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Clock Spider






Spider Internal Anatomy covers following parts of body.The anatomy of spider with shown picture is so much clear that we can understand everything so much easily.The parts of spider internal body are listed below :

  1. Brain
  2. Sucking stomach
  3. Arota
  4. Intestine
  5. Heart
  6. Digestive
  7. Ovary
  8. Malpighian tubule
  9. Stercoral pocket
  10. Anus
  11. Spinneret
  12. Silk gland
  13. Oviduct
  14. Sperm receptacle
  15. Book lung
  16. Digestive cecum
  17. Fang
  18. Esophagus
  19. Venom canal
  20. Venom gland
  21. Simple eye

Spiders of any kind consist of above mentioned parts of body.Their venom canal and venom gland are poisonous parts of their body.

Breathing structure in spiders


Spiders breathing structure based on tracheae or book lungs as spiders have grown or developed different breathing or respiratory structure.Some species of spiders like Mygalomorph and Mesothele have 2 pairs of book lungs filled with haemolymph where in the beginning of ventral surface of spider abdomen allow air which diffuses into oxygen and diffuses out into carbon dioxide.

Very few species of spiders develop tracheae or more of them have book lungs.Very astonishing fact,some species of spiders have no breathing system as air exchange is done directly from surface to body .These type of spiders can be found in moist areas.

Related : What is clock spider meme

Reproductive system in spiders

Palpal bulbs play their role in spiders reproduction .It is strange fact that spiders do not transform their energy through their penis .palpal bulb size vary according to their physical conditions.They drop drops of semen which is taken into palpal bulb.

Related : How to identify spiders species

Spiders bite | Spider venom | Spider venom glands


Arachnidism is biological term used for spider bite carried from spider venomous canal and venom glands.Some spiders bite consist less venom,some consist no harmful venom and some spiders like widow spiders bite consist very poisonous and deadly venom in their bite.Latrodectism is mostly happens when spider bites and neurotoxic venom is produced by widow spider.

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