Which of the following represent the commonest variation in the aeries arising from the arch of aoa?
Most common anomaly of the aoic arch seen in 10-20% individuals is characterized by the origin of the left common carotid aery from the brachiocephalic (innominate) trunk. Other common anomalies include: A four vessel arch with separate origins for the right common carotid and right subclan aeries (2.5%), Origin of the left veebral aery directly from a four vessel aoic arch typically between the ostia of the left common carotid and subclan aeries ( 2.4- 5.8%). Ref: Gray&;s anatomy text book of anatomy BD chaurasia 21st Ed.
Absence of brachiocephalic trunk
Left veebral aery arising from the arch
Presence of retroesophageal subclan aery
left common carotid aery arising from brachiocephalic trunk
All India exam