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INSECT NERVOUS SYSTEMS AND SENSE ORGANS. Types of Neurons unipolar bipolar multipolar axon.

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Presentation on theme: "INSECT NERVOUS SYSTEMS AND SENSE ORGANS. Types of Neurons unipolar bipolar multipolar axon."— Presentation transcript:

1 INSECT NERVOUS SYSTEMS AND SENSE ORGANS

2 Types of Neurons unipolar bipolar multipolar axon

3 Insect Central Nervous System brainsubesophageal ganglion thoracic ganglia abdominal ganglia

4 Insect Brain protocerebrum hypocerebral ganglion recurrent nerve subesophageal ganglion tritocerebrum deutocerebrum frontal ganglion

5 corpus pedunculatum optic lobe hypocerebral ganglion recurrent nerve subesophageal ganglion frontal ganglion corpora cardiaca corpora allata Insect Brain - Dorsal View ingluvial nerve ingluvial ganglion

6 Stomatogastric Nervous System hypocerebral ganglion recurrent nerve frontal ganglion ingluvial nerve ingluvial ganglion

7 Sensory Organs - Mechanoreceptors seta (hair) epithelium trichogen cell tormogen cell membrane bipolar neuron HAIR SENSILLUM (TRICHOID SENSILLUM)

8

9 Sensory Organs - Mechanoreceptors coeloconic ampullaceous campaniform placoid

10 Sensory Organs - Mechanoreceptors Chordotonal organs scolopale neuron scolopidium

11 Johnston’s Organ

12

13 Chemoreceptors Thin-walledThick-walled

14 Chemoreceptors Thin-walled coeloconic plate basiconic

15 Insect Eyes

16 lens crystalline cone Semper’s cell primary pigment cell secondary pigment cell retinular cell rhabdom axons to CNS basement membrane Insect Eye

17 Two kinds of Eye

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