Identify the structure (not the layer)

Identify the red vessel

Identify the muscular ridges

Identify “A” (post-birth).

Identify the starred vessel

Blood leaving this vessel enters __?__ (what vessel?)

Identify the heart layer (this layer exists in all chambers, not just the one highlighted).

This artery(s), in the right hand (also found in the left), connects the [radial] and [ulnar] arteries.

Blood leaving this chamber passes through what valve?

Identify the layer of the heart