Cleft Flashcards
Histology
Study of plant and animal tissue
Embryology
Study of prenatal growth
Oral embryology
Study of development of oral cavity
Pregnancy
9 month process; begins with fertilization of the ovum
Phases of pregnancy
1.zygote 2. Embryo 3. Fetus
Cell layers
Ectoderm(outer) endoderm (inner) mesoderm (middle)
Epithelial
Skin. Mucous. Mucosa. Function is to protect
Connective cells
Rebuild weak or damaged tendons. Support.
Cells
- Diverse 2. Independent 3. Oxygen 4. Release energy
Stomodeum
Initial opening of the mouth
Pharynx
Uppermost digestive tract
Ossification
Referring to bone. Bone being formed
Differentiating cells
Develops into any kind of cell.
Ectoderm cell layer
Outer cell layer
Endoderm cell layer
Inner layer cell
Mesoderm cell layer
Middle of the cell
Nasal Septum
Section of skin separating nasal cavities
Nasal Processes
Embryonic structure that forms the upper lip and nose
Mitosis
Cell division
Proliferate
Reproduce rapidly
Cleft lip
“Hare lip” failure of the maxillary processes to fuse with the medial and nasal processes
Cleft palate
Failure of the palatial shelves to fuse
3-4 weeks of embryonic development
Pharynx. Stomodeum. Two structures are evident, maxillary and mandibular.
5 weeks embryonic development
Tongue develops
6 weeks
Nasal process(structure) frontal and lateral start to form Palate starts to form
7 weeks
Nostrils form. Tongue separates. Maxillary process starts to move towards middle. Nasal processes start to move together
8 weeks
Eyes nose mouth are recognizable.
10 weeks
Maxillary arch is formed. Two nasal processes meet and fuse. Mandibular arch is still forming
Open pallet stage
Migration of the nasal processes and fusion of the septum
H shaped cavity for nasal and oral cavity is formed
Closed palate stage
Tongue drops allows pallet to fuse. Anterior fuses first. Ossification of the anterior pallet begins.
