INTESTINE SMALL INTESTINE LARGE INTESTINE Split up intestine
INTESTINE SMALL INTESTINE LARGE INTESTINE Split up intestine functions Image by Riedell/VanderWal2006 SMALL INTESTINE Bile/trypsin added Finish digesting Absorb nutrients
VILLI-increase surface area for more absorption http://neuromedia.neurobio.ucla.edu/campbell/epithelium/wp_images/107%20villi.jpg Image by Riedell/VanderWal2006 LARGE INTESTINE Removes water from feces Collects/
concentrates digestive waste Image by Riedell/VanderWal2006 SMALL INTESTINE DUODENUMAdd bile/trypsin Finish digestion ILEUMFinish digestion Absorb
nutrients Image by Riedell/VanderWal2006 CLOAC SharedA collecting space for Image by Riedell/VanderWal2006 DIGESTIVE
EXCRETORY REPRODUCTIVE SYSTEMS STOMACH Whats for lunch? Cut open your stomach
Image by Riedell/VanderWal2006 STOMACH RUGAERough folds inside stomach allow expansion help to break Image by Riedell/VanderWal2006
SPLEEN BLOOD CELL FACTORY Makes, stores, processes worn out red blood cells Image by Riedell/VanderWal2006 10 Body Systems :
___________________ EXCRETORY Get rid of nitrogen waste made by cells Nitrogen waste has different chemical forms: ___________ AMMONIA __________ _____________ UREA
URIC ACID MOST TOXIC made from LEAST TOXIC ammonia by needs the least liver water to dilute FISH HUMANS BIRDS, REPTILES
AMPHIBIANS ALL WASTE is NOT THE SAME! DIGESTIVE wasteleft 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
KIDNEYSRemove nitrogen waste from blood and dilute it with water to make urine; Osmoregulation Image by Riedell/VanderWal2006 Adult frogs excrete
as UREA TO CONSERVE WATER URINARY BLADDER STORES URINE MADE BY KIDNEYS LARVAE (Tadpoles) Excrete AMMONIA like fish Adult frogs excrete UREA to conserve water
Image by Riedell/VanderWal2006 CLOAC SharedA collecting space for Image by Riedell/VanderWal2006 DIGESTIVE EXCRETORY REPRODUCTIVE
SYSTEMS OVARIES Make eggs Image by Riedell/VanderWal2006 Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html Carry eggs to cloaca
Add jelly coating OVARY without eggs Image by Riedell/VanderWal2006 TESTES-makes sperm VAS DEFERENS-tubules that carry sperm to cloaca Image by Riedell/VanderWal2006
AMPLEXUS firm embrace Sperm and egg released @ same time and place Increases chances of external fertilization Image from: http://portal.isis.org/partners/AARK/YOTF%20Campaign%20Pack%20images/Forms/DispForm.aspx?ID=336 INDIRECT DEVELOPMENT http://saczoo.com/3_kids/images
makes THYROXIN to control heart rate, metabolism, and METAMORPHOSIS 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 http://upload.wikimedia.org/wikipedia/en/thumb/c/c7/L.littlejohni_tadpole.jpg/800px-L.littlejohni_tadpole.jpg image from: http://www.spc.cc.tx.us/biology/jmckinney/Studyimages/frog/frogdissectlist.html Pericardial membrane around heart Image by Riedell/VanderWal2006
LUNGS: GAS EXCHANGE http://www.stclement.pvt.k12.il.us/studentWeb/science98/GarrittPatM/alveoli.gif http://www.tvdsb.on.ca/westmin/science/snc2g1/frogresp.htm BREATHING WITH LUNGS is called PULMONARY RESPIRATION Frogs PUSH AIR INTO LUNGS = POSITIVE PRESSURE
Larvae breathe with GILLS http://upload.wikimedia.org/wikipedia/en/thumb/c/c7/L.littlejohni_tadpole.jpg/800px-L.littlejohni_tadpole.jpg Image by Riedell/VanderWal2006 HEART 3 chambers 2 loops
HEART 3 chambered heart Right atrium Left atrium Ventricle Image from: http://www.digitalfrog.com/resources/froggallery.html 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 RBCs RBCs image from:
http://www.fish-news.com/RG4001.jpg Human RBC image from: http://www.nigms.nih.gov/moleculestomeds/images/bloodcells.gif MAMMALS DONT Sinus venosus
BODY organs Atrium GILLS
Ventricle Conus arteriosus FISH CIRCULATION Sinus venosus
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