Ventricular tachycardia. Ventricular tachycardia (V-tach or VT) is a type of regular and fast heart rate that arises from improper electrical activity in the ventricles of the heart. Although a few seconds may not result in problems, longer periods are dangerous. Short periods may occur without symptoms or present with lightheadedness, palpitations, or chest pain.
The midbrain tegmentum contains thousands of neurons that are responsible for a variety of many functions, two of which include the control of movement and sensory systems. See also
The most anterior parts of a fishâs brain are the olfactory bulbs. These are connected to the two lobes of the cerebrum by stalks. In fish the cerebrum is primarily involved with the sense of smell.It also seems to control behaviors such as taking care of the young and exploring the environment.The optic lobes process information from the eyes.hese are connected to the two lobes of the cerebrum by stalks. In fish the cerebrum is primarily involved with the sense of smell. It also seems to control behaviors such as taking care of the young and exploring the environment. The optic lobes process information from the eyes.