Arch 4


Arterial arches video  -Interactive video text

The 3rd arch together with the 4th becomes anchored to the right and left horns of the aortic sac. The 3rd aortic arch becomes the common carotid artery.

The right horn of the aortic sac becomes the brachiocephalic trunk while the right 4th arch connected to it become the right subclavian artery.

The 4th arch on the left will form the arch of the aorta as it will communicate with the dorsal aortae on the left to form the descending aorta. The communication between the 3rd and 4th arch of the dorsal aorta now disappears or regresses.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   

Oluwole Ogunranti

Practical  Gross  Museum  Scan  Malformations

 

 

 

 

 

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