Anatomy Week 1 Wet Flashcards
most common joint between bones of the skull
suture joint
what is the neurocranium
big dome of the head
what is the viscerocranium
facial part of the skull
3 layers of skull bone
cortical bone sandwiches spongy bone (dilpoe) in the middle
where is the red marrow in skull bone
in the diploe
sagittal suture
left and right parietal
coronal suture
frontal and parietal
lambdoid suture
parietal and occipital
which bones form the zygomatic arch
temporal and zygomatic
what suprahyoid muscle attaches to the styloid process
stylohyoid
what bone does the styloid process belong to
temporal
where are the pterygoid plates
on the sphenoid bone. seen on the inferior surface, like wings off to the sides
what structure is at the anterior of each plate
and pterygoid hamulus
where is the palatine bone
just posterior to the maxilla within the oral cavity
3 divisions of fossa of the floor of the skull
anterior cranial
middle cranial
posterior cranial
biggest foramen of the skull base
foramen magnum
what passes through the foramen magnum
medulla and meninges, right and left vertebral arteries, CN XI
what nerves branches pass through the foramen ovale and spinosum
CN V3 (mandibular)
the jugular foramen carries which nerves
CN IX, X, XI
cranial nerves I –> VI
I - olfactory II - optic III - oculomotor IV - trochlear V - trigeminal VI - abducent
cranial nerves VII –> XII
VII - facial VIII - vestibulocochlear IX - glossopharyngeal X - vagus XI - spinal accessory XII - hypoglossal
cranial nerve VI
abducent –> superior orbital fissure
motor
turns the eye laterally
what are the four groups of sinuses
ethmoid, frontal, sphenoid and maxillary
what are the auditory ossicles
three bones which connect along the tympanic cavity to the tympanic membrane: malleus, incus, stapes
what foramen is on the petrous part of the temporal bone
the internal acoustic meatus
5 layers of scalp
Skin Connective tissue (dense) Aponeurosis (epicranial aponeurosis) Loose Connective Tissue Pericranium
on which bone do you find the nuchal lines
occipital bone
what two muscles are connected by the epicranial aponeurosis
frontal and occipital belly of the occipitofrontalis muscle
innervation of anterior part of scalp
all 3 branches of trigeminal V
innervation of posterior part of scalp
anterior and posterior rami of spinal nerves C2 and C3
the brachial plexus forms from the ventral rami of what spinal nerves
C5-T1
what is occipital neuralgia
severe pain in the back of the head
what is a rhizotomy
intradural severing of the nerve roots in the spinal cord
most vascularised layer of scalp
dense connective tissue
supratrochlear and supraorbital artery are branches of what neck artery
internal carotid
branching from carotid to angular artery
carotid –> external carotid –> facial –> angular
3 scalp arteries with supply from the external carotid
superficial temporal artery
posterior auricular artery
occipital artery
what artery branches to the superficial temporal artery
external carotid
vein than goes up the forehead
supraorbital
smaller vein alongside supraorbital
supratrochlear
what vein does the facial vein drain into
internal jugular and a bit external
what vein do the supra-orbital and supratrochlear drain into
facial vein
what veins unite to form the external jugular
posterior auricilar, retromandicular and facial branch
relation of external jugular to the scm
superficial
in which direction does the buccinator run
posterior –> anterior
what direction does the masseter run
superior –> inferior (wee bit anterior leaning)
what nerve innervates the muscles of facial expression
facial nerve VII
three branches trigeminal nerve
opthalmic
maxillary
mandibular
5 branches of facial nerve
Temporal Zygomatic Buccal Mandibular Cervical
nerve, artery and vein embedded within the parotid gland
facial nerve and its branches
external carotid artery
retromandibular vein
parasympathetic supply of parotid gland
glossopharyngeal IX
sympathetic supply of parotid gland
external carotid nerve plexus
superficial temporal artery is a branch off the
external carotid
facial artery is a branch off the
external carotid
supratrochlear artery is a branch off the
internal carotid
posterior auricular artery is a branch off the
internal carotid
what artery wraps around the mandible to reach the face
facial artery
what muscle does the facial artery lie over as it goes to the face
masseter
submandibular gland is ‘grooved’ by what artery
facial artery
terminal branch of facial artery
angular artery
