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.
Visit the Vet. It's unusual for puppies to arrive earlier than 61 days after being bred, so you can pinpoint when the litter is due. Make an appointment with your veterinarian the week before your mother dog's first due date for an ultrasound or X-ray.This will show how many puppies your dog is carrying and allow you to be prepared when whelping begins.isit the Vet. It's unusual for puppies to arrive earlier than 61 days after being bred, so you can pinpoint when the litter is due. Make an appointment with your veterinarian the week before your mother dog's first due date for an ultrasound or X-ray.