Rotation is the movement which we use to look over our shoulder or look back. The movement is equal on either side. Normal range of motion of cervical spine is. 1  Flexion â 80 to 90 degrees. 2  Extension â 70 degrees.3  Lateral flexion â 20 to 45 degrees on both sides. 4  Rotation â 90Â° of rotation to both sides.otation is the movement which we use to look over our shoulder or look back. The movement is equal on either side. Normal range of motion of cervical spine is. 1  Flexion â 80 to 90 degrees. 2  Extension â 70 degrees.
Black Rat Snake Information & Facts. Black Rat Snake Biology: In general, black rat snakes are a medium-sized snake. Their average length is between 40 to 70 inches. The widest point of the snakeâs body is usually near the tail section and the snake has an average diameter of around two inches. This length and width makes black rat snakes have a powerful and sleek body that is able to move fluidly horizontally on the ground, as well as vertically in trees.
How Fast Do Black Rat Snakes Grow? Black rat snakes are about 1 foot long as hatchlings and about 4 to 6 feet long as adults. Black rat snakes exhibit color patterns and behaviors that change over the courses of their lives. Observing these changes is one enjoyable aspect of keeping black rat snakes as pets.