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.
Feeding will normally take place every two to three hours for puppies and they are unable to eat solid food until they are at least four weeks old. Puppies between four and eight weeks can eat a mixture of dry food and milk and then they can shift to solid food completely after that period. If the mother is not present then it is recommended that you contact a veterinarian for an acceptable substitute for her milk as human milk is not appropriate for puppies.