Cerebral blood flow (CBF) is the blood supply to the brain in a given period of time.In an adult, CBF is typically 750 millilitres per minute or 15% of the cardiac output.This equates to an average perfusion of 50 to 54 millilitres of blood per 100 grams of brain tissue per minute. CBF is tightly regulated to meet the brain's metabolic demands.oo little blood flow (ischemia) results if blood flow to the brain is below 18 to 20 ml per 100 g per minute, and tissue death occurs if flow dips below 8 to 10 ml per 100 g per minute.
Ears back often means the dog is being submissive or even a little fearful. The situation you describe sounds like a dog that is trying to appease you. You are a little scary to her. Try approaching her sideways, in a crouched position rather than hovering over her.
Quick Answer. When a dog carries its tail between its legs, it means the dog is feeling nervous, venerable, shameful or submissive. Dogs also put their tails between their legs when they are feeling frightened. It generally signifies that something is wrong, and it is a position that the dog takes around a dominant person or animal. Keep Learning.