Non jointed and jointed appendages
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This document discusses different types of appendages used for locomotion in animals. It describes non-jointed appendages such as parapodia in polychaetes that also aid respiration and defense. Gastropods use muscular pedal feet and mucus to move. Cephalopods use tentacles and fins with suckers. Echinoderms use tubefeet connected to their water vascular system. Onychophora use lobopods. Jointed appendages are also discussed but not described. The document provides examples of non-jointed appendages and their functions in different animal phyla.
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Non jointed and jointed appendages
- 1. Non-jointed and Jointed appendages Dr. DEEPAK RAWAL Assistant Professor Department of Zoology MLSU Udaipur
- 2. Locomotion •Sessile/sedentary •Free living without appendages •Appendages/extremities: structure extend beyond body wall •Free living with appendages Non-jointed appendages Jointed appendages
- 3. Non-jointed appendages •1. Parapodia eg.- Polychaeta •They also helps in respiration and defense.
- 4. Non-jointed appendages •2. Pedal/muscular foot eg.- Gastropoda •They make their own road by mucus
- 5. Non-jointed appendages •3. Tentacles eg.- Cephalopoda •Fins and suckers also help in locomotion.
- 6. Non-jointed appendages •4. Tubefeet: eg.- Echinodermata •Also helps in respiration •Also act like suckers and are connected to water vascular system
- 7. Non-jointed appendages •5. Lobopods: eg.- Onychophora