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.
I believe my pup was 9 months when he got my female pregnant. I'm guessing he could've gotten her pregnant before that if she had been in heat. Also you will need to know that for about a week after the female stops bleeding, she can and probably will get pregnant if she's with a male at that time. So if you're not trying to have pups, be careful! better to be safe than sorry.