Tag: evs

Ventricular diastole is the relaxation phase of the heart muscle. Since the heart is composed of cardiac muscle tissue, the activity of this tissue governs the relaxation process.

The cerebral aqueduct, or Iter, is a narrow channel that connects the third ventricle to the fourth ventricle in the brain, allowing cerebrospinal fluid to flow between them.

In a healthy individual, there are two normal heart sounds called lub and dub. Lub is the first heart sound. It is associated with the closure of the tricuspid and bicuspid valves at the beginning of systole. The second heart sound dub is associated with the closure of the semilunar valves at the beginning of diastole.

Human blood passes from the inferior vena cava into the diastolic right atrium of the heart because of a pressure differential between the atrium and the vena cava. This negative pressure gradient is created by atrial diastole and pulls blood to the atrium which is then pumped to the ventricles by contraction.

Due to one complete cardiac cycle, the two atria contract during the first 0.1 seconds, followed by ventricular systole for 0.3 seconds and finally joint diastole for 0.4 seconds. 

Fangs are modified teeth present in the upper jaw. They store and inject the venom when the snake bites.

Snakes have vomeronasal organs on the top of their mouths that recognise smells and tongue helps them do so.

Python and Cobra can range about several meters in length.

Poison of snake is known as venom it is secreted by glands that produce saliva and stored in fangs. It helps the snake in hunting and protecting itself.

Snakes release venom that is stored in fangs. These are modified teeth that inject the venom into the prey or the predator to most of the times to kill it.