DH 1350 Quiz 2 chap 4 formation of face and neck

The face and its associated tissue begin to form during which week of prenatal development

previous to the fourth week of prenatal devemlopment the stomodeum is sealed off from the foregut by the

the oropharyngeal membrane is composed of

the five main tissue swellings prominences or processes that join/fuse together to form the human face include all EXCEPT:

the frontal nasal processes
 the paired lateral nasal processes
the paired maxillary processes
the paired mandibular processes

in the embryonic development of the face and oral cavity, the first branchial arch or mandibular arch give rise to the

which of the following facial structures is formed from the mandibular arch

forehead
lower face
philtrum
nose
 second branchial arch

the frontonasal process of the early embryo give rise to all of these EXCEPT

upper face
maxillary incisors
maxillary canines
bridge of nose

the frontonasal processes is a swelling that appears over the developing brain in the embryo and forms the

forehead
otic palcodes
mandibular arch
neck area
branchial arches

the philtrum of the upper lip forms from the

mandibular processes
medial nasal processes
lateral nasal processes
nasal placodes
maxillary processes

the maxillary process of the early embryo gives rise to all of these EXCEPT

 sides of upper lip
secondary palate
cheeks
alae of the nose

the best definition of a Placode is

in the development of the oral cavity the embryonic origin of area A in figure 1 is the

the most common defects of ororfacial development are, unilateal and bilateral cleft lips.  The facial abnormalities are the failure of which facial processes to fuse with the maxillary processes

Meckels cartilage participates in the formation of all of the following EXCEPT

eardrum
incus
malleus
mandible

which of the following phrases concerning the second branchial arch is CORRECT

 it is called the mandibular arch
it contains Reicherts cartlidge
it forms into the muscles of mastication
it is associated with the trigeminal nerve

Recherts cartilage contributes to the formation of NONE of the following EXCEPT

eardrum
malleus
lower portion of the hyoid bone
upper portion of the hyoid bone

the six branchial arches, groove, and the three pharyngeal pouches are the embryonic precursors to which of the following structures of the human adult, ear, neck, thyroid, and trachea

mandibular/1st branchial arch
branchial groove
hyoid/2nd brachial arch
3rd brachial arch
4-6 brachial arch
1st pharyngeal pouch
2nd pharyngeal pouch
3 pharyngeal pouch

the branchial arches are six pairs of stacked bilateral swellings of tissue that appear inferior to the stomodeum.  The branchial arches include the maxiallry arch

true of false statements

all three embryonic layers are involved in facial development

true of false
True False

the mandibular arch during the embryonic period is the

fusion of the two mandibular processes
swelling found superior to the stomodeum
stucture that gives rise to the lateral nasal proceses
posterior portion of the hard palate

the overall growth of the face is in a superior and posterior direction in relationship to the cranial base

true of false
True False

the paired maxillary processes fuse at the midline to form the mandibular arch

true of false
True False

the placodes are rounded areas of specialized, thickened ectoderm found at the location of developing special sense organs

true of false
True False

the stomodeum initially appears as a shallow depression in the embyronic surface ectoderm at the cephalic end

true of false
True False

which of the following structures is initially formed during the fifth week of prenatal development

neural tube
palatal processes
mandibular arch
intermaxillary segment

list two structures that will develop from the maxillary processes

which period of prental development is characterized by increased cellular differintiation

unattached conceptus
preimplantation period
embryonic peroid