Why Is Rib 2 Atypical
The First Rib Is Atypical Because It Is Wide and Short, Has Two Costal Grooves, and One Articular Facet. the Second Rib Is Thin, Long, and Has a Tuberosity on...
The first rib is atypical because it is wide and short, has two costal grooves, and one articular facet. The second rib is thin, long, and has a tuberosity on its superior surface for the attachment of the serratus anterior muscle.
Is rib 2 typical or atypical?
Typical ribs are those numbered 2 to 10 with ribs 1, 11 and 12 considered atypical. Some authors however include ribs 2 and 10 also atypical.
Why are the inferior two pairs of ribs considered floating ribs?
The last two pairs of ribs are floating ribs because they are not attached to the sternum. The floating ribs are less stable and risk breaking because they have only one attachment dorsally to the vertebrae and have very thin bone tissue locked in muscle as they extend laterally.
Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.
