As the clitoris is homologous to the penis, it is the equivalent in its capacity to receive sexual stimulation. One misconception, particularly in older research publications, is that the vagina is completely insensitive. However, there are areas in the anterior vaginal wall and between the top junction of the labia minora and the urethra that are especially sensitive. With regard to specific density of nerve endings, while the area commonly described as the G-spot may produce an orgasm, and the urethral sponge, an area in which the G-spot may be found, runs along the "roof" of the vagina and can create pleasurable sensations when stimulated, intense sexual pleasure (including orgasm) from vaginal stimulation is occasional or otherwise absent because the vagina has significantly fewer nerve endings than the clitoris. The greatest concentration of vaginal nerve endings are at the lower third (near the entrance) of the vagina.Sex educator Rebecca Chalker states that only one part of the clitoris, the urethral sponge, is in contact with the penis, fingers, or a dildo in the vagina. Hite and Chalker state that the tip of the clitoris and the inner lips, which are also very sensitive, are not receiving direct stimulation during penetrative intercourse. Because of this, some couples may engage in the woman on top position or the coital alignment technique to maximize clitoral stimulation.
Ulnar tunnel syndrome
Ulnar nerve impingement along an anatomical space in the wrist called the ulnar canal is known as ulnar tunnel syndrome. Recognized causes of ulnar nerve impingement at this location include local trauma, fractures, ganglion cysts, and classically avid cyclists who experience repetitive trauma against bicycle handlebars. This form of ulnar neuropathy comprises two work-related syndromes: so-called "hypothenar hammer syndrome," seen in workers who repetitively use a hammer, and "occupational neuritis" due to hard, repetitive compression against a desk surface. Prevention
Cubital tunnel syndrome may be prevented or reduced by maintaining good posture and proper use of the elbow and arms, such as wearing an arm splint while sleeping to maintain the arm is in a straight position instead of keeping the elbow tightly bent. A recent example of this is popularization of the concept of cell phone elbow and game hand. Treatment
The most effective treatment for cubital tunnel syndrome is surgical decompression. The most safe and effective operation is in-situ decompression +/- medial epicondylectomy.For pain symptoms, medications such as NSAID, amitriptyline, or vitamin B6 supplementation may help although there is no evidence to support this claim.Mild symptoms may first be treated non-operatively, with the following:
Elbow joint immobilization in extension at night +/- during the day
Neural flossing/gliding exercises
Strengthening/stretching exercises
Activity modification (e.g. avoidance of pressure on the elbows)It is important to identify positions and activities that aggravate symptoms and to find ways to avoid them.