VISIT WEBSITE >>>>> http://gg.gg/y83ws?2417621 <<<<<<
The ray doesn't have direct control over the sting mechanism, only over the tail. In most cases, when the sting enters a person's body, the pressure causes the protective sheath to tear. When the sheath tears, the sharp, serrated edges of the spine sink in and venom flows into the wound. It's composed of the enzymes 5-nucleotidase and phosphodiesterase and the neurotransmitter serotonin. Serotonin causes smooth muscle to severely contract, and it is this component that makes the venom so painful.
The enzymes cause tissue and cell death. If the venom is introduced into an area like the ankle, it can usually be treated. Heat breaks down stingray venom and limits the amount of damage it can do.
If not treated quickly enough, amputation might be necessary. But if the venom enters the abdomen or chest cavity, the resulting tissue death can be fatal because of the major organs located in the vicinity. If the spike enters the heart , as is reported to be the case in Steve Irwin's accident, the results are typically fatal.
While a stingray's venom can do serious damage, the most destructive part of the sting mechanism can actually be the barbs on the spine. The sharp tip of the sting enters a person pretty smoothly, but its exit is roughly equivalent to backing up over those "severe tire damage" blades.
Remember that the points of the barbs are facing the stingray. Even if venom weren't involved at all, pulling the spike out of a human's chest or abdomen could be enough to cause death from the massive tearing of tissue that results. Sign up for our Newsletter! Mobile Newsletter banner close. Mobile Newsletter chat close. Mobile Newsletter chat dots. A more in depth explanation of muscle contraction can be explained here.
Serotonin found in the human body is derived from the amino acid tryptophan. The synthesis of serotonin requires the enzyme tryptophan hydroxylase with oxygen, iron and THB as co-factors.
Because neither the enzyme nor the co-factors are rate-limiting for the reaction, virtually all tryptophan is converted to serotonin. Serotonin in the cardiovascular system will cause smooth muscle contractions when it binds to the 5-HT2 receptor. When serotonin is present in the nervous system it can bind to 5-HT3 receptors that stimulate the pain sensory nerve endings and also induces bradycardia which is when the heart beats at a slower rate.
After being stung by a stingray, there are many steps that one must do right away to prevent a possible severe injury. To treat a stingray injury or sting, one must first bathe the wound in seawater to remove fragments of spine and tissue. After exiting the water, one must apply pressure above the wound if it is bleeding. After that, one should soak the wound in hot water until the bleeding stops. The hot water inactivates any remaining venom and may also relieve the pain.
While soaking the wound with hot water, one should gently remove obvious pieces of spine, however, you should not remove pieces of spine from the neck, chest, or abdomen. September 12, at pm.
Rochelle says:. October 7, at am. May 13, at pm. Lauren says:. December 17, at am. June 14, at am. The Stingray Hunter says:. February 17, at am. April 16, at pm. Lisa says:. November 13, at pm. Tony Dawso says:. December 1, at am. Verna says:. December 9, at am. Steve irwin says:. March 10, at pm. May 28, at pm. Robert Goldman says:.
January 25, at pm. January 27, at pm. Allen McKinney says:. February 12, at pm. Caitlin says:. February 22, at am. Abu says:.
April 8, at am. Juliana Wight says:. April 18, at pm. June 8, at am. June 14, at pm. Rick says:. March 24, at pm. Scott varner says:. June 16, at am. Angie says:. September 25, at am. Doc croc says:. May 21, at am. Killer Croc fictional supervillain says:.
Peter Downes says:. Howard says:. June 18, at pm. Rebecca Harp says:. June 19, at pm. John C Rogers says:. June 26, at pm.
Kommentarer