into either the occipital or subtemporal regions because of the attachments of the ____________.
occipitofrontalis muscle
________________ adheres to the suture lines of the skull
The Periosteum or Pericranium layer
___________ does not cross sutural line unlike caput succedaneum.
Cephalhaematoma