Pharyngeal Arches Flashcards
Which muscles are derived from the first pharyngeal arch?
Muscles of mastication
Digastric + mylohyoid
Which muscles are derived from the second pharyngeal arch?
Muscles of facial expression
Which muscles are derived from the third pharyngeal arch?
Stylopharyngeus
Which muscles are derived from the fourth pharyngeal arch?
Cricothyroid muscle and levator palatine
Which muscles are derived from the sixth pharyngeal arch?
Intrinsic muscles of larynx
Which artery is associated with the third pharyngeal arch?
Internal carotid artery
Which artery is associated with the fourth pharyngeal arch?
L - arch of aorta
R - brachiocephalic trunk
Which artery is associated with the sixth pharyngeal arch?
Pulmonary arteries
Which nerve is associated with the first pharyngeal arch?
Trigeminal (V2 and V3)
Which nerve is associated with the second pharyngeal arch?
Facial nerve
Which nerve is associated with the third pharyngeal arch?
Glossopharyngeal nerve
Which nerve is associated with the fourth pharyngeal arch?
Superior laryngeal branch of the vagus nerve
Which nerve is associated with the sixth pharyngeal arch?
Recurrent laryngeal branch of the vagus nerve
Which cartilage structures are derived from the first pharyngeal arch?
Meckel’s cartilage
- maxillary prominence
- mandibular prominence
- malleus and incus of middle ear
Which cartilage structures are derived from the second pharyngeal arch?
Reikert’s cartilage
- stapes of middle ear
- styloid process
- upper part of hyoid
Which cartilage structures are derived from the third pharyngeal arch?
Remainder of hyiod bone
Which cartilage structures are derived from the fourth pharyngeal arch?
Thyroid cartilage and cricoid cartilage
Which cartilage structures are derived from the sixth pharyngeal arch?
Arytenoid cartilage
Which structures are derived from the pouch of the first pharyngeal arch?
Eustachian tube and middle ear
Which structures are derived from the pouch of the second pharyngeal arch?
Crypts of palatine tonsils
Which structures are derived from the pouch of the third pharyngeal arch?
Dorsal - inferior parathyroid
Ventral - thymus
Which structures are derived from the pouch of the fourth pharyngeal arch?
Dorsal - superior parathyroid
Ventral - C cells of thyroid
