Embryo- Primitive Pharynx & tongue
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Pharyngeal/Branchial Cleft is derived from the...
Pharyngeal Arches are derived from the...
- Neural Crest Cells
Pharyngeal Pouches are derived from
Pharyngeal Pouch #1 => (2)
- Tympanic Cavity
- Auditory Tube (middle ear)
Pharyngeal Pouch #2 => (1)
Pharyngeal Pouch #3 => (2)
Pharyngeal Pouch #4 => (2)
- Ultimobranchial Body (=> parafollicular cells)
Thyroid follicles are derived from...
endoderm (floor of pharynx) *
Thyroid CT components are derived from...
Development of thyroid:
Thyroid Duct -> Thyroglossal Duct
Remnant of the thyroglossal duct:
Foramen Cecum of the tongue
Muscles of mastication develop from which pharyngeal structure?
First Pharyngeal Arch
Digastricus is develop from which pharyngeal structures?
First and Second Pharyngeal Arches
Innervation to pharyngeal Arches:
- 1st= 5
- 3rd= 9
- 4th= 10
1st Pharyngeal Cleft =>
External Acoustic Meatus
Clefts 2, 3 and 4 =>
cervical Sinus (regresses)
Skeletal Components of the Pharyngeal Arches are derived from ___
Neural Crest Cells (Neural Ectoderm)
Rostral 2/3 of tongue develops from which pharyngeal structure
1st Pharyngeal ARCH
Caudal 1/3 of the tongue develops from what structures...
- Hypobrachial Eminence
- Pharyngeal Arch 2,3 & 4
The body of the tongue is derived from ___
Striated mm of the tongue, develops from...
The tongue is innervated by:
- 5 (trigeminal)
- 7 (Facial)
- 9 (glossopharyngeal)
- 12 (hypoglossal)
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