TechV- Serpentines (A&P).txt

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Author:
heather.dundas
ID:
225697
Filename:
TechV- Serpentines (A&P).txt
Updated:
2013-07-02 18:05:56
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vti
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vti
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  1. snakes have simple, ___ curved teeth
    caudally
  2. what is the normal # of rows a teeth a snake has? (not counting fangs)
    • four rows on top
    • two tows on bottom
  3. only ___ snakes have fangs
    poisonous
  4. the two halves of the mandible are held together by a ___ hinge
    intramandibular
  5. ___ bone is elongated and mobile
    allows them to "gape"
    quadrate
  6. snakes have 3 methods of killing
    CVS
    • constriction
    • venom
    • swallowing hole
  7. snakes have ___ different salivary organs
    5
  8. when snakes lose a tooth, it ___ grow back
    does
  9. what organ gives snakes the vomeronasal sense?
    jacobsons organ
  10. what 2 things does the jacobsons organ play a major role in?
    • predation
    • behavior
  11. snakes have ____ on the forked tongue, and they carry the scent to the ___ organ and they are transferred to the olfactory bulb
    • chemoreceptors
    • jacobsons
  12. what are the 6 methods of movement a snake can use?
    LSCSSR
    • lateral undulation
    • slide pushing
    • concertina
    • sidewinding
    • saltation
    • rectilinear motion
  13. what is the most common method of movement?
    what is it aka?
    • lat. undulation
    • serpentine undulation
  14. what 3 things are combined to create lat. undulation?
    CWF
    • contraction of muscles
    • weight distribution
    • friction
  15. which method of movement is a scrunching and straightening motion?
    concertina locomotion
  16. which method of movement requires little energy and is used in sand and mud
    sidewinding
  17. which method of movement requires a large amount of energy and is aka jumping and striking
    saltation
  18. which method of movement a caterpillar movement- the skin pulls the snake, they move in a straight line like this.
    rectilinear motion
  19. snakes have a ___ chambered heart
    3
  20. their heart can ___ so that it can still work efficiently for when they are eating large prey
    move
  21. a terrestrial snakes heart is located ___ ___ ___ ___
    closer to their head
  22. an aquatic snakes heart is located ___ ___ ___
    in their middle
  23. the RPS means that we should use their ___ half to give injections
    cranial
  24. which lung is the functional one?
    right
  25. what movement produces respiration
    intercostal contraction
  26. snakes have a tendency to take ___ to ___ to exhale because they can handle higher levels of CO2
    seconds to minutes
  27. their eyelids are ___ to form the spectacle
    fused
  28. what is the anterior spectacle called that is shed during ecdysis?
    brille
  29. the iris contains ___ muscle allowing them to ___
    • striated
    • flash
  30. snakes have a wide range of ___
    vision
  31. the digestive system is a ___ tract
    linear
  32. their saliva contains more ____ ____ than a mammals so the digestion starts in the mouth
    digestive enzymes
  33. a venom gland is a modified ____ gland
    salivary
  34. the anus leads to the dorsal part of the cloaca called the ___
    copradeum
  35. digestion requires a ____ amount of energy
    large
  36. their digestive system has been known to ___ ___ when not in use, especially in the large snakes that dont need to eat as often
    shut down
  37. they have ___ kidneys
    bilateral
  38. which kidney is more cranial to the other?
    right is more cranial
  39. ureters empty into the __ in the cloaca
    urodeum
  40. snakes dont have a ___ just like birds
    bladder
  41. what is a snakes primary nitrogenous waste?
    uric acid
  42. fertilization is ___ and can be ___
    • internal
    • delayed
  43. males have 2 ___ testicles and a pair of ____ that are ___
    • ceolomic
    • hemipenes
    • inverted
  44. to sex a snake, they are ___ ___, if the probe goes further this means you are in the ____ of a ____
    • cloacally probed
    • hemipene
    • male
  45. snakes dont have a ___ making their eggs soft and leathery
    uterus
  46. 70% of snakes are oviparous, this includes the ___ and ___ snakes
    this also means they are born with an ___ ___
    • king
    • milk
    • egg tooth
  47. what are the 3 snakes that are ovoviviparous?
    BVG
    • boas
    • vipers
    • garter snakes
  48. snakes dont have a ____ membrane, but scales that serve the same fx
    tympanic
  49. snakes dont have an outer ___
    ear
  50. what 2 species have a pit for sensing body heat?
    PV
    • pythons
    • vipers

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