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18 Cards in this Set
- Front
- Back
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Pharyngeal arches contain ___ mesoderm & Neural Crest cells
mesoderm generally differentiate into Muscles & Arteries neural crest cells generally differentiate into Bone & Connective tissue |
Pharyngeal arches contain ___ mesoderm & Neural Crest cells
mesoderm generally differentiate into Muscles & Arteries neural crest cells generally differentiate into Bone & Connective tissue |
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Pharyngeal pouches (1,2,3,&4) are evaginations of ___ lining the foregut
Pharyngeal Grooves are invaginations of ___ |
Pharyngeal pouches (1,2,3,&4) are evaginations of ___ lining the foregut
Pharyngeal Grooves are invaginations of ___ |
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1st Pharyngeal Arch
Which Cranial Nerve? Mesodermal Derivatives Neural Crest Derivatives |
1st Pharyngeal Arch
[V] Mesoderm: Muscle of Mastication, Mylohyoid Anterior Digastic Tensor Veli Palatini, Tensor Tympani Neural Crest: Incus, Malleus, Mandible, Maxilla Zygomatic SphenoMandibular, Squamous Temporal Vomer, Palatine (Merkel's) |
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2nd Pharyngeal Arch
Which Cranial Nerve? Mesodermal Derivatives Neural Crest Derivatives |
2nd Pharyngeal Arch
[VII] Mesoderm: Facial expression Posterior Digastic Stapedius Neural Crest: Stapes, Styloid process, Stylohyoid ligament Lesser Horn & Upper body of Hyoid (Reichert's) |
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3rd Pharyngeal
Which Cranial Nerve? Mesodermal Derivatives Neural Crest Derivatives |
3rd Pharyngeal
[IX] Mesoderm:Stylopharyngeus Common/Internal Carotid Neural Crest: Greater horn & Lower body of Hyoid |
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4th Pharyngeal
Which Cranial Nerve? Mesodermal Derivatives Neural Crest Derivatives |
4th Pharyngeal
[X] Mesoderm: Muscles of Soft Palate (≠ tensor vali palatini) Muscles of Pharynx (≠ stylopharyngeus) Cricothyroid, Criopharyngeus, Cartilage of Larynx Right SubClavian Arch of Aorta Neural Crest: NONE |
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6th Pharyngeal
Which Cranial Nerve? Mesodermal Derivatives Neural Crest Derivatives |
6th Pharyngeal
Which Cranial Nerve? Mesoderm: Intrinsic Muscles of Larynx Muscles of Upper Esophagus Laryngeal Cartilages Right Subclavian Ductus Arteriosus Neural Crest: NONE |
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Derivatives 1st Pharyngeal Pouch
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Derivatives 1st Pharyngeal Pouch are
epithelial lining of Auditory Tube epithelial lining of Middle Ear Cavity |
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Derivatives 2nd Pharyngeal Pouch
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Derivative 2nd Pharyngeal Pouch
Epithelial lining of Palatine Tonsil crypts |
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Derivatives 3rd Pharyngeal Pouch
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Derivatives 3rd Pharyngeal Pouch are
Inferior Parathyroid Gland Thymus |
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Derivatives 4th Pharyngeal Pouch
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Derivatives 4th Pharyngeal Pouch
UltimoBrachial body - for parafollicular cells (C cells) of Thyroid and secret Calcitonin |
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Derivatives of 1st Pharyngeal Groove
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Epithelial lining of External Auditory Meatus
2,3 & 4 - Obliterate into a million little bio hazardous particles that destroy the fetus's soul and cage him an a eternal life of demonic servitude |
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Derivatives of 1st Pharyngeal Membrane
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Derivative of 1st pharyngeal Membrane
Tympanic Membrane 2,3 & 4 - obliterated |
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Development of Thyroid
From the floor of the pharynx, ___ lining of foregut forms the ___, which migrates caudally. During migration it remains connected to the tongue via ___. |
Development of Thyroid
From the floor of the pharynx, ENDODERMAL lining of foregut forms the THYROID DIVERTICULUM, which migrates caudally. During migration it remains connected to the tongue via THYROGLOSSAL DUCT. The foramen cecum is a remanent of the thyroglossal duct structure |
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Development of Oral Tongue
What are its characteristic features? |
Development of Oral Tongue (anterior 2/3)
Medial, and 2 Distal tongue buds develop from floor of pharynx, associated with 1st Pharyngeal arch. The tongue buds grow and fuse to form the Median Sulcus. Oral part is characterized by Filiform, fungiform, circumvallate papillae |
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Development of Pharyngeal Tongue
Forms from __ & ___ that develop from the floor of the pharynx What are its characteristic features? |
Development of Pharyngeal Tongue
Forms from COPULA & HYPOBRANCHIAL EMINENCE that develop from the floor of the pharynx line of fusion with Oral (ant 2/3) part is called the Terminal Sulcus. Pharyngeal Tongue is characterized by the Lingual Tonsils |
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What is Waldeyer's Ring?
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the lymphoid tissue ring located in the pharynx and to the back of the oral cavity
Pharyngeal Tonsil (adenoids) Palatine Tonsils Lingual Tonsils |
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Development of Muscular Tongue
The muscles of the tongue are derived from ___ that migrate into tongue from ___ Name the intrinsic & extrinsic muscles? |
The muscles of the tongue are derived from MYOBLASTS that migrate into tongue from OCCIPITAL SOMITES
Name the intrinsic & extrinsic muscles? Hyoglossus - [IX] Styloglossus - [IX] Genioglossus - [IX} Palatoglossus - [X] |
