Differences in head movement available to fish, amphibians, reptiles/birds, and mammals
Match each of the following vertebra articulation types to description. Each name may be used more than once or not at all. Some descriptions need more than one type. ( Acoelus, Aphicoelus, Heterocoelus, Opisthocoelus, Proceolus) 1) .....Allows limited motion in most directions. 2)......Allows vertical and lateral movement, but resists rotation 3) .....Centra are concave on both ends. 4).......Centra have concave anterior and convex posterior. 5).......Centra have convex anterior and convex posterior. 6) ......Centra relatively flat on both ends. 7)......Centra are saddle shaped 8)....Withstands and distributes compression. 9) Describe the differences in head movement available to fish, amphibians, reptiles/birds, and mammmals