Once the tongue makes contact with a prey, the prey gets attached to the sticky tongue like glue. The chameleon then withdraws its tongue, with the prey firmly attached into its mouth. The chameleon's sticky tongue is capable of gripping anything – sometimes even lassoing lizards nearly the same size as itself.
The tongue latches itself on to its victims with suction. The muscles beneath the tip of a chameleon’s tongue, forms a flat pad at rest, but turns into a conical depression when in flight acting like a suction cup.
The heart has an intrinsic conduction system that causes electrical activity in the heart muscles causing them to contract. The intrinsic conduction system is made up specialized cells, that contain nerve and muscular characteristics.
The muscle cells in the heart are linked together by gap junctions, allowing cardiac action potentials to travel from one muscle cell to another.
Atrioventricular (AV) node. The damage to the AV node causes the electrical signals traveling from the upper chambers to the lower chambers to be impaired causing an AV block.
