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.
Bring all dogs into the house, spay and neuter. Give or sell the puppies with spay/neuter contracts, as well as a return contract if they can't keep the puppy or dog, no matter what age it is. You are really supposed to wait till they are 8 weeks old, but as long as they are eating regular puppy food they will be fine. 8-12 weeks... 6 weeks is fine as long as they are eating dog food and drinking water consistently.