Frog dissection
Download
1 / 62

Frog Dissection - PowerPoint PPT Presentation


  • 460 Views
  • Updated On :

Frog Dissection. Scientists believe other vertebrates evolved from BONY LOBE-FINNED fish. Scientific American; Dec 2005; Vol 293; p100-107. AMPHIBIAN CHARACTERISTICS. Moist, thin skin without scales Aquatic larva changes to terrestrial adult Feet without claws

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Frog Dissection' - Mia_John


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Slide3 l.jpg

Scientists believe other vertebrates evolved from BONY LOBE-FINNED fish


Slide4 l.jpg

Scientific American; Dec 2005; Vol 293; p100-107


Amphibian characteristics l.jpg
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


Slide6 l.jpg

http://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.htmlhttp://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html

http://www.spekulantenguide.de/gifs/salamanderw.jpg


Slide7 l.jpg
FROGhttp://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html

ANIMALIA

LATIN meaning

KINGDOM _____________

PHYLUM ____________________________

SUBPHYLUM ___________________________

CLASS _______________________________

ORDER _____________________________

CHORDATA

VERTEBRATA “backbone”

AMPHIBIA “double life”

ANURA “without a tail”


Slide8 l.jpg

Thin, moist skin – no scaleshttp://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html

Mucous glands make it “slimy”

Camouflage- for protection

Some have poison glands

http://www-binf.bio.uu.nl/dutilh/hall/kikkers.html


Slide9 l.jpg

http://www.tvdsb.on.ca/westmin/science/snc2g1/frogresp.htmhttp://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html

BREATHING THROUGH SKIN is called CUTANEOUS RESPIRATION


Ectothermic cold blooded l.jpg
ECTOTHERMIChttp://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html“cold blooded”

Body temperature is dependent on surrounding environment

http://www.vanscyoc.net/randy/garden/wildlife/image4.htm


Hibernation estivation l.jpg
HIBERNATION/ ESTIVATIONhttp://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html

FAT stored in FAT BODIES provides energy

Images from:

http://www.enc.org/Classroom_Calendar/CC_Units/Unit_Images/185.jpg

http://www.reptilis.org/pyxi/image5.htm


Slide12 l.jpg

Nictitating membranehttp://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html

image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html


Slide13 l.jpg

NO CLAWShttp://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html

image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html


Exit openings l.jpg
EXIT OPENINGShttp://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html

ANUS

DIGESTIVE WASTE (feces) =

_________________

Shared EXCRETORY & REPRODUCTIVE EXIT =

_____________________________

(Urine & eggs or Urine & sperm)

UROGENITAL PORE


Exit openings15 l.jpg
EXIT OPENINGShttp://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html

OPENING SHARED BY

EXCRETORY,

REPRODUCTIVE,

& DIGESTIVE =

______________

VENT

http://www.student.loretto.org/zoology/Amphibians.htm


What sex is it l.jpg
What sex is it?http://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html

Images from:

http://sps.k12.ar.us/massengale/frog_dissection.htm


Amplexus firm embrace l.jpg
AMPLEXUShttp://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html“firm embrace”

Sperm and egg released @ same time and place

Increases chances of fertilization


Slide19 l.jpg

Imagse from:http://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.html

http://www.animationlibrary.com

http://www.geocities.com/animalbio/biology.htm

TONGUE attached at front not back like yours!


Slide20 l.jpg

image from: http://www.spc.cc.tx.us/biology/jmckinney/http://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.htmlStudyimages/frog/frogdissectlist.html

Muscular

Back of throat

Pulls food into

digestive system


Slide21 l.jpg

image from: http://www.spc.cc.tx.us/biology/jmckinney/http://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.htmlStudyimages/frog/frogdissectlist.html

Connect ears

to back of throat


Slide22 l.jpg

image from: http://www.spc.cc.tx.us/biology/jmckinney/http://users.erols.com/jkimball.ma.ultranet/BiologyPages/V/Vertebrates.htmlStudyimages/frog/frogdissectlist.html

GLOTTIS

Opening to

respiratory

GULLET

Opening to digestive


Slide23 l.jpg

Images from: http://sps.k12.ar.us/massengale/frog_dissection.htm


Slide24 l.jpg

Image from; http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20 Laboratory/frog%20dissection/frog%20dissection_files/frame.htm


Slide25 l.jpg

Image from; http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20 Laboratory/frog%20dissection/frog%20dissection_files/frame.htm

Females may have black & white eggs


Slide26 l.jpg

image from: http://www.spc.cc.tx.us/biology/jmckinney/ http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20Studyimages/frog/frogdissectlist.html

Pericardial membrane around heart

Mesentery holds intestines together


Slide27 l.jpg

image from: http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20http://www.manheimcentral.org/~tw005690/Frog/frog.htm

Mesentery holds intestines together


Fat bodies l.jpg
FAT BODIES http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20

Store fat for energy during

Hibernation

Estivation

Breeding

Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html


Slide29 l.jpg

Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html


Slide30 l.jpg

Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html


Slide31 l.jpg

http://www.health.auckland.ac.nz/departments/neurophysiology/public/teaching/alimentary_lectures/datashow/1-overview/gfx/pylorus.jpg

PYLORIC SPHINCTER

CONTROLS passage of food from stomach

into duodenum (intestine)


Gall bladder l.jpg
Gall Bladder http://www.health.auckland.ac.nz/departments/neurophysiology/public/teaching/alimentary_lectures/datashow/1-overview/gfx/pylorus.jpg

Image from: http://school.discovery.com/quizzes6/muskopf/frog.html


Slide33 l.jpg

Make acid and digestive enzymes http://www.health.auckland.ac.nz/departments/neurophysiology/public/teaching/alimentary_lectures/datashow/1-overview/gfx/pylorus.jpg

Start digestion (grind up food)

STOMACH:

LIVER:

GALL BLADDER

Make bile

Store glycogen

Store vitamins

Process toxins (including nitrogen waste) for kidneys

Store bile


Slide34 l.jpg

PANCREAS http://www.health.auckland.ac.nz/departments/neurophysiology/public/teaching/alimentary_lectures/datashow/1-overview/gfx/pylorus.jpg


Pancreas enlarged l.jpg
Pancreas (enlarged) http://www.health.auckland.ac.nz/departments/neurophysiology/public/teaching/alimentary_lectures/datashow/1-overview/gfx/pylorus.jpg


Slide36 l.jpg

Makes TRYPSIN, INSULIN, GLUCAGON http://www.health.auckland.ac.nz/departments/neurophysiology/public/teaching/alimentary_lectures/datashow/1-overview/gfx/pylorus.jpg

PANCREAS:

TRYPSIN- breaks down proteins

INSULIN- tells cells to store glucose from

bloodstream as glycogen

GLUCAGON- tells cells to release stored

glucose to blood stream


Spleen l.jpg
SPLEEN http://www.health.auckland.ac.nz/departments/neurophysiology/public/teaching/alimentary_lectures/datashow/1-overview/gfx/pylorus.jpg

Produces and stores new RBC’s and processes old worn out ones


Slide38 l.jpg

http://biog-101-104.bio.cornell.edu/Biog101_104/tutorials/frog.htmlhttp://biog-101-104.bio.cornell.edu/Biog101_104/tutorials/frog.html

SMALL INTESTINE

DUODENUM

Receives trypsin and bile; finishes digestion

ILEUM

Absorbs nutrients

VILLI

Increase surface area

http://neuromedia.neurobio.ucla.edu/campbell/epithelium/wp_images/107%20villi.jpg


Slide39 l.jpg

http://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/largeintestine.htmlhttp://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/largeintestine.html

LARGE INTESTINE

Removes water from digestive waste;

concentrates feces


10 body systems l.jpg
10 Body Systems http://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/largeintestine.html:

EXCRETORY

___________________

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

AMMONIA

UREA

URIC ACID


All waste is not the same l.jpg
ALL WASTE is NOT THE SAME!http://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/largeintestine.html

DIGESTIVE waste-left over from undigested foodtravels 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


Diagram by riedell l.jpg
Diagram by: Riedellhttp://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/largeintestine.html


Slide43 l.jpg

KIDNEYS- http://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/largeintestine.htmlRemove nitrogen waste from blood and dilute it with water to make urine; osmoregulation

Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html


Urinary bladder l.jpg

URINARY BLADDERhttp://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/largeintestine.html

STORES URINE

MADE BY KIDNEYS

LARVAE (Tadpoles)

Excrete AMMONIA like fish

Adult frogs excrete

UREA to conserve water

http://www.manheimcentral.org/~tw005690/Frog/frog.htm


Cloaca l.jpg
CLOACAhttp://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/largeintestine.html

DIGESTIVE

EXCRETORY

REPRODUCTIVE


Slide46 l.jpg

http://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/index.htmlhttp://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/index.html

LUNGS:

GASEXCHANGE

http://www.stclement.pvt.k12.il.us/studentWeb/science98/GarrittPatM/alveoli.gif


Slide47 l.jpg

http://www.tvdsb.on.ca/westmin/science/snc2g1/frogresp.htmhttp://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/index.html

BREATHING WITH LUNGS is called PULMONARY RESPIRATION


Larvae breathe with gills l.jpg
Larvae breathe with GILLShttp://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/index.html


Slide49 l.jpg

OVARIEShttp://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/index.html

Make eggs

Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html


Slide50 l.jpg

Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html

Carry eggs to cloaca

Add jelly coating


Testes l.jpg

MAKE SPERM http://step.sdsc.edu/projects95/Frog.Dissection/index.html

TESTES

http://step.sdsc.edu/projects95/Frog.Dissection/index.html


Testes kidney l.jpg
TESTES KIDNEY http://step.sdsc.edu/projects95/Frog.Dissection/index.html


Amplexus firm embrace53 l.jpg
AMPLEXUS http://step.sdsc.edu/projects95/Frog.Dissection/index.html“firm embrace”


Indirect development l.jpg
INDIRECT DEVELOPMENT http://step.sdsc.edu/projects95/Frog.Dissection/index.html

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


Ways tadpoles are like fish l.jpg
Ways tadpoles are like fish http://step.sdsc.edu/projects95/Frog.Dissection/index.html

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


Heart l.jpg
HEART http://step.sdsc.edu/projects95/Frog.Dissection/index.html

3 chambered heart

Right atrium

Left atrium

Ventricle

Image from: http://www.digitalfrog.com/resources/froggallery.html


Slide57 l.jpg

Images from: http://www2.volstate.edu/msd/BIO/1020/Lab7ChordateII.htm

TADPOLES & FISH: 2 chambered heart

1 loop system

ADULT FROG:

3 chamber heart

2 loop system


Most vertebrates have nuclei in their rbc s l.jpg
MOST vertebrates have nuclei in their RBC’s http://www2.volstate.edu/msd/BIO/1020/Lab7ChordateII.htm

MAMMALS DON’T

RBCs’ image from: http://www.fish-news.com/RG4001.jpg

Human RBC image from: http://www.nigms.nih.gov/moleculestomeds/images/bloodcells.gif


Slide59 l.jpg

Sinus http://www2.volstate.edu/msd/BIO/1020/Lab7ChordateII.htm

venosus

BODYorgans

Atrium

GILLS

Conus

arteriosus

Ventricle

FISH CIRCULATION


Slide60 l.jpg

Sinus http://www2.volstate.edu/msd/BIO/1020/Lab7ChordateII.htm

venosus

Bodyorgans

RIGHTAtrium

LEFTAtrium

Lungs

Conus

arteriosus

Ventricle

FROG CIRCULATION


Slide61 l.jpg

Sinus http://www2.volstate.edu/msd/BIO/1020/Lab7ChordateII.htm

venosus

Bodyorgans

RIGHTAtrium

LEFTAtrium

Lungs

Conus

arteriosus

Ventricle

FROG CIRCULATION


Slide62 l.jpg

BRAIN http://www2.volstate.edu/msd/BIO/1020/Lab7ChordateII.htm

http://www.manheimcentral.org/~tw005690/Frog/frog.htm


ad