An example of a pivot joint is the joint between the atlas and axis (C1 & C2) vertebrae, the rotation around each other allows our heads to âpivotâ left and right. 5. Ball and socket joints: This type of joint allows side to side, back and forth, and rotational movement.
At low bladder volumes, afferent firing is low, resulting in excitation of the outlet (the sphincter and urethra), and relaxation of the bladder. At high bladder volumes, afferent firing increases, causing a conscious sensation of urinary urge.
The first US patent for a polyethylene plastic portable restroom was issued in the 1950s to Harvey Heather who was the founder of JW Enterprises and was called the strong box - a solid, molded, stand alone chemical toilet.