Answer:
The PQ interval (PR interval) represents the time for conduction from the SA node across the AV node and His-Purkinje system. Normal values for the PQ interval in horses vary considerably because of high resting parasympathetic tone.
The cycle of violence is a model developed to explain the complexity and co-existence of abuse with loving behaviors. It helps those who have never experienced domestic violence understand that breaking the cycle of violence is much more complicated than just “getting out” or leaving.
There are three phases in the cycle of violence: (1) Tension-Building Phase, (2) Acute or Crisis Phase, and (3) Calm or Honeymoon Phase. Without intervention, the frequency and severity of the abuse tends to increase over time.
I hope this helps. :)
