Nervous system Respiratory system Digestive system Excretory system Circulatory system

1. Grasshopper Systems
Muhammad Rehan
ForesterRehanUOS@yahoo.com
+923469792050
Institute of agriculture sciences and FORESTRY
University Of Swat

2. SYSTEMS OF GRASSHOPPER
1. Nervous system
2. Respiratory system
3. Digestive system
4. Excretory system
5. Circulatory system

3. CIRCULATORY SYSTEM OF GROSSHOPPER
• Grasshopper has an open circulatory system.
• The blood starts at the hemolymph, travels through large blood
vessels, to the coelem, to the abdomen, and the heart in an open
loop.
• The hemolymph contains chambers called sinuses which is
similar to the heart of humans .
• Their blood transfers food and waste but not oxygen or carbon
dioxide thus it green in color.
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4. • Along the dorsal surface of the grasshopper is the aorta and a
tubular heart as well as a large pericardial sinus and a large
sternal sinus.
• Contractions of the heart pump the blood through the aorta to
the head.

5. Respiratory System Of Grasshopper
• Respiration Does not depend on the circulatory system.
• Air is carried directly to cells by the tracheal tubes.
• Air enters and leaves through 10 pairs of openings called
spiracles.
• The tracheal tubes branch out into smaller tubes. These tubes
have fluid filled ends that connect to the cells. This is where the
actual respiration takes place.
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6. • Oxygen diffuses from the tubes into the cells, carbon dioxide
from the cells enters the tubes.
• Oxygen is pumped through the tracheal tubes by muscle
contraction.

7. Digestive system Of Grasshopper
• The grasshopper has a tubular digestive system.
• Food enters the mouth and is mechanically broken down,
and then mixed with saliva by salivary glands.
• After the chewing it goes to the salivary glands, to the
esophagus, to the crop, to the gizzard, to the mid gut, to
the gastric ceca, to the hind gut and then finally out the
anus.
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8. • In the salivary glands food is mixed with saliva and transported
from the esophagus to the crop where the food starts to grind.
• Then the chemical digestion takes place in the stomach and the
gastric ceca digests bacteria.
• The mid gut and hind gut work to absorb the useful productes.

9. Nervous System Of Grasshopper
• Grasshoppers are invertebrates without a backbone but they do
have a brain.
• Grasshopper eyes are compound and are more effective.
• On their head they have antennae that feel and sense things.
• The grasshoppers central nervous system contains their brain
and ventral nerve chord, but the nerves connect to their eyes
and antennae.
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10. • Grasshoppers also have taste organs and are sensitive to sound
like our tongue and ears.

11. Excretory System Of Grasshopper
• Excretory organs are malpighian tubules.
• They have open circulatory systems so the excretory organs are
bathed directly by the blood.
• Waste from celomic fluid enters the tubules by diffusion.
• Then the waste passes into the intestine.
• Water and other nutrients are reabsorbed both in the tubules
and the intestine.
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12. • These are returned to body fluids.
• Dry waste is called uric acid and is passed from the body,
along with feces, through the anus.

13. The End