ANATOMY
44
7.
Which one of the following statements concerning the
relations of the arch of the aorta is INCORRECT
Pg 143, 145
a.
the ascending aorta arches backwards to reach the body
of the fourth thoracic vertebra
T - as per paragraph below
b.
the arch is crossed on its left side by the phrenic
and vagus nerves
T - picture, difficult to tell but left side looks like phrenic and vagus
are close to aortic arch.
c.
the left recurrent laryngeal nerve passes upwards on
the left side of the arch of the aorta
F - Pg 150 loops around subclavian on right; on left runs around arch
of aorta and ascends in tracheo-oesophageal groove – so runs upward
on right side of aorta
d.
ends by becoming the thoracic aorta posterior to the
2nd left sternocostal joint
T
e.
the trachea lies on the right side of the arch of the aorta
T
The arch of the aorta, the curved continuation of the ascending aorta begins
posterior to the 2
nd
right sternocostal joint and the level of the sternal angle and
arches superoposteriorly and to the left. The arch of the aorta ascends anterior
to the right pulmonary artery and the bifurcation of the trachea to reach it’s apex
at the left side of the trachea and oesophagus, as it passes over the root of the
left lung. The arch descends of the left side of the body of T4 vertebrae.