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29 Cards in this Set
- Front
- Back
Branchial Apparatus |
Group that includes branchial arches, brachial grooves and membranes, pharyngeal pouches. |
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Branchial Arches |
Six stacked bilateral swellings of tissue that appear inferior to stomodeum, including mandibular arch. |
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First Branchial Arch |
Mandibular arch in embryo |
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Second Branchial Arch |
Brachial arch inferior to mandibular arch in embryo or "hyoid arch". |
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Third Branchial Arch |
Branchial arch in embryo responsible for formation of parts of hyoid bone. |
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Fourth Branchial Arch |
Branchial arch in embryo that participates in formation of laryngeal cartilages. |
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Fifth Brachial Arch |
Rudimentary embryonic brachial arch that is absent or included with fourth branchial arch. |
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Sixth Brachial Arch |
Branchial arch in embryo that fuses with fourth branchial arch to participate in the formation of laryngeal cartilages. |
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Meckel's Cartilage |
Cartilage that forms within each side of mandibular arch and that disappears as bony mandible forms. |
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Reichert's Cartilage |
Cartilage in second branchial arch that eventually disappears. |
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Cervical cysts |
Developmental cysts formed when branchial grooves are not obliterated. |
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Cleft lip |
Developmental disturbance of upper lip from failure of fusion of maxillary processes with medial nasal process. |
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Hyoid Arch |
Second branchial arch that lies inferiorly to mandibular arch in embryo. |
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Intermaxillary Segment |
Growth from paired medial nasal processes on inside of stomodeum. |
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Mandibular Arch |
Lower dental arch with mandibular teeth or first branchial arch in embryo. |
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Mandibular Processes |
Processes of first branchial arch that fuse at midline to form mandibular arch. |
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Nasal Pits |
Depressions in center of each nasal placode that evolve into the nasal cavities. |
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Oronasal Membrane |
Embryonic membrane that disintegrates to bring the nasal and oral cavities into communication. |
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Pharyngeal Pouches |
Four pairs of evaginations lining the pharynx between branchial arches. |
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Placodes |
Areas of ectoderm found at location of developing special sense organs on the embryo
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Lens Placodes
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Placodes forming eyes and related tissue. |
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Nasal Placodes |
Placodes that develop into olfactory organ for the sensation of smell located in mature nose. |
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Placode otic |
Placodes in embryo forming future internal ear. |
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Primitive Pharynx |
Cranial part of foregut that forms oropharynx. |
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Frontonasal Processes |
Prominence in upper facial area at cephalic end of embryo. |
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Lateral Nasal Processes |
Tissue on outer part of nasal pits that forms nasal alae. |
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Maxillary Processes |
Prominence from mandibular arch that grows superiorly and anteriorly on each side of stomodeum. |
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Medial Nasal Processes |
Middle part of the tissue growing around nasal placodes located between nasal pit. |
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Stomodeum |
Primitive mouth in embryo |