The neurological system is the bodily system that involves the central nervous system (brain and spinal cord) and the peripheral nervous system (other nerves in the body). All physicians study the fundamentals of the anatomy and functions of the brain and the mental processes. There are areas of medical specialization that focus on that body system in particular. Neurologists diagnose and treat neurological system disorders using medical treatments. They are the experts in the anatomy, physiology, and functions of the nervous system and mental processes. Neurosurgeons perform surgical procedures on the brain as well as other neurological (nerve) procedures. They study the brain and mental processes like neurologists do, as well as the intricate surgeries performed on the nervous system. Pediatric Neurosurgeons surgically treat infants and children with neurological system diseases and disorders as a more narrow subspecialty area of neurosurgery. "Mental Processes" could be expanded to include behavior, thinking, learning, personality, and psychological aspects of the mind as opposed to the brain. Expanding the scope of your question to include this would lead to the addition of Psychiatristsand Psychologists as specialists in the study of the brain, mind, behavior, and mental processes.
The prefix in medical terms that refers to the brain is CEREBRO- such as in cerebrovascular accident (aka CVA, stroke, brain hemorrhage, brain infarct) and as in cerebral.
Cerebro- is from "cerebrum" meaning brain in the language spoken by ancient Romans.
This is often confused with the prefix that means mind, which is PSYCHO-
Psycho- is from the Greek for "soul". Ex: psycho-somatic (characterized as an ailment caused by the mind).
The brain (cerebrum) is the tangible body part that can be seen and operated on, etc., while the mind is the functioning and reasoning human consciousness that originates in the brain. It is non-tangible and "seen" only through thought, perception, emotion, will, memory, and imagination.
Other related and often confused prefixes include:
Ceph- is for head, from the Greek "kephale", head. Ex: cephalic
Cran- is for skull, from the Greek "kranion", skull. Ex: cranial, cranium
Cerebrum
Cerebral
A psychologist is a specialist in psychology, the study of the mind. A psychiatrist is the medical term for a physician who is a specialist in the study of the mind.
The word psychic (psych = mind + ic = pertaining to) as well as phrenic (phreno = mind + ic = pertaining to), mean "pertaining to the mind".
psychology is the study of the mind or more aptly, the study of individual behavior patterns of living things.
Encephalon
Cerebrum
Axillary is the medical term meaning pertaining to the liver.
Chiral or manual is the medical term meaning pertaining to the hand.
Fetal is the medical term meaning pertaining to a fetus.
Sacroiliac is the medical term meaning pertaining to the sacrum and ilium.
sternocostalsternocostalSternocostal
The medical term mean pertaining to the vein is venous.
The medical term for 'pertaining to carbon' would be carbonic.
The medical term meaning pertaining to fibers is "fibrous" or "fibrillar."
Interdental is the medical term meaning pertaining to between the teeth.
Xerostomia is the medical term for a dry mouth.Xerostomia is the medical term for a dry mouth.
Periodontal is the medical term meaning pertaining to around the tooth.
Nasolacrimal is the medical term meaning pertaining to the nose and tear ducts.