Frog DissectionFrog Dissection
TEKS 7.12B identify the main functions of the systems of the human organism including the circulatory, respiratory, skeletal, muscular,
digestive, excretory, reproductive, integumentary, nervous and endocrine
systems
Dorsal
Ventral
External Structures & Mouth
Upper eye lid
Nictitating membrane
Tympanic membrane (eardrum)
External nares
Forked tongue
Point of attachment for tongue
Internal nares
Vomerine teeth
Maxillary teeth of upper jaw
Eustachian tubes
Glottis
Gullet
First cut
First cut
First cut
Insert scissors under skin only!!
First cut
Transverse cuts
Transverse cuts
Cutting through the muscles
Cutting through the muscles
Insert scissors under muscles
only!!
Cut carefully through the clavicle
Transverse cuts
Transverse cuts
Cut off flaps of skin & muscle
Heart with Heart with pericardial pericardial
sacksack
Ventricle
Right atrium
Left atrium Aorta
3 lobes of the liver
3 lobes of the liver
Gall bladder
Gall bladder
Stomach
Pancreas
Small intestine
coils of small intestine
Large intestine
Urinary bladder
Large intestine
Spleen
Fat Bodies
Cut at top of
stomach
Cut at bottom of stomach
Lung
Lung
NOTE: Place a syringe or pipette
in the throat of the frog & try to
inflate the lungs.
Longitudinally cut stomach open
Rugae in stomach lining
Kidney
Ovary
Oviduct
Heart
Kidneys
Lungs
Heart
Fat bodies
Lungs
Large intestine
Small intestine
Spleen
Urinary bladder
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