Question

The sternal angle is at the same level as rib number
A) 1.
B) 2.
C) 3.
D) 5.

Answer 1

The sternal angle is at the same level as rib number 2, which attaches at the junction between the manubrium and the body of the sternum.

Step-by-step explanation:

The sternal angle is located at the junction between the manubrium and body of the sternum and is notably the site for the attachment of the second rib. Therefore, the answer to the question 'The sternal angle is at the same level as rib number' is B) 2.

The manubrium is the upper part of the sternum and attaches to the first rib and the clavicle on either side of the body, whereas the sternal angle marks the level where the second rib attaches. This anatomical landmark is important because the first rib is located behind the clavicle and cannot be as easily identified through palpation. The ribs from the third to the seventh attach to the body of the sternum, not the sternal angle.