ncert surendranaduthila

1. trunk Head Eye Tail ? Neck ?

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

10. Diagrammatic Representation of Internal Organs of frog showing complete digestive system

12. image from: http://www.spc.cc.tx.us/biology/jmckinney/ Studyimages /frog/frogdissectlist.html GLOTTIS Opening to respiratory GULLET Opening to digestive

14. PANCREAS

15. Pancreas (enlarged)

21. LUNGS:- Pulmonary Respiration 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 On Land Buccal cavity skin and Lungs –Respiratory organs

22. Larvae breathe with GILLS

23. Circulatory System Well developed closed type It includes heart, blood vessels and blood Heart :- Muscular, three chambered covered by pericardium

26. Sinus venosus RIGHTAtrium Vent ricle Con us arter iosus      Lungs Body organs LEFT Atrium          FROG CIRCULATION

28. MOST vertebrates have nuclei in their RBC’s MAMMALS DON’T Frog blood composed of Plama, RBC, WBC and plateletts

29. Sinus venosus RIGHTAtrium Vent ricle Con us arter iosus      Lungs Body organs LEFT Atrium          FROG CIRCULATION

31. 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

32. 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