wow all these detail explanation got me excited for my detail scan. so everything ok for your pregnancy so far?baby's head circumference, baby's skeletal details, spine length, heart size & beat rate, leg length (from groin to thigh, then knee to feet), feet size, making sure all ten fingers "available", making sure all ten toes, sometimes the radiologist will try to wake baby up if he's sleeping just to make sure when baby moves his movements are fine & dont't signal anything wrong, etc etc
if most of your gynae visits have always been to check standard things (scan also once in a while), the detailed scan is when you can see the profile of your baby's face very clearly. not the face but the profile. also when the radiologist scans your baby's face you will see a frontal scan of his facial skeleton so you'll see how far apart his eyes are, whether his nose got bridge or not, how pointed his chin is etc.
it's all very exciting =)
but dont't take the radiologist casual comments to heart . during my detailed scan my radiologist said my baby had a button nose (i.e. not sharp), but when he came out he had quite a high bridge, so with some "tweaking" & practise he stands a good chance of having a sharp nose =)