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.
Best Answer: 8 weeks at least. Puppies need time to play with their litter mates this helps them out in the long run with biting, and agressivness. and I would say ask $100 to ensure a loving home. and ALWAYS meet with the people, once or twice before hand.