The left fourth aortic arch vessel in an embryo becomes thea. left common carotid artery.b. left subclavian artery.c. aortic arch.d. left pulmonary artery
The left fourth aortic arch vessel in an embryo becomes the
a. left common carotid artery.
b. left subclavian artery.
c. aortic arch.
d. left pulmonary artery
A series of embryological vascular structures which arise from the aortic sac and give rise to the head and neck's great arteries are termed aortic arches. They can be located ventral to the dorsal aorta and are also known as pharyngeal arch arteries.
The aortic arches are present in pairs. The left fourth arch vessels form the aorta's arch between the left carotid arteries' origin and the ductus arteriosus terminus. In contrast, the subclavian vein is formed from the fourth right arch. Thus, the left fourth aortic arch vessel in an embryo becomes the aortic arch.
Hence, option 'c' is correct.
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