Embryology of the face Flashcards
Development of the face involves __________ and _______ of various tissues to form final product
The formation and cordination
Functions of the face
Hearing
Mission
Breathing
Testing
Feeding
Facial expression
Facial development begins during _________
Early embryogenesis
_________ is the membrane where the face forms
Oropharyngeal membrane
Oropharyngeal membrane is seen in the embryo on the ________ week between ________ and _______
Week 3
The heart and the brain
_________ are two ectodermal thickenings that appear at the end of the 4th week on the frontonasal processes
The nasal placodes
The frontonasal process arises from _________ and covers ______
The neural crest and covers the brain
The frontonasal process gives rise to ________ and _______
Lateral nasal processes and medial nasal processes
_______ develop medial to the nasal placode
The medial nasal processes
_________ develop lateral to the nasal placode
Lateral nasal processes
By 10th week, the inter-maxillary process forms ________
The nasal bridge and philtrum of the lip
The medial nasal process gives rise to _________
Inter-maxillary process
The tissues of the 1st mandibular pharyngeal arch originated from the __________
Mesorderm and neural crest
The 1st arch will give rise to ________ and _________
Two mandibular processes
Two maxillary processes
The fusion of the maxillary process, lateral nasal placodes and medial nasal processes results in formation of _______
The philtrum of the lip
The improper fusion of the maxillary processes, lateral nasal processes, and medial nasal processes leads to ______ in newborn
Orofacial cleft
At _____ week the embryo has facial feature with human appearance
At 7th week
The palate is the tissue between _______ and ______
Nasal and oral cavity
The palate separated in ________ and _______
Primary and secondary palate
_______ forms the rest of the hard palate and the soft palate
Secondary palate
____________ give rise to anterior triangular one - third from the incisive foramen and include the four upper incissors
Primary palate
_________ connects the oral cavity to the nasal cavity
Primitive choana (nasopharynx)
________ and _______ causes cleft palate
Growth retardation and mechanical obstruction
_________ is the most common congenital disability
Cleft lip/palate
_________ refers to the choana
Oro nasal membrane
Coloboma, Retarded growth, atresia choanae, genital hypoplasia and heart disease are anomalies associated with _________
Choana Atresia
Facial anomalies includes;
Cleft lip
Cleft palate
Choanal atresia
The tongue develops from _____ week of intrauterine life
The 4th week
_______ ________ _________ and _______ pharyngeal arch contributes to the development of the tongue
The 1st, 2nd, 3rd and 4th Pharyngeal arch
The growth of the tongue begins with a swelling from the first pharyngeal arch known as
Tuberculum impar
________ and ______ are muscles of the tongue
The extrinsic and intrinsic muscle
The Extrinsic muscles include
Palatoglossus
Styloglossus
Hyoglossus
Genioglossus
________ muscles allow the tongue to move in all direction and originates from the structures adjacent
The extrinsic muscle
Changing the shape of the tongue is done by _______
The intrinsic muscle
The intrinsic muscle include
Superior longitudinal muscle
Inferior longitudinal muscle
Vertical muscle
Transverse muscle
The dorsal surface of the tongue is covered by _______
Stratified squamous epithelium
Functions of the tongue, includes
Tasting function
Speech function
Food manipulation
________ is referred to as the keel structure
The nasal fin
The philtrum of the upper lip, the nasal dorsum, the septa and primary palate originates from ______
Maxillary process
Failure of midline fusion during embryogenesis results in ______
The spectrum of cleft lip/palate
Structure of the nasal cavity is derived from the _______
First branchial arch
