The medulla oblongata is part of the nervous system in the lower  half of the brainstem in which connects the brain and spinal cord.  It is subconscious and it controls the â¦ involuntary action such as  breathing, blood pressure and even heartbeat. Answered.he lower portion of the brainstem (brainstem includes the middle brain, pons, and medulla oblongata), which controls visceral functions of the body, such as heart rate, breathing/respiration, and blood pressure.
Once the breeding is done, there s nothing to do but wait. Pregnancy lasts 61-64 days; puppies can be detected by x-ray or ultrasound about halfway through. There are some telltale signs increased appetite, weight gain, nipple enlargement but they could apply to a false pregnancy as well as the real thing.
When puppies stay with their mother and littermates for a minimum of between 8 and 10 weeks, they have sufficient time to develop a strong foundation of social skills.In regular playing with their siblings, puppies receive an important education on life in the canine real world..t is important for puppies to stay with their mothers at least until they are all through with weaning. However, in certain situations, that may not be realistic -- such as in the event of the mother dog's illness.