An inertial measurement unit works by detecting the current rate of acceleration using one or more accelerometers, and detects changes in rotational attributes like pitch, roll and yaw using one or more gyroscopes. And some also include a magnetometer, mostly to assist calibration against orientation drift.
In the human there are 31 pairs of spinal nerves, one on each side of the vertebral column. These are grouped into the corresponding cervical, thoracic, lumbar, sacral and coccygeal regions of the spine.
The cranial nerves are 12 pairs of nerves that can be seen on the ventral(bottom) surface of the brain. Some of these nerves bringinformation from the sense organs to the brain; other cranial nerves control muscles; other cranial nerves are connected to glands or internal organs (for example, the heart and lung).Here is atable detailing some of the functions of each cranialnerve.culomotor, Trochlear and AbducensNerves. Remember, these 3 nerves control eye movement. Hold up a finger infront of your partner. Tell your partner to hold his or her headstill and to follow your finger, then move your finger up and down, rightand left.