Flashcards in 510-3 Deck (32):
What is branchial?
An old name to describe the pharyngeal region of fish/amphibians that gives rise to the gills
What is the stomodeum/stomatodeum?
Location where the oral cavity will be. Its separated from the opening of the gut by the buccopharyngeal membrane
What is intramembranous ossification?
When embryonic connective tissue is replaced by bone. Usually found in the flat bones of the skull
What is endochondral ossification?
When cartilage is replaced by bone. Usually in long bones that use some sort of model for growth.
What is the mandibular canal?
Area of the mandible where the bone grows completely around the inferior alveolar nerve.
Explain Ramus development.
The ramus forms through endochondral ossification. The ramus grows away from Meckel's cartilage at the lingula.
Explain condylar cartilage development.
The condylar cartilage forms independently and then fuses with the mandibular condyle.
What is the coronoid cartilage?
Transient growth that disappears before birth
Styloid process from Temporal Bone
Lesser horns of hyoid bone
Upper portion of hyoid bone
Greater horns of the hyoid
Lower part of the hyoid
Cartilage of the Larynx
External auditory meatus
Inferior Parathyroid Gland
Superior Parathyroid Gland
#5 trigeminal nerve (mastication)
#7 Facial nerve (facial expression)
#9 glossopharyngeal nerve (straps of the neck/swallowing)
#10 vagus nerve (straps of the neck/ swallowing)
Lateral Cervical Cysts
Develop when the 2nd, 3rd, or 4th clefts don't obliterate completely
Formed from the oral tissue originating from the foramen cecum traveling down to below the larynx (thyroglossal duct)
Follicular and Parafollicular Cells
follicular cells- produce T3 and T4
parafollicular cells- (C cells) produce calcitonin (derived from ultimobrachial body)
Oral tissue that didn't make it to the thyroid so are trapped along the thyroglossal duct located in the midline of the neck
What are the 5 facial prominences?
2.) Medial Nasal
3.) Lateral Nasal
Groove between the lateral nasal prominence and the maxillary prominence
Region that results from pushing together the maxilla. Consists of the Philtrum of the upper lip, the 4 incisors on the maxilla and the primary palate
Midline between the primary and seconday palate
Grow on either side of the tongue and fuse to form the secondary palate
Condition in which the frenulum may extend to the tip of the tongue