Orofacial Anatomy II – final Exam Review with
Practice Questions + Dental Decks Part I Q&A
(2025/2026
what happens after the egg is fertilized?
it attaches to the uterine wall
is formed by the fusion of the mandibular processes at about the 7th week
Mandibular Symphysis
when the rapid cell development begins a ______ embryonic disc is formed?
bilaminar
a bilaminar embryonic disk forms and becomes a ______ embryonic disc?
trilaminar
the process of a bilaminar becoming a triaminar embryonic disc is called?
gastrulation
what are the 3 cell layers?
ectoderm, mesoderm, endoderm
,from the 3 cell layers what will develop?
organ systems and body tissues
Embryonic stage lasts from...
3-8 weeks
ectoderm forms...
nervous sytem, tooth enamel, nails, hair, sensorys, sinuses
mesoderm forms...
muscles, bone cartilage, blood, dentin, pulp, cementum, pdl
endoderm forms...
STOMODEUM, GI tract epithelium and associated glands, liver, pancreatic, etc
the embryo is a flat disk at week?
4
What does cephalic stand for?
head end
the brain develops on the _____ end?
cephalic
an oropharyngeal membrane forms which becomes the...
primitive mouth
Frontal process develops...
the forehead
develop from the cephalic portion of the embryo and gives rise to many different
organs?
pharyngeal arches
, what does the pharyngeal arches form?
cartilage, bone, nerves, muscles, glands, and connective tissues of face and neck
Embryologic structures that develop into anatomic structures in the adult human are
called?
branchial arches
at ___ weeks the _________ ______ appear below the stomodeum?
5 weeks, pharyngeal arches
what contribute to the formation of the face, jaws, and neck?
mesodermal bars (pharyngeal arches)
Branchial Arch I will form:
maxilla, mandible, muscle of mastication, nerves/blood supply, Cranial Nerve V
what is cranial nerve V?
trigeminal
Branchial Arch II will form?
hyoid bone, muscle of facial expression, nerves and blood supply, Cranial Nerve VII
what is Cranial Nerve VII?
facial
Branchial Arch III, IV, V will form...
the neck except V which degenerates
Facial Development begins...
3 - 4 weeks
there is a ________ ___ at the ends of Branchial Arch I?
budding off
Practice Questions + Dental Decks Part I Q&A
(2025/2026
what happens after the egg is fertilized?
it attaches to the uterine wall
is formed by the fusion of the mandibular processes at about the 7th week
Mandibular Symphysis
when the rapid cell development begins a ______ embryonic disc is formed?
bilaminar
a bilaminar embryonic disk forms and becomes a ______ embryonic disc?
trilaminar
the process of a bilaminar becoming a triaminar embryonic disc is called?
gastrulation
what are the 3 cell layers?
ectoderm, mesoderm, endoderm
,from the 3 cell layers what will develop?
organ systems and body tissues
Embryonic stage lasts from...
3-8 weeks
ectoderm forms...
nervous sytem, tooth enamel, nails, hair, sensorys, sinuses
mesoderm forms...
muscles, bone cartilage, blood, dentin, pulp, cementum, pdl
endoderm forms...
STOMODEUM, GI tract epithelium and associated glands, liver, pancreatic, etc
the embryo is a flat disk at week?
4
What does cephalic stand for?
head end
the brain develops on the _____ end?
cephalic
an oropharyngeal membrane forms which becomes the...
primitive mouth
Frontal process develops...
the forehead
develop from the cephalic portion of the embryo and gives rise to many different
organs?
pharyngeal arches
, what does the pharyngeal arches form?
cartilage, bone, nerves, muscles, glands, and connective tissues of face and neck
Embryologic structures that develop into anatomic structures in the adult human are
called?
branchial arches
at ___ weeks the _________ ______ appear below the stomodeum?
5 weeks, pharyngeal arches
what contribute to the formation of the face, jaws, and neck?
mesodermal bars (pharyngeal arches)
Branchial Arch I will form:
maxilla, mandible, muscle of mastication, nerves/blood supply, Cranial Nerve V
what is cranial nerve V?
trigeminal
Branchial Arch II will form?
hyoid bone, muscle of facial expression, nerves and blood supply, Cranial Nerve VII
what is Cranial Nerve VII?
facial
Branchial Arch III, IV, V will form...
the neck except V which degenerates
Facial Development begins...
3 - 4 weeks
there is a ________ ___ at the ends of Branchial Arch I?
budding off
