Weight capacity is the determining factor when choosing what gauge steel shelving to. use for your records storage. If lighter-gauge steel shelving provides the necessary. weight capacity for your records, you may choose to purchase it.
The amount of blood in the penis increases sixfold during an erection. The blood filling the corpora cavernosa compresses and then closes off the openings to the veins that normally drain blood away from the penis (see Figure 4). In essence, the blood becomes trapped, maintaining the erection.
As the arteries relax, the tissues swell with blood, causing an erection. Chemical signals from the brain cause arteries in the penis to widen, allowing more blood to enter the erectile bodies known as the corpora cavernosa. These tissues swell with blood, causing an erection.