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 scientists also found that memories evoked by odors were linked to more brain activity in areas associated with visual vividness. Unfortunately, smells can also be potent triggers of negative emotions, particularly in individuals with posttraumatic stress disorder (PTSD).