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 striatum is a subcortical part of the brain consisting of the caudate nucleus and the putamen. It is part of the basal ganglia. The striatum is best known for its role in the planning and modulation of movement pathways but is also involved in a variety of other cognitive processes involving executive function. number of other brain areas and circuits are also related to reward, including the nucleus accumbens and other frontal areas. The main efferent target of the striatum is the globus pallidus, which is primarily inhibited by GABAergic synapses from the striatum. The main afferent region to the striatum is neocortex.