Pharyngeal Apparatus Diagram Flashcards
What are the skeletal derivatives from PA 1?
Meckel’s Cartilage:
- Incus and malleolus
- Mandible
- Sphenomandibular Ligament
- Anterior ligament of malleus
What are the muscular derivatives from PA 1?
Muscles of Mastication Mylohyoid Anterior Belly of digastric Tensor Veli Palatini Tensor Tympani
What CN is derived from PA 1?
CN V (Trigeminal)
What structures are derived from the pouch of PA 1?
Ear Structures
Tympanic Cavity
Mastoid Antrum
Pharyngotympanic Tube
Tympanic Membrane
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
Stylohyoid
Posterior belly of digastric
stapedius
What CN is derived from PA 2?
CN VII (Facial)
What structures are derived from the pouch of PA 2?
Tonsillar Sinus
Tonsillar 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?
4/6 - Laryngeal cartilage
4 - Epiglottis
What are the skeletal derivatives from PA 4 and 6?
4/6 - Laryngeal Cartilage
4 - epiglottis
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
