Embryology: Pharynx and Larynx Flashcards
What is the pharyngeal apparatus?
It consists of pharyngeal arches, pouches, grooves, clefts and membranes
What is the first endocrine gland to develop in the embryo?
Thyroid Gland
What does the 1st cleft become?
External Auditory Meatus
What does the 1st membrane become?
Tympanic Membrane
What does the 1st pharyngeal pouch become?
Tympanic Cavity
Auditory Tube
What does the 2nd pharyngeal pouch become?
Palatine Tonsils
Tonsillar Fossa
What does the 3rd pharyngeal pouch become?
Inferior Parathyroid Gland
Thymus
What does the 4th pharyngeal pouch become?
Superior Parathyroid Gland
What is the 1st pharyngeal arch and its derivatives?
Mandibular - CN V
Muscles of Mastication
What is the 2nd pharyngeal arch and its derivatives?
Hyoid - CN VII
Muscles of Facial Expression
What is the 3rd pharyngeal arch and its derivatives?
CN IX
Stylopharyngeus
What is the 4th-6th pharyngeal arch and its derivatives?
CN X
Cricothyroid and Constrictors of Pharynx
Intrinsic Muscles of Larynx
