Were there certain defects both in the Body and the Soul of Christ?
Yes; and such were necessary for the end of the Incarnation, which was to make satisfaction for our sins -- to come on earth as one of us -- to be for us an example by the practice of the highest virtues of patience and immolation (XIV., XV.).
What were the defects Christ took upon Himself in His Body?
They were all those defects or miseries and infirmities which are to be found in the whole of human nature as a result of Adam's sin, such as hunger, thirst, death, and so on; but in Christ there were none of those defects that are the result of personal sin or of heredity (XIV. 1).
Was the Body of our Lord, putting aside the above-mentioned defects, of great perfection and beauty?
Yes, for such belonged to the dignity of the Word of God, who was hypostatically united to this Body; and such was due also to the action of the Holy Ghost, by whom this Body was formed directly in the womb of our Blessed Lady; but of this we shall speak shortly.
Next - The Catechism of the Summa - Tertia Pars - IX. OF THE DEFECTS OF CHRIST'S HUMAN NATURE; OF THOSE OF THE BODY; AND OF THOSE OF THE SOUL (B)