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ch 4 development of the face and neck dental anatomy
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1a external
frontonasal process gives rise to
upper face
forehead
nasal septum
1a external
3 types of placodes
thickened ectoderm that develops into sensory organs
lens placodes-future eyes/migrate medially
otic placodes-future ears
nasal placodes-future nose and olfactory cells
1a nasal placodes submerge and create ------------- which will later be the nasal cavity.
nasal pits
1b external
frontonasal process:
medial nasal process gives rise to:
middle portion of the nose
intermaxillary segment:
maxillary incisors and primary palate
1c external
frontonasal process:
lateral nasal process gives rise to:
ala of the nose
2a external
maxillary process gives rise to:
mid face
sides of the upper lip
cheeks
secondary palate
posterior portion of maxilla with teeth
maxillary canines
zygomatic bone
portions of temporal bone
2a cleft lip is the failure of fusion between:
---------- and --------------. bilaterally
maxillary process and medial nasal processes
2a what forms from the fusion of the maxillary processes and the lateral nasal processes
and that gives rise to?
nasolacrimal groove
gives rise to
: nasolacrimal duct
2b stomodeum and oral cavity formation
(mandibular processes in book)
what is a stomodeum. its sealed off by?
primitive mouth
oropharyngeal membrane
2b oropharyngeal membrane disintegrates and opens into? what week does this happen?
primitive pharynx
during the fourth week
3 external
mandibular arch or first brachial arch gives rise to:
lower face
lower lip
mandible with teeth
trigeminal nerve V
muscles of mastication
temporomandibular ligaments
3a mandibular processes
first to form after stomodeum
what do the form -------. the fuse line is called ---------.
fuse in middle to become the mandibular arch. fuse line is called mandibular symphysis
3 external mandibular arch:
meckel's cartilage gives rise to:
malleus and incus
(middle ear bone)
4 external brachial groove
gives rise to:
eardrum
5 external hyoid arch or second brachial arch
gives rise to:
muscles of facial expression
suprahyoid muscle
facial nerve VII
5 external hyoid arch: reichert's cartilage
gives rise to:
stapes (middle ear bone)
styloid process
upper portion of hyoid bone
6 external third branchial arch
gives rise to:
phargngeal muscle
lower portion of hyoid bone
7 external fourth/sixth branchial arch
gives rise to
muscles of larynx and pharynx
8 internal first pharyngeal pouch
gives rise to:
auditory tubes
9 internal second pharyngeal pouch
gives rise to:
palatine tonsils
10 internal third/fourth pharyngeal pouch
gives rise to:
parathyroid gland
thymus gland
Author
Anonymous
ID
103722
Card Set
ch 4 development of the face and neck dental anatomy
Description
face and neck development archie brachial grooves and pouches
Updated
9/23/2011, 1:46:57 AM
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