Cranial nerve , in vertebrates, any of the paired nerves of the peripheral nervous system that connect the muscles and sense organs of the head and thoracic region directly to the brain. Lower vertebrates fishes, amphibians have 10 pairs. A 13th pair, a plexus branching network known as the terminal nerve CN 0 , is sometimes also recognized in humans, though whether it is a vestigial structure or a functioning nerve is unclear. Cranial nerves are made up of motor neurons , sensory neurons, or both. They are named for their function or structure; for example, the trigeminal nerve consists of three primary branches, while the vestibulocochlear nerve serves the organs of equilibrium and hearing.
The Names, Functions, and Locations of Cranial Nerves
Cranial Nerves | Boundless Anatomy and Physiology
The cranial nerves are 12 pairs of nerves that can be seen on the ventral bottom surface of the brain. Some of these nerves bring information from the sense organs to the brain; other cranial nerves control muscles; other cranial nerves are connected to glands or internal organs such as the heart and lungs. Can't remember the names of the cranial nerves? The bold letters stand for: olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, vestibulocochlear, glossopharyngeal, vagus, spinal accessory, hypoglossal. Still can't remember the cranial nerves? Perhaps you need some Cranial Nerve Bookmarks to help you study! After you print the bookmarks, cut them into three individual bookmarks and use them to mark your place when you study.
The cranial nerves are the 12 pairs of nerves that leave the brain via their own individual apertures in the skull. More information about the names, numbers and functions of the 12 cranial nerves is summarized in the following table. Number and Name. Vision, also called eyesight.
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. This is based off their location from front to back. Their functions are usually categorized as being either sensory or motor.