Second Intercostal Space

The 2nd rib is continuous with the sternal angle.

Second intercostal space. The intensity of p2 is determined relative the a2. The intercostal space ics is the space in between the two adjacent ribs. Reference lines help pinpoint findings vertically. Every space consists of intercostal muscles and neurovascular bundle of intercostal plane.

This article will discuss the anatomy and function od the intercostal spaces. Since there are 12 ribs on each side there are 11 intercostal spaces each numbered for the rib superior to it. The intercostal spaces are filled by the three groups of intercostal muscles. The aortic point is located right of the sternal border in the second intercostal space.

Use the diaphragm of your stethoscope. The intercostal space ics is the anatomic space between two ribs lat. The sound that emits from the aortic and pulmonic points is the s2 dub of the typical lub dub heartbeat. The pulmonic point is to the left of the sternal border in the second intercostal space.

Moreover they are traversed by the nerves arteries and veins of the thoracic cage such as intercostal arteries and veins. 2nd intercostal space starts from inferior portion of 2nd rib and ends at superior portion of 3rd rib. The insertion site is located in the second intercostal space the area between the second and third ribs counting from the top at the mid clavicular line an imaginary line perpendicular to the ribs approximately in line with the casualty s nipple on the same side of the chest as the penetrating wound. There are 11 intercostal spaces on each side each intercostal space is numbered for the rib superior to it.

The angle of louis also marks the site of bifurcation of the trachea into the right and left main bronchi and corresponds with the upper border of the atria of the heart. The intercostal spaces are the spaces amongst the two bordering ribs and their costal cartilages. External internal and innermost. At the second left intercostal space s 2 is generally louder shorter and sharper than s 1 s 2 has more high frequency energy than s 1 which is why dup a snappier sound than lub is used to characterize s 2.