Integumentary system

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Integumentary system

  1. 1. Integumentary SystemJanice V. Ng, MSc2nd SEM 2012-2013
  2. 2.  Protection Regulatory function Sensation Excretion Respiration
  3. 3.  Invertebrates Unicellular Protozoans Multicellular - epidermis Phylum Porifera Phylum Cnidaria Phylum Platyhelminthes Phylum Nematoda Phylum Annelida Phylum Arthropoda Phylum Echinodermata Vertebrates Multicellular Phylum Chordata Class Amphibia Class Mammalia
  4. 4. Protozoan Amoeba Cell membrane Paramecium Cell membrane Pellicle
  5. 5. Phylum Porifera Epidermis = Pinacoderm pinacocytes Choanocytes Mesoglea (mesohyl)Grantia
  6. 6. Phylum Cnidaria Epidermis Cnidocytes Cnidocysts/nematocysts Mesoglea GastrodermisHydra
  7. 7. Phylum Platyhelminthes (flatworm) Class Turbellaria Class Monogenea ClassTrematoda (flukes) Class Cestoda (tapeworms)
  8. 8. Class Turbellaria Ventrally ciliated epidermis Rhabdites Gland cellsDugesia/ Planaria
  9. 9. Class Trematoda Epidermis  syncytial tegumentFasciola
  10. 10. Phylum Nematoda (roundworm) Cuticle Epidermis/Hypodermis syncytial Muscle layer Longitudinal musclesAscaris
  11. 11. Phylum Annelida (segmented worm) Cuticle Epidermis Muscle layers Circular LongitudinalLumbricus
  12. 12. Phylum Arthropoda Cuticle (chitinized) Epidermis Molting/Ecdysis
  13. 13. Phylum Echinodermata Epidermis Spines Dermis with ossiclesStarfish (arm)
  14. 14. Class Amphibia Stratified epidermis Stratum corneum - contains keratin Stratum germinativum/mucosum/profundum/malphigii Glands: (extending into dermis) Mucous and Poisonglands Chromatophore Dermis - fibrous CT Stratum spongiosum Stratum compactum Subcutaneous layerFrog
  15. 15. Class Mammalia Stratified Epidermis Glands: (extending intodermis) Sweat andSebaceous glands Dermis Hypodermis (superficialfascia)L.S of human skin/scalpC.S of human scalp

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