Aortic Arches Flashcards
(28 cards)
What are the aortic arches also known as
Pharyngeal arches
What are the pharyngeal arches seperated by
Pharyngeal clefts
How many aortic arches are there
6 arches
What is each arch associated with
A cranial nerve
How many pharyngeal clefts are there
4
What does the 1st pharyngeal cleft give rise to
The external auditory meatus
What happens to the 2nd, 3rd and 4th pharyngeal clefts
They become temporary cervical sinuses but are obliterated by the rapidly proliferating 2nd arch
What are the 2 parts of the 1st pharyngeal arch
Maxillary prominence and the mandibular prominence
What does the maxillary prominence become
It it the future maxilla, zygomatic bone and part of the temporal bone
What does the mandibular prominence become
Future mandible
What does the artery of the 1st pharyngeal arch become
It becomes the terminal branch of the maxillary artery
What is the cranial nerve associated with the 1st pharyngeal arch
The trigeminal nerve, cranial nerve V
What are the 2 arteries associated with the 2nd pharyngeal arch
The stapedial artery and the hyoid artery
What does the stapedial artery become
It connects the embryonic precursors for the internal carotid, the internal maxillary and the middle meningeal arteries
What does the hyoid artery give rise to
The corticotympanic artery
What is the cranial nerve associated with the 2nd pharyngeal arch
The facial nerve, cranial nerve VII
What does the artery of the 3rd pharyngeal arch become
The common carotid artery and the proximal portion of the internal carotid artery
What does the cartilaginous portion of the 3rd pharyngeal arch become
It gives rise to the lower body and the greater horn of the hyoid bone
What cranial nerve is associated with the 3rd pharyngeal arch
The glossopharyngeal nerve, cranial nerve IX
What does the 3rd pharyngeal arch give rise to in terms of nerves
The stylopharyngeus
What is the right derivative of the 4th pharyngeal arch
The proximal portion of the subclavian artery
What is the left derivative of the 4th pharyngeal arch
Aortic arch
What does the 4th pharyngeal arch give rise to
It gives rise to the laryngeal cartilages
What cranial nerve is the 4th pharyngeal arch associated with
It is associated with the superior laryngeal branch of the vagus nerve cranial nerve X
