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Frog Dissection
Scientists believe
other vertebrates
evolved from BONY
LOBE-FINNED fish
AMPHIBIAN
CHARACTERISTICS
Moist, thin skin without scales
Aquatic larva changes to terrestrial adult
Feet without claws
Re...
http://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html
http://www.spekulantenguide.de/gifs/salamander...
FROG LATIN meaning
KINGDOM _____________
PHYLUM ____________________________
SUBPHYLUM ___________________________
CLASS _...
Thin, moist skin – no scales
Mucous glands make it
“slimy”
Camouflage- for protection
Some have poison glands
http://www-b...
BREATHING THROUGH SKIN is called
CUTANEOUS RESPIRATION
http://www.tvdsb.on.ca/westmin/science/snc2g1/frogresp.htm
ECTOTHERMIC
“cold blooded”
Body temperature is dependent on
surrounding environment
http://www.vanscyoc.net/randy/garden/w...
HIBERNATION/ ESTIVATION
Images from:
http://www.enc.org/Classroom_Calendar/CC_Units/Unit_Images/185.jpg
http://www.reptili...
Nictitating membrane
image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html
NO CLAWS
image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html
EXIT OPENINGS
DIGESTIVE WASTE (feces) =
_________________
Shared EXCRETORY &
REPRODUCTIVE EXIT =
_________________________...
EXIT OPENINGS
OPENING SHARED BY
EXCRETORY,
REPRODUCTIVE,
& DIGESTIVE =
______________VENT
http://www.student.loretto.org/z...
What sex is it?
Images from:
http://sps.k12.ar.us/massengale/frog_dissection.htm
AMPLEXUS
“firm embrace”
Sperm and egg released @ same time and place
Increases chances of fertilization
TONGUE attached at front not back like yours!
Imagse from:
http://www.animationlibrary.com
http://www.geocities.com/animal...
image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html
Muscular
Back of throat
Pulls ...
image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html
Connect ears
to back of throat
image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html
GLOTTIS
Opening to
respiratory...
Images from: http://sps.k12.ar.us/massengale/frog_dissection.htm
Image from; http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20
Laboratory/frog%20disse...
Females may have black & white eggs
Image from; http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/...
Pericardial membrane around heart
Mesentery holds intestines together
image from: http://www.spc.cc.tx.us/biology/jmckinne...
Mesentery holds intestines together
image from: http://www.manheimcentral.org/~tw005690/Frog/frog.htm
FAT BODIES
Store fat for
energy during
Hibernation
Estivation
Breeding
Image from: http://step.sdsc.edu/projects95/Frog.Di...
Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html
Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html
PYLORIC SPHINCTER
CONTROLS passage of food from stomach
into duodenum (intestine)
http://www.health.auckland.ac.nz/departm...
Gall Bladder
Image from: http://school.discovery.com/quizzes6/muskopf/frog.html
STOMACH:
LIVER:
GALL BLADDER
Make acid and digestive enzymes
Start digestion (grind up food)
Make bile
Store glycogen
Stor...
PANCREAS
Pancreas (enlarged)
PANCREAS:
Makes TRYPSIN, INSULIN, GLUCAGON
TRYPSIN- breaks down proteins
INSULIN- tells cells to store glucose from
bloods...
SPLEEN
Produces and stores new RBC’s and processes old
worn out ones
SMALL
INTESTINE
DUODENUM
Receives trypsin and bile;
finishes digestion
ILEUM
Absorbs nutrients
VILLI
Increase surface area...
LARGE
INTESTINE
Removes water from
digestive waste;
concentrates feces
http://www.flushing.k12.mi.us/srhigh/tippettl/biolo...
10 Body Systems :
___________________
Get rid of nitrogen waste made by cells
Nitrogen waste has different chemical forms:...
ALL WASTE is NOT THE SAME!
DIGESTIVE waste-
left over from undigested food
travels through digestive system
leaves through...
Diagram by: Riedell
Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html
KIDNEYS- Remove nitrogen waste from blood and
dilut...
URINARY BLADDER
http://www.manheimcentral.org/~tw005690/Frog/frog.htm
STORES URINE
MADE BY KIDNEYS
LARVAE (Tadpoles)
Excre...
CLOACA
DIGESTIVE
EXCRETORY
REPRODUCTIVE
LUNGS:
GAS
EXCHANGE
http://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/index.html
http://www.stclement.pvt.k12.il....
BREATHING WITH LUNGS is called
PULMONARY RESPIRATION
http://www.tvdsb.on.ca/westmin/science/snc2g1/frogresp.htm
Larvae breathe with GILLS
OVARIES
Make eggs
Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html
Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html
Carry eggs to cloaca
Add jelly coating
TESTES MAKE SPERM
http://step.sdsc.edu/projects95/Frog.Dissection/index.html
TESTES KIDNEY
AMPLEXUS
“firm embrace”
INDIRECT DEVELOPMENT
Grow legs; Lose tail
2 chambers  3 chambers
1 loop  2 loops
Breathe w/ gills  lungs & skin
Excrete...
Ways tadpoles are like fish
Have a LATERAL LINE
Breathe with gills
Excrete nitrogen waste as AMMONIA
(with gills & kidneys...
HEART
3 chambered heart
Right atrium
Left atrium
Ventricle
Image from: http://www.digitalfrog.com/resources/froggallery.ht...
Images from: http://www2.volstate.edu/msd/BIO/1020/Lab7ChordateII.htm
ADULT FROG:
3 chamber heart
2 loop system
TADPOLES &...
MOST vertebrates have nuclei
in their RBC’s
RBCs’ image from:
http://www.fish-news.com/RG4001.jpg
Human RBC image from:
ht...
Sinus
venosus
Atrium
Ventricle
Conus
arteriosus


BODY
organs


GILLS

FISH CIRCULATION
Sinus
venosus
RIGHT
Atrium
Ventricle
Conus
arteriosus




 Lungs
Body
organs
LEFT
Atrium






 
FROG CIRCUL...
Sinus
venosus
RIGHT
Atrium
Ventricle
Conus
arteriosus




 Lungs
Body
organs
LEFT
Atrium






 
FROG CIRCUL...
BRAIN
http://www.manheimcentral.org/~tw005690/Frog/frog.htm
Frog Dissection PowerPoint
Frog Dissection PowerPoint
Frog Dissection PowerPoint
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Transcript of "Frog Dissection PowerPoint"

  1. 1. Frog Dissection
  2. 2. Scientists believe other vertebrates evolved from BONY LOBE-FINNED fish
  3. 3. AMPHIBIAN CHARACTERISTICS Moist, thin skin without scales Aquatic larva changes to terrestrial adult Feet without claws Respiration with gills, lungs, skin, mouth Closed 2 loop circulation Ectothermic (cold blooded) Eggs without shells or multicellular membranes
  4. 4. http://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html http://www.spekulantenguide.de/gifs/salamanderw.jpg
  5. 5. FROG LATIN meaning KINGDOM _____________ PHYLUM ____________________________ SUBPHYLUM ___________________________ CLASS _______________________________ ORDER _____________________________ ANIMALIA CHORDATA VERTEBRATA “backbone” AMPHIBIA “double life” ANURA “without a tail”
  6. 6. Thin, moist skin – no scales Mucous glands make it “slimy” Camouflage- for protection Some have poison glands http://www-binf.bio.uu.nl/dutilh/hall/kikkers.html
  7. 7. BREATHING THROUGH SKIN is called CUTANEOUS RESPIRATION http://www.tvdsb.on.ca/westmin/science/snc2g1/frogresp.htm
  8. 8. ECTOTHERMIC “cold blooded” Body temperature is dependent on surrounding environment http://www.vanscyoc.net/randy/garden/wildlife/image4.htm
  9. 9. HIBERNATION/ ESTIVATION Images from: http://www.enc.org/Classroom_Calendar/CC_Units/Unit_Images/185.jpg http://www.reptilis.org/pyxi/image5.htm FAT stored in FAT BODIES provides energy
  10. 10. Nictitating membrane image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html
  11. 11. NO CLAWS image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html
  12. 12. EXIT OPENINGS DIGESTIVE WASTE (feces) = _________________ Shared EXCRETORY & REPRODUCTIVE EXIT = _____________________________ (Urine & eggs or Urine & sperm) ANUS UROGENITAL PORE
  13. 13. EXIT OPENINGS OPENING SHARED BY EXCRETORY, REPRODUCTIVE, & DIGESTIVE = ______________VENT http://www.student.loretto.org/zoology/Amphibians.htm
  14. 14. What sex is it? Images from: http://sps.k12.ar.us/massengale/frog_dissection.htm
  15. 15. AMPLEXUS “firm embrace” Sperm and egg released @ same time and place Increases chances of fertilization
  16. 16. TONGUE attached at front not back like yours! Imagse from: http://www.animationlibrary.com http://www.geocities.com/animalbio/biology.htm
  17. 17. image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html Muscular Back of throat Pulls food into digestive system
  18. 18. image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html Connect ears to back of throat
  19. 19. image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html GLOTTIS Opening to respiratory GULLET Opening to digestive
  20. 20. Images from: http://sps.k12.ar.us/massengale/frog_dissection.htm
  21. 21. Image from; http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20 Laboratory/frog%20dissection/frog%20dissection_files/frame.htm
  22. 22. Females may have black & white eggs Image from; http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20 Laboratory/frog%20dissection/frog%20dissection_files/frame.htm
  23. 23. Pericardial membrane around heart Mesentery holds intestines together image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html
  24. 24. Mesentery holds intestines together image from: http://www.manheimcentral.org/~tw005690/Frog/frog.htm
  25. 25. FAT BODIES Store fat for energy during Hibernation Estivation Breeding Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html
  26. 26. Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html
  27. 27. Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html
  28. 28. PYLORIC SPHINCTER CONTROLS passage of food from stomach into duodenum (intestine) http://www.health.auckland.ac.nz/departments/neurophysiology/public/teaching/alimentary_lectures/datashow/1-overview/gfx/pylorus.jpg
  29. 29. Gall Bladder Image from: http://school.discovery.com/quizzes6/muskopf/frog.html
  30. 30. STOMACH: LIVER: GALL BLADDER Make acid and digestive enzymes Start digestion (grind up food) Make bile Store glycogen Store vitamins Process toxins (including nitrogen waste) for kidneys Store bile
  31. 31. PANCREAS
  32. 32. Pancreas (enlarged)
  33. 33. PANCREAS: Makes TRYPSIN, INSULIN, GLUCAGON TRYPSIN- breaks down proteins INSULIN- tells cells to store glucose from bloodstream as glycogen GLUCAGON- tells cells to release stored glucose to blood stream
  34. 34. SPLEEN Produces and stores new RBC’s and processes old worn out ones
  35. 35. SMALL INTESTINE DUODENUM Receives trypsin and bile; finishes digestion ILEUM Absorbs nutrients VILLI Increase surface area http://biog-101-104.bio.cornell.edu/Biog101_104/tutorials/frog.html http://neuromedia.neurobio.ucla.edu/campbell/epithelium/wp_images/107%20villi.jpg
  36. 36. LARGE INTESTINE Removes water from digestive waste; concentrates feces http://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/largeintestine.html
  37. 37. 10 Body Systems : ___________________ Get rid of nitrogen waste made by cells Nitrogen waste has different chemical forms: ___________ __________ _____________ MOST TOXIC made from LEAST TOXIC ammonia by needs the least liver water to dilute FISH HUMANS BIRDS, REPTILES AMPHIBIANS EXCRETORY AMMONIA UREA URIC ACID
  38. 38. ALL WASTE is NOT THE SAME! DIGESTIVE waste- left over from undigested food travels through digestive system leaves through digestive system as feces EXCRETORY waste- (Also called NITROGEN WASTE) made by cells from break down of proteins travels through blood stream leaves through excretory system as ammonia, urea, or uric acid
  39. 39. Diagram by: Riedell
  40. 40. Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html KIDNEYS- Remove nitrogen waste from blood and dilute it with water to make urine; osmoregulation
  41. 41. URINARY BLADDER http://www.manheimcentral.org/~tw005690/Frog/frog.htm STORES URINE MADE BY KIDNEYS LARVAE (Tadpoles) Excrete AMMONIA like fish Adult frogs excrete UREA to conserve water
  42. 42. CLOACA DIGESTIVE EXCRETORY REPRODUCTIVE
  43. 43. LUNGS: GAS EXCHANGE http://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/index.html http://www.stclement.pvt.k12.il.us/studentWeb/science98/GarrittPatM/alveoli.gif
  44. 44. BREATHING WITH LUNGS is called PULMONARY RESPIRATION http://www.tvdsb.on.ca/westmin/science/snc2g1/frogresp.htm
  45. 45. Larvae breathe with GILLS
  46. 46. OVARIES Make eggs Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html
  47. 47. Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html Carry eggs to cloaca Add jelly coating
  48. 48. TESTES MAKE SPERM http://step.sdsc.edu/projects95/Frog.Dissection/index.html
  49. 49. TESTES KIDNEY
  50. 50. AMPLEXUS “firm embrace”
  51. 51. INDIRECT DEVELOPMENT Grow legs; Lose tail 2 chambers  3 chambers 1 loop  2 loops Breathe w/ gills  lungs & skin Excrete ammonia  excrete urea (gills & kidneys) (kidneys) http://saczoo.com/3_kids/images
  52. 52. Ways tadpoles are like fish Have a LATERAL LINE Breathe with gills Excrete nitrogen waste as AMMONIA (with gills & kidneys) Have a 2 chamber heart Have a 1 loop circulatory system
  53. 53. HEART 3 chambered heart Right atrium Left atrium Ventricle Image from: http://www.digitalfrog.com/resources/froggallery.html
  54. 54. Images from: http://www2.volstate.edu/msd/BIO/1020/Lab7ChordateII.htm ADULT FROG: 3 chamber heart 2 loop system TADPOLES & FISH: 2 chambered heart 1 loop system
  55. 55. MOST vertebrates have nuclei in their RBC’s RBCs’ image from: http://www.fish-news.com/RG4001.jpg Human RBC image from: http://www.nigms.nih.gov/moleculestomeds/images/bloodcells.gif MAMMALS DON’T
  56. 56. Sinus venosus Atrium Ventricle Conus arteriosus   BODY organs   GILLS  FISH CIRCULATION
  57. 57. Sinus venosus RIGHT Atrium Ventricle Conus arteriosus      Lungs Body organs LEFT Atrium         FROG CIRCULATION
  58. 58. Sinus venosus RIGHT Atrium Ventricle Conus arteriosus      Lungs Body organs LEFT Atrium         FROG CIRCULATION
  59. 59. BRAIN http://www.manheimcentral.org/~tw005690/Frog/frog.htm
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