The nervous system is made up of the central nervous system and the peripheral nervous system: The brain and the spinal cord are the central nervous system.
Does the nervous system include the brain?
The brain and spinal cord make up the central nervous system. Nerves everywhere else in the body are part of the peripheral nervous system.
How many brains does the nervous system have?
Your cranial nerves are pairs of nerves that connect your brain to different parts of your head, neck, and trunk. There are 12 of them, each named for their function or structure.
What does the nervous system carry to the brain?
Sensory neurons transmit nerve impulses from sense organs (eyes, ears, nose, tongue and touch) to the brain. They also carry nerve impulses to the brain and spinal cord. Motor neurons transmit nerve impulses from the brain and spinal cord to a specific area of the body.
Which organ is part of our nervous system?
The brain and the spinal cord are the central nervous system. The nerves that go through the whole body make up the peripheral nervous system.
What is the main function of nervous system?
The nervous system is the major controlling, regulatory, and communicating system in the body. It is the center of all mental activity including thought, learning, and memory. Together with the endocrine system, the nervous system is responsible for regulating and maintaining homeostasis.
What is nervous system disorder?
Brain and nervous system problems are common. These neurological disorders include multiple sclerosis, Alzheimer’s disease, Parkinson’s disease, epilepsy, and stroke, and can affect memory and ability to perform daily activities.
What is the longest cranial nerve in human body?
The fourth cranial nerve (trochlear nerve) has the longest intracranial course; it is the only cranial nerve that has a dorsal exit from the brainstem (figure 1). It begins in the midbrain at the level of the inferior colliculus as fascicles extending from the fourth nerve nuclei.
What is the cause of nervous system disorders?
Some serious conditions, diseases, and injuries that can cause nervous system problems include: Blood supply problems (vascular disorders). Injuries (trauma), especially injuries to the head and spinal cord. Problems that are present at birth (congenital).