PHYSIOLOGY
Respiratory System
Oxygen is essential for the survival of the jumping spider. Without Oxygen the Jumping Spider cannot survive. The jumping spider has four respiratory organs which is used to breath. They are all located on the low side of the abdomens, and are categorized into two pairs. These are called anterior pairs and posterior pairs. The anterior pair is located in front of the posterior pair. The lungs of spiders are called book lungs. These lungs contain tiny soft plates that are called llamellae. A llamellae is a thin membrane or scale in bone tissue.[1] The llamellae is key for the diffusion of oxygen into the blood, and it is where it takes place. After this the oxygen goes through the blood stream and to all of the organs. Since oxygen is like fuel, once it is used up it becomes carbon deoxide which is the waste. Carbon dioxide is not needed for spiders so it is exhaled. All organs in spiders are attached and there are small holes between them which allows the oxygen to flow through the spider.[2]
Fun Fact #1: Blood in spiders is stored as hemolymph, which is a compound of blood
Fun Fact #2: Spiders don't have veins, so the small holes between the organs are essential for the transportation of oxygen.
Oxygen has many uses in the Jumping Spider. For the respiratory system, it is used for cellular respiration. Oxygen helps to make sugar and energy and this energy is stored in the form of ATP. Once more energy is needed the ATP bond is broken which releases energy into the cells of the organisms. In that process the ATP becomes ADP. Once more energy is received again ADP will become ATP, ready to break its bonds again when the energy is needed.
[1] http://www.spiderzrule.com/spider9.htm
[2] http://www.explorit.org/science/spider.html
Fun Fact #1: Blood in spiders is stored as hemolymph, which is a compound of blood
Fun Fact #2: Spiders don't have veins, so the small holes between the organs are essential for the transportation of oxygen.
Oxygen has many uses in the Jumping Spider. For the respiratory system, it is used for cellular respiration. Oxygen helps to make sugar and energy and this energy is stored in the form of ATP. Once more energy is needed the ATP bond is broken which releases energy into the cells of the organisms. In that process the ATP becomes ADP. Once more energy is received again ADP will become ATP, ready to break its bonds again when the energy is needed.
[1] http://www.spiderzrule.com/spider9.htm
[2] http://www.explorit.org/science/spider.html
Digestive System
Poison glands are located in front while the intestine is located towards the rear
Most of the digestion in arachnids takes place outside of the body. First venom is injected into the prey, through its fangs. This venom breaks down the flesh, making it soft and moist. The spider then sucks the mushy like substance through its fangs. This goes to the esophagus and to the stomach. Very little mechanical and chemical digestion takes place in the stomach. Then it goes to an intestine which is very small. Here it extracts more nutrients. It then goes out of the anus. [1]
1. http://atshq.org/articles/Digestion.pdf
How the Jumping Spider Digests
1. Ingects Venom into the prey through the fangs
2. They prey starts to liquefy
3. Spider sucks the liquefying prey through the fangs
4. Goes through the esophagus and into the digestive system
5. Stomach performs mechanical/chemical digestion
6. Goes to the intestine to extract nutrients
7. Travels out through the anus
The Jumping Spider's Menu:
1. http://atshq.org/articles/Digestion.pdf
How the Jumping Spider Digests
1. Ingects Venom into the prey through the fangs
2. They prey starts to liquefy
3. Spider sucks the liquefying prey through the fangs
4. Goes through the esophagus and into the digestive system
5. Stomach performs mechanical/chemical digestion
6. Goes to the intestine to extract nutrients
7. Travels out through the anus
The Jumping Spider's Menu: