Pharyngeal arch structures Flashcards
What is aortic arch 1?
maxillary
what is the cranial nerve of arch 1?
trigeminal
what muscles are associated with arch 1?
muscles of mastication
what are the skeletal derivatives of arch 1?
malleus, incus, sphenomandibular ligament, Meckels tympanic ring
what is the aortic arch of arch 2?
hyoid
stapedial
what cranial nerve is associated with arch 2?
facial
what muscles are associated with arch 2?
muscles of facial expression
what are the skeletal derivatives of arch 2?
stapes
styloid process
stylohyoid ligament
lesser horn of hyoid
body of hyoid
what is the aortic arch of arch 3?
internal carotid
what cranial nerves are associated with arch 3?
glossopharyngeal
what are the muscles of arch 3?
stylohyoid
pharyngeus
what are the skeletal derivatives of arch 3?
greater horn of hyoid
part of body of hyoid
what is the aortic arch of arch 4?
right subclavian aorta
what cranial nerves are associated with arch 4?
vagus
what are the muscles of arch 4?
pharyngeal
laryngeal
what are the skeletal derivatives of arch 4?
laryngeal cartilages
what is the first pharyngeal pouch?
mid ear auditory tube
what is the second pharyngeal pouch?
supratonsillar fossa
what is the third pharyngeal pouch?
thymus
inferior parathyroid gland
what is the fourth pharyngeal pouch?
superior parathyroid gland
posterior branchial body
what makes the cervical sinus?
pharyngeal grooves 2 3 and 4
what makes the EAM?
pharyngeal groove 1
