Lecture 4 Palate And Tongue Flashcards
The tongue and palate develop during _____ week to ______ week. spanning the later __________ period and early ______ period
4, 12, embryonic, fetal
The formation of the palate starts during the ________ week. Which is in the _________ period
Fifth, embryonic
The palate is formed from two separate embryonic structures the ____________ and the ___________
Primary palate, secondary palate
The palate is completed during the ________ week which is within the ________ period
12, fetal
Which palate is formed during the fifth to sixth week
The primary palate
The primary palate forms from ___________ which is from fused _____________
Intermaxillary segment, medial nasal processes
The secondary palate forms during week ________ to __________
6-12
The secondary palate is forms from fused
Palatal shelves from maxillary processes
The final palate is formed during week
12
The final palate is fusion of
All three processes
This gives rise to the primary palate
Intermaxillary segment
The bilateral maxillary processes give rise to
Two palatal shelves or lateral palatine processes
Fusion of the palatal shelves happen around week
8
The secondary palate will give rise to
The posterior two thirds of the hard palate
The posterior 2/3’s of the hard palate include which teeth
Maxillary canines and posterior teeth
Does the nasal cavity form at a different time or same time as the palate
Same time as the palate
Nasal cavity serves as part of which system
Respiratory system
Nasal septum appears near week
8
A deviated septum occurs when
The thin wall that makes up the nasal septum inside the nose is displaced to one side
What separates the right and left nasal cavities
The nasal septum
The tongue develops during the ______ to ______ week of prenatal development
4th to 8th
Tongue develops from independent _________ located internally on the floor of the ___________
Swellings, primitive pharynx
The primitive pharynx is formed by
The first four branchial arches
The tongue is completed in week ______ by the merging of __________ swellings of body and ________ of base
8, anterior, copula
The ____________ develop on each side of the tuberculum impar
Lateral lingual swellings
The tuberculum impar is also known as
Median tongue bud
The paired lateral lingual swellings grow in size and merge with each to cover the ____________
Tuberculum impar
The anterior 2/3’s of the tongue is also known as
The body of the tongue
How is the body of the tongue formed
The lateral lingual swellings grow in size and merge to cover the tuberculum impar
Immediately posterior to the fused lateral swellings is a swelling known as
The copula
Even farther posterior to the copula is is the projection of a third and fourth median swelling called
The epiglottic swelling or hypopharyngeal eminence
Another name for the epiglottic swelling is
Hypopharyngeal eminence
The copula comes from what pharyngeal arch
2nd arch
The copula contributes to the
Mucosa of the tongue (taste buds)
The third and fourth arch overgrow the __________ almost completely
2nd arch
Hypopharyngeal eminence derived from what pharyngeal arch
3rd and 4th arch
Lateral lingual swellings from which pharyngeal arch
1
Tuberculum impar comes from which pharyngeal arch
1
What forms the muscles of the tongue
Occipital somites
Occipital somites migrate to the tongue to form
The musculature of the tongue. Both extrinsic and intrinsic
Ankyloglossia is described as
Tongue tied
Ankyloglossia results in
A short attachment of the lingual frenum to the apex of the tongue
