Ventricular tachycardia can be difficult to differentiate from other causes of broad complex tachycardia. The following characteristics aid in the identification of VT.Features common to any broad complex tachycardia. Rapid heart rate (> 100 bpm). Broad QRS complexes (> 120 ms).
Eyeshine is a visible effect of the tapetum lucidum. When light shines into the eye of an animal having a tapetum lucidum, the pupil appears to glow. Eyeshine can be seen in many animals, in nature and in flash photographs.his classification does not include tapeta lucida in birds. Kiwis, stone-curlews, the boat-billed heron, the flightless kakapo and many nightjars, owls, and other night birds such as the swallow-tailed gull also possess a tapetum lucidum.
the mesentery is the thin membrane that helps to hold the small intestine in place. There are a large number of blood vessels in the mesentery, which nourish the small intesti â¦ ne with their blood supply.lthough we generally think of rats as scurrying around on the floor or in a lab cage, in nature they are rather nimble creatures. A rat is able to use its tail to provide balance when climbing branches, ropes, chains, etc. This function serves the same purpose as the tail of a cat or kangaroo.