Embryology Flashcards
Neck develops from
Branchial/Pharyngeal Arches
Face develops from
5 Mesenchymal Processes
Notochord formation leads to
Axis formation
Somites are derived from
Paraxial Mesoderm and Form Axial Skeleton and Muscles
In humans how many embryos develop
33
Which branchial arch disappears
5th
which nerve comes from 1st arch of branchial arch
mandibular of trigeminal
which nerve comes from 2nd arch of branchial arch
facial
which nerve comes from 3rd arch of branchial arch
glossopharyngeal
which nerve comes from 4th arch of branchial arch
sup of vagus
which nerve comes from 6th arch of branchial arch
laryngeal of vagus
Anterior belly of diagrastic innervation
Mandibular of Trigeminal
Posterior belly of diagnostic innervation
Facial nerve
Other 4 structures which develop form branchial arch
Tongue
Thyroid Gland
Parathyroid
Part of Pituitary
Face develops form how many processes
5
The medial nasal process grows down and laterally to form
Philtrum
When does anterior fontanelle close
1.,5 years
Neural tube forms
brain
1st pharyngeal arch abnormality
Treacher Collins Syndrome
At what vertebral level does the larynx continue as the trachea?
c6
Which of the following is an unpaired bone that forms part of the skeleton of the nose?
Ethmoid
The perpendicular plate of the ethmoid forms part of the:
nasal septum
To which group of lymph nodes would the malignant melanoma usually spread to initially?
buccal
when does anterior fontanelle close
9-18 months
