primary, secondary, tertiary bronchi {Ans: primary bronchi results from the bifurcation of the trachea, secondary bronchi are called lobar, tertiary bronchi are called segmental}anatomical limit {Ans: The point of origin and the point of termination in relation to adjacent structures define}filum terminale {Ans: the non-nervous fibrous tissue of the spinal cord}Systole {Ans: the contraction phase of the cardiac cycle}Isthmus {Ans: the narrow, thick portion of the uterine tube}2 ureteral openings and 1 internal urethral opening {Ans: Know openings in urinary bladder}