Long reflexes
somatic
digestive system
Yes, a cow's digestive system involves chemistry. The digestive processes of all animals involve some type of chemical digestion.
I'm assuming this question regards short and long reflexes involved with the gastrointestinal system. Long reflexes to the GIT involve a sensory neuron that sends an impulse to the brain where it is integrated and another impulse is sent to the digestive system. The stimulus may come from the GIT or another area such as salivary glands or the pancreas and liver and may travel along the vagus, pelvic or sympathetic nerves. Short reflexes occur when only the enteric nervous system receives, integrates and acts upon the stimulus. An example is can be seen when sensory cells are stimulated in the wall of the GIT. These cells then send signals to the nerve plexuses in the GIT. Hope that helps :)
The two functional classifications of reflexes are autonomic reflexes, which regulate activities of smooth muscle, cardiac muscle, and glands, and somatic reflexes, which involve skeletal muscles. Autonomic reflexes are involuntary and controlled by the autonomic nervous system, while somatic reflexes are voluntary and controlled by the somatic nervous system.
Digestive organs working together is called the digestive system.
Skeletal muscles, which are effectors, are involved in somatic reflexes. Somatic reflexes involve voluntary control of skeletal muscles and are part of the somatic nervous system. Autonomic reflexes, on the other hand, involve the control of smooth muscle, cardiac muscle, and glands, and are part of the autonomic nervous system.
Fight or flight response.
I believe a short reflex is when one is partially aroused, as during a bumpy car ride or Kate Winslet's nude scene in Titanic. A long reflex is when the member becomes fully hugified, as during any Paul Walker movie.
A digestive system with only one opening is called an incomplete digestive tract. Organisms with this type of digestive system ingest food and eject waste through their mouth.
The digestive system.
Autonomic reflexes concerning digestive, smooth muscle, respiration all have to do with the Peripheral Nervous System (ANS, SNS, and ENS). <-- look it up if you dont know what that is. But the CNS is only the brain and the spinal cord... and there arent any autonomic reflexes there.