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.
Answers. 1  It is best that the puppies are already weaned and are eating hard food before giving them away though it is possible to do so earlier, it is more work for the person getting the puppy. Usually this is around 8 weeks old. Puppies should be on milk until around 6-7 weeks old when weaning should start. If they are drinking from the mother, you can start weaning by leaving puppy food out that has been moistened with some warm puppy milk supplement, warm water, or warm chicken broth to make it easier for them to eat.