What are parts of jellyfish?

Jellyfish are fascinating creatures with a surprisingly complex structure, considering their simple appearance. Here are the main parts of a jellyfish:

1. Bell (or Umbrella): This is the most recognizable part of a jellyfish, forming the dome-shaped structure. The bell houses the jellyfish's digestive system, reproductive organs, and nervous system.

2. Tentacles: These long, trailing appendages extend from the edge of the bell. Tentacles are covered in stinging cells called nematocysts, which help jellyfish capture prey and defend themselves.

3. Manubrium: A stalk-like structure hanging from the center of the bell's underside. The mouth is located at the end of the manubrium.

4. Mouth: The opening where food enters and waste exits. The mouth leads to a central cavity called the gastrovascular cavity, where digestion occurs.

5. Gonads: Reproductive organs located in the bell, responsible for producing eggs or sperm.

6. Nerve Net: A simple nervous system that helps the jellyfish sense its surroundings and coordinate movement.

7. Mesoglea: A jelly-like substance that fills the bell and provides structure and support.

8. Radial Canals: Channels that branch out from the gastrovascular cavity, helping to distribute nutrients and oxygen throughout the body.

9. Oral Arms: Short, branched appendages near the mouth that help to direct food toward the mouth.

10. Statocysts: Sensory organs that help the jellyfish maintain balance and orientation.

11. Rhopalia: Sensory structures located on the edge of the bell, containing statocysts, ocelli (simple eyes), and other sensory receptors.

It's important to remember that jellyfish have no bones, no brain, and no blood. They rely on their simple but effective body structure to survive in the ocean.