<P> The lungs are located in the chest on either side of the heart in the rib cage . They are conical in shape with a narrow rounded apex at the top , and a broad concave base that rests on the convex surface of the diaphragm . The apex of the lung extends into the root of the neck , reaching shortly above the level of the sternal end of the first rib . The lungs stretch from close to the backbone in the rib cage to the front of the chest and downwards from the lower part of the trachea to the diaphragm . The left lung shares space with the heart , and has an indentation in its border called the cardiac notch of the left lung to accommodate this . The front and outer sides of the lungs face the ribs , which make light indentations on their surfaces . The medial surfaces of the lungs face towards the centre of the chest , and lie against the heart , great vessels , and the carina where the trachea divides into the two main bronchi . The cardiac impression is an indentation formed on the surfaces of the lungs where they rest against the heart . </P>
<P> The lungs are located in the chest on either side of the heart in the rib cage . They are conical in shape with a narrow rounded apex at the top , and a broad concave base that rests on the convex surface of the diaphragm . The apex of the lung extends into the root of the neck , reaching shortly above the level of the sternal end of the first rib . The lungs stretch from close to the backbone in the rib cage to the front of the chest and downwards from the lower part of the trachea to the diaphragm . The left lung shares space with the heart , and has an indentation in its border called the cardiac notch of the left lung to accommodate this . The front and outer sides of the lungs face the ribs , which make light indentations on their surfaces . The medial surfaces of the lungs face towards the centre of the chest , and lie against the heart , great vessels , and the carina where the trachea divides into the two main bronchi . The cardiac impression is an indentation formed on the surfaces of the lungs where they rest against the heart . </P>
where is the apex of the lung located
where is the apex of the lung located
the root of the neck , reaching shortly above the level of the sternal end of the first rib
the root of the neck , reaching shortly above the level of the sternal end of the first rib