What are the skeletal derivatives from PA 1?
Meckel’s Cartilage:
- Incus and malleolus
- Mandible
- Sphenomandibular Ligament
What are the muscular derivatives from PA 1?
Muscles of Mastication
What CN is derived from PA 1?
CN V (Trigeminal)
What structures are derived from the pouch of PA 1?
Tympanic Cavity
Mastoid Antrum
Pharyngotympanic Tube
What structure is derived from the groove of PA 1?
External Auditory Meatus
What structure is derived from the membrane of PA 1?
Tympanic Membrane
What are the skeletal derivatives from PA 2?
Reichert's Cartilage: Stapes Styloid Process of Temporal Bone Stylohyoid Ligament Lesser Cornu of Hyoid Body
What are the muscular derivatives from PA 2?
Facial Muscles
What CN is derived from PA 2?
CN VII (Facial)
What structures are derived from the pouch of PA 2?
Tonsillar Sinus
Lymphoid Tissue
What are the skeletal derivatives from PA 3?
Greater Cornu of Hyoid Body
What is the muscular derivative from PA 3?
Stylopharyngeus Muscle
What CN is derived from PA 3?
CN IX (Glossopharyngeal)
What structures are derived from the pouch of PA 3?
Inferior Parathyroid
Thymus
What are the skeletal derivatives from PA 4 only?
Epiglottis
What are the skeletal derivatives from PA 4 and 6?
Laryngeal Cartilage
What is the muscular derivative from PA 4?
Cricothryoid
Levator Veli Palatini
Constrictors fo Pharynx
What CN is derived from PA 4?
What specific branch?
CN X (Vagus) -Superior Laryngeal Branch
What structures are derived from the pouch of PA 4?
Superior Parathyroid
Ultimobranchial body –> Thyroid Gland/Parafollicular Cells
What is the muscular derivative from PA 6?
Intrinsic Layers of Larynx
What CN is derived from PA 6?
What specific branch?
CN X (Vagus) -Recurrent Laryngeal Branch
