Bio122_Arthropods

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Author:
jgascaco
ID:
199946
Filename:
Bio122_Arthropods
Updated:
2013-02-14 23:17:35
Tags:
Arthropoda Biology Invertebrate Zoology
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Description:
phyllum: anthropoda vocab, processes and the following classes/subphylla: Chelicerata, Arachinata, Mandibulata, Crustacea, Hexapoda
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  1. Arthropoda
    • "joint foot"
    • largest phyllum
    • chitinous exoskeleton
    • jointed apendages
    • segmented appendages
    • tagmosis 
    • compound eye
    • coelom reduction
    • open circ. system
  2. Arthropoda subphylums
    • Trilobita "three lobed"
    • Chelicerata "horn" 
    • Mandipulata "mandibles"
  3. Trilobita
    • "three lobed"
    • extinct
    • marine
    • body divided into a cephalon, thorax, and pygidium
    • compound eye
  4. Chelicerata
    • "horn"
    • 2 tagma: cephalothorax and abdomen
    • no antennas
    • chilicera (1st appendage) after mouth
    • pedipalos (2nd appendage)
    • 4 pairs of thoracic appendages
    • 3 extant classes
  5. Chelicerata classes
    • Arachnida "spider"
    • Merostomata "part mouth"
    • Pycnogonid "gony knee"
  6. Mandibulata
    • "mandibles"
    • argest and most varied arthropod group
    • mandibles (jaws)
    • antennas
    • distinct tagma encased on hardened head capsule
  7. Mandipulata groups
    • Crustacea "crust"
    • Uniramia "unbranched legs" / Tracheata "trachea"
  8. Crustacea
    • "crust" shell
    • aquatic
    • 2p antennas
    • 3 pairs of mouthparts(pair of maxillipeds, maxillae, )
    • 5 pairs of appendages for walking (include swimmerets)
    • 1p compound eyes
    • tagmosis on trunk
    • biramous segmental appendages
    • setae (chitonous hairs)
  9. Tracheata / Uniramia
    • "trachea" / "unirama"
    • terrestrial, few aquatic
    • breath by trachea
    • uniramous = single branching appendage
    • 1p of antennae
    • 2p of mouthparts (single pairs of mandibles and maxillae)
  10. Trachea subclasses
    • Hexapoda "6 legged"/ insecta "insect"
    • Myriopoda "million legs"
  11. Hexapoda
    • "6 legged"
    • terrestrial, some fresh water
    • small size
    • wings
    • metamorphosis
    • 1p antenna
    • 1p mandibles
    • 2p maxilla
    • 2 clades
  12. Myriopoda
    • "million legs"
    • centipedes millipedes ect
  13. Hexapoda classes
    • Apterygota "wingless insect"
    • Pterygota "winged insect"
  14. Apterygota
    • "wingless insects"
    • direct developement
  15. Pterygota
    • "winged insects"
    • can be exopterygotes or endopterygotes
  16. Pterygotes subclasses
    • Exopterygotes "wings out"
    • -hemimetaboulus development
    • -larva similar to adult
    • -external wing buds
    • ex:dragonflie, crickets, termites
    • Endopterygotes "wings in"
    • -holometabolous
    • -larva distinct from adult (pupa)
    • -internal wing bud
    • ex:butterfly, moths, bees, flies
  17. Metameric
    multiple segments
  18. Tagmosis
    fusion of body segments
  19. maxillas
    • hexapoda
    • feathery
    • sweeps food into the mouth
  20. ecdysis
    shedding exoskeleton
  21. exopod
    • crustaceans
    • The external branch of the appendages
  22. serial homology
    regional modification of segmental appendages
  23. branchial chamber
    • crustacea
    • Area between body and carapace enclosing branchiae
  24. acron
    • bears the eyes of the arthropod
  25. nauplis
    larvea form of crustacean
  26. labrum
    • hexapoda
    • upper lip made of exoskeleton
  27. malpighian tubules
    • Terrestrial arthropod
    • takes in gas and nitrogenous wastes
    • released out the anus w/ fecal matter.
  28. metamorphosis
    distinct larval vs. life history stradegies
  29. pedipalps
    • chelicerates
    • appendage that aids in pushing food into mouth
  30. mandibles
    • mandibulata
    • lower jaw
  31. ommatidia
    • Hexapoda
    • compound eyes with multiple units
    • each eye acts as a pixel
  32. apodeme
    • internal projection of exoskeleton
    • site of muscular attachment
    • aids in movement and digestion
  33. endopod vs. uropods
    • endopod - anthropod appendage for walking (uniramium)
    • uropod - posterior appendages for swimming (crustaceans)
  34. cephalothorax
    • fused head and thorax
    • Crustaceans
    • Chelicerates
  35. telson
    • crustacean
    • terminal end of abdomen
  36. labium
    • hexapoda
    • upper lip
    • 2nd maxilla fused and rigid
  37. hemimetabolous vs. holometabolous
    • hexapoda
    • hemimetabolous - larval form is adult form
    • holometabolous - larval form to adult form
  38. book lungs
    • arachnida
    • chambers with leaf-like plates for exchanging gases
  39. hemocoel
    fluid filled cavity in open circ. system
  40. antennas
    sense organs with extreme sensitivity
  41. compound eye
    multiple eyes (each eye acts like a pixel)
  42. chitin
    primary ingredient in exoskeletons in arthropods
  43. cheliped
    pincer-like claw
  44. biramous vs uniramous
    • uniramous:single series of segments attached end-to-end
    • biramous:each branch consists of a series of segments attached end-to-end
  45. zoea
    • larval stage of crustaceans
    • contain all body segments
    • may lack appendages
  46. head capsule
    hardened head shell
  47. tracheal tubes
    • uniramia/treachids
    • branching networks of hollow air conducting tubes such that air is sent to every cell within the tissue
  48. chelicera
    • Chelicerates
    • first pair of modified feeding structures
  49. Autotomy
    • self amputation
    • regenerating lost segments during subsequent molts
  50. setae
    chitinous hairs

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