18 Questions
What happens to the dorsal aorta between the entrance of the third and fourth arches?
It disappears
Where does the right dorsal aorta disappear according to the text?
Between the third and fourth arches
What is the role of recurrent laryngeal nerves according to the text?
Supply nerves to the larynx and have a recurrent course
What does the right recurrent laryngeal nerve hook around?
Right subclavian artery
What happens to the distal part of the sixth aortic arch on the left side?
It forms the ductus arteriosus
From which intersegmental artery is the left subclavian artery formed?
Seventh intersegmental artery
What happens to the sixth aortic arch on the left side?
Persists as the ductus arteriosus
Which artery is formed from the right seventh intersegmental artery?
Right subclavian artery
What becomes the pulmonary arteries?
Left pulmonary artery
What happens to the distal portion of the sixth aortic arch on the right side?
Loses connection with the dorsal aorta and disappears
Which artery does the left distal part of the sixth aortic arch persist as?
Ductus arteriosus
Where do the seventh intersegmental arteries migrate to?
Level of the fourth arch
What is the classical clinical sign of coarctation of the aorta?
High blood pressure in the arms and low in the legs
What happens to the right recurrent laryngeal nerve as described in the text?
Hooks around the right subclavian artery
Which great vessel abnormality involves persistence of the right dorsal aorta between the seventh intersegmental artery and its junction with the left dorsal aorta?
Double aortic arch
What is a common abnormality associated with premature infants among the great vessels?
Patent ductus arteriosus
Which structure remains in place on the left side and hooks around the ligamentum arteriosum?
Right recurrent laryngeal nerve
What role does the fifth arch play in the definitive vascular pattern transformation?
It never fully forms during development
Explore the transformation of aortic arches and dorsal aortae in embryonic development before and after the definitive vascular pattern. Learn about the changes in arteries and nerves as the vascular system matures.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
