Quiz 2 Flashcards
primordia associated w/ surface ectoderm
special sense placodes
CN associated with surface ectoderm
1, 2, 8
primordia associated w/ neuroectoderm
ectomesenchyme
CN associated with neuroectoderm
5
CN associated with surface mesoderm
3,4,5(3), 6, 7, 9, 10, 11, 12
CN1 is which nerve and is associated with which placode?
olfactory/ nasal
CN2 is which nerve and is associated with which placode?
optic/ lens
CN8 is which nerve and is associated with which placode?
vestibulocochlear / otic
ectomesenchyme is derived from
neural crest cells
the anterior portion of the face is innervated by what?
CN5 trigeminal nerve
Calvaria forms by which kind of ossification and from which bones
intramembranous
frontal/ectomesenchyme or paraxial (parietal and occipital bones)
pharyngeal arches are formed by what 3 germ layers
ectoderm, lateral plate mesoderm, inner layer of endoderm
each pharyngeal arch contains what 4 structures
cartilage
muscle
cranial nerve
aortic arch from lateral plate mesoderm
cartialge from 1-3 arches develop from __ __
cartilage from 4-6 develop from
ectomesenchyme
lateral plate meso
somitomeres in 1st arch give rise to which muscles
mastication
somitomeres in 2nd arch give rise to which muscles
facial expression
somitomeres in 3rd arch give rise to which muscles
stylopharyngeus
somitomeres in 4-6 arch give rise to which muscles
laryngeal
pretrematic branches
CNV1- ophthalmic division of trigeminal
CNVII- Chorda Typani– taste fibers for 2/3 of tongue
CNXI -Typanic Branch of glossopharyngeal nerve provides sensory innervation to the middle ear and auditory tube
CNX- Internal laryngeal branch of vagus nerve –sensory innervation to the vocal cords
pretrematic CNV1 is what
ophthalmic division of trigeminal
pretrematic CNVII is what
Chorda Typani– taste fibers for 2/3 of tongue
pretrematic CNXI is what
Typanic Branch of glossopharyngeal nerve provides sensory innervation to the middle ear and auditory tube
pretrematicCNX is what
Internal laryngeal branch of vagus nerve –sensory innervation to the vocal cords
1st arch forms what
small part of maxillary artery, but mostly disappears
2nd arch forms what
mostly disappears
3rd arch forms what
common carotid, proximal internal carotid
4th arch forms what
aortic arch, right subclavian
6th arch forms what
pulmonary arteries, ductus arteriosus
cranial nerve of fist arch
5
carnial nerve of 2nd arch
7
cranial nerve of 3rd arch
9
cranial nerve of 4-6 arch
10
cartilage derivatives of 1st arch
mandible inus, malleus, greater wing of sphenoid, pterygoid plates, phenomadibular ligament,
cartilage derivatives of 2nd arch
stapes, styloid process, tylohyoid ligament, lesser horn and upper body of hyoid bone
cartilage derivatives of 3rd arch
greater horn and lower body of hyoid
cartilage derivatives of 4-6 arch
thyroid cartilage
cricoid cart
arytenoid cart
name for future mouth
stomodeum
basicranium forms by which kind of ossification
endocondral
viscerocranium forms by which kind of ossification and from which arches
Intramembranous
1,2,3
3 superficial neck muscles
Platysma, Trapezius, Sternocleidomatoid
3 cervical fascias
investing, Visceral, Prevertebral
Cartoid sheath contains waht 4 structures?
Carotid Artery
internal Jugular vein
Vagus nerve
deep cervical lymph node
4 Infrahyoid muscles
Omohyoid
sternohyoid
sternothyroid
thyrohoid
4 supra hyoid
Ant. digastric
Posterior digastric
stylohyoid
mylohyoid
3/4 infrahyoid muscles are innervated by _______. Which muscle is not
ansa cervicalis
thyrohoid
borders of anterior triangle
mandible, midline, SCM
borders of submental triangle
anterior digastric
what does the submental triangle contain
submental lymp nodes
borders of submandibular triangle
anterior and posterior digastric
Submandibular/digastric triangle contains what 5 tings
submandibular/ parotid gland/duct fascial vessels hypglossa CN 12 branch from V3 lymp nodes
borders of carotid body
Common carotid+ bifurcation internal jugular vagus deep cervical carotid body/sinus hypoglossal CN 12 cervical plexus ansa cervicalis
Which, CCA right/left comes off of aortic arch
left
External carotid Branches
Superior Thyroid Anterior pharyngeal lingual Facial occipital Posterior Auricular Superficial Temporal Maxillary
borders of muscular triangle
hyoid bone
superior belly of omohyoid
anterior SCM
midline
borders of posterior triangle
Anterior- posterior border of sC Posterior-trapezius Inferior- Mid Clavicle Roof- Cervical FAscia Floor- prevertebral fascia
boundary of root of neck
manubrium 1st rib, t1
Branches of subclavian
vertebral internal thoracic thyrocervical trunk costocervical dorsal cervical
branches of thyrocervical trunk
inferior thyroid
suprascapular
transverse cervical
thoracic duct is on left/right
left
hyoid bone is derived from which arch
2nd (lesser) and 3rd (greater)
parathyroid glands are dervied fromwhich PA
superior- 4th
inferior 3rd
usually IJV caths are placed on which side
right
which muscle surround eye
orbicularis oculi
which muscle surrounds mouth
orbicularis oris
which is the smile muscle
zygomaticus major
which helps w/ chewing
buccinator
5 branches of V1
supraorbital supratemporta lacrimal infratrochlear external nasal
3 branches of v2
infraorbital
zygomaticofacial
zygomaticotemportal
3 branches of V3
mental
buccal
auriculotemporal
3 branches of facial artery
sup labial
inf labial
angular
branches of facial nerve
temporal zygomatic buccal mandibular cervical two zebras bit my cervix
posterior scalp is innervated by what
cervical spinal nerves 2/3
Which fontanelle closes first
posterior
