Aortic Arches

Question 1

What are the aortic arches also known as

Answer 1

Pharyngeal arches

Question 2

What are the pharyngeal arches seperated by

Answer 2

Pharyngeal clefts

Question 3

How many aortic arches are there

Answer 3

6 arches

Question 4

What is each arch associated with

Answer 4

A cranial nerve

Question 5

How many pharyngeal clefts are there

Answer 5

4

Question 6

What does the 1st pharyngeal cleft give rise to

Answer 6

The external auditory meatus

Question 7

What happens to the 2nd, 3rd and 4th pharyngeal clefts

Answer 7

They become temporary cervical sinuses but are obliterated by the rapidly proliferating 2nd arch

Question 8

What are the 2 parts of the 1st pharyngeal arch

Answer 8

Maxillary prominence and the mandibular prominence

Question 9

What does the maxillary prominence become

Answer 9

It it the future maxilla, zygomatic bone and part of the temporal bone

Question 10

What does the mandibular prominence become

Answer 10

Future mandible

Question 11

What does the artery of the 1st pharyngeal arch become

Answer 11

It becomes the terminal branch of the maxillary artery

Question 12

What is the cranial nerve associated with the 1st pharyngeal arch

Answer 12

The trigeminal nerve, cranial nerve V

Question 13

What are the 2 arteries associated with the 2nd pharyngeal arch

Answer 13

The stapedial artery and the hyoid artery

Question 14

What does the stapedial artery become

Answer 14

It connects the embryonic precursors for the internal carotid, the internal maxillary and the middle meningeal arteries

Question 15

What does the hyoid artery give rise to

Answer 15

The corticotympanic artery

Question 16

What is the cranial nerve associated with the 2nd pharyngeal arch

Answer 16

The facial nerve, cranial nerve VII

Question 17

What does the artery of the 3rd pharyngeal arch become

Answer 17

The common carotid artery and the proximal portion of the internal carotid artery

Question 18

What does the cartilaginous portion of the 3rd pharyngeal arch become

Answer 18

It gives rise to the lower body and the greater horn of the hyoid bone

Question 19

What cranial nerve is associated with the 3rd pharyngeal arch

Answer 19

The glossopharyngeal nerve, cranial nerve IX

Question 20

What does the 3rd pharyngeal arch give rise to in terms of nerves

Answer 20

The stylopharyngeus

Question 21

What is the right derivative of the 4th pharyngeal arch

Answer 21

The proximal portion of the subclavian artery

Question 22

What is the left derivative of the 4th pharyngeal arch

Answer 22

Aortic arch

Question 23

What does the 4th pharyngeal arch give rise to

Answer 23

It gives rise to the laryngeal cartilages

Question 24

What cranial nerve is the 4th pharyngeal arch associated with

Answer 24

It is associated with the superior laryngeal branch of the vagus nerve cranial nerve X

Question 25

What is the right derivative of the 6th pharyngeal arch

Answer 25

The proximal part of the pulmonary arteries

Question 26

What is the left derivative of the 6th pharyngeal arch

Answer 26

The ductus arteriosus

Question 27

What cranial nerve is the 6th pharyngeal branch associated with

Answer 27

The recurrent laryngeal branch of the vagus nerve, cranial nerve X

Question 28

What happens to the 5th pharyngeal arch

Answer 28

It regresses soon after forming