Embryology Flashcards
Occurs in the period of the ovum
A. From zygote to morula
B. From morula to bilaminar disc
C. From zygote to bilaminar disc
D. From morula to trilaminar disc
A. From zygote to morula
Term for the inner cells in a blastocyst
A. Blastocoele
B. Embryoblast
C. Embryocyst
D. Trophoblast
B. Embryoblast
Becomes the primitive endoderm
A. Trophoblast
B. Embryoblast
C. Epiblast
D. Hypoblast
D. Hypoblast
Bilaminar disk is converted into a trilaminar disk
A. Trilamination
B. Neurulation
C. Gastrulation
D. Caudulacion
C. Gastrulation
Provides embryonic connective tissue needed for craniofacial development (face, neck and oral tissues)
A. Somites
B. Neuroectoderm
C. Neural crest cells
D. Pharyngeal arches
C. Neural crest cells
What makes up the first branchial arch?
A. Maxillary process
B. Mandibular process
C. Maxilla/mandible/malleus/incus
D. Maxillary and mandibular processes
D. Max and mandi processes
Development of the face
A. 2-4 weeks
B. 4-8 weeks
C. 9 weeks
D. 11-12 weeks
B. 4-8 weeks
_________ separates stomodeum from GI tract
A. Oropharyngeal cleft
B. Oropharyngeal groove
C. Buccopharyngeal cleft
D. Buccopharyngeal membrane
D. Buccopharyngeal membrane
This marks the union of the primary and secondary palate during the formation of the palate
A. Incisive foramen
B. Incisive papilla
C. Median palatal suture
D. Horizontal shelf
A. Incisive foramen
Fusion of the palatal shelves happens at what week?
9th week
Body of the tongue?
A. Anterior 2/3
B. Anterior 1/3
C. Posterior 2/3
D. Posterior 1/3
A. Anterior 2/3
Branchial arch for the anterior 2/3 of the tongue? Cranial nerve?
1st arch and CN VII
Branchial arch for Post 1/3 of tongue and CN in-charge
2nd and 3rd BA, CN IX
Development of the mandible is through what process?
A. Endochondral ossification
B. Intramembranous ossification
C. Both
C. Both
