1. Eye – to see (Nictitating Membrane: clear eyelid that covers eye

2. Tympanic Membrane (Tympanum) – to hear

3. Hind Leg - jump

4. External Nare - breath

5. Mouth - eat

6. Front Leg – movement

7. Nares - breath

8. Maxillary teeth – hold prey

9. Vomerine teeth – chew prey

10. Tongue – capture prey

Vomerine – chew the prey. Maxillary teeth hold the prey

Capture prey with their tongue. USE THEIR EYES to push food in their gullet.

EXTERNAL STRUCTURES OF THE FROG - DAY 1

11. Eustachian tube – equalize pressure

REVIEW:How does the frog eat?

• Look inside his mouth.• What are the two pads on the roof of his

mouth?• He uses his EYES to push the food down into

his gullet. (his tongue is connected in the front of his mouth – so he can’t use it to push down food like we do)

Internal Anatomy – DAY 2

4. LIVERDraw in the gall bladder

9.HEART3. LUNGSUse the CIRCULATORY SYSTEM graphic flow chart

to illustrate the flow of blood through the frog

CIRCULATORY SYSTEM

LUNGS

OUT TO BODY

FROM BODY

From body Right Atrium Ventricle LUNGS Left Atrium Ventricle out to body

DETERMINE GENDER – DAY 3

• IF YOU FIND BLACK AND WHITE SMALL BALLS INSIDE THE FROG – THESE ARE EGGS.– Congratulations you have a GIRL!!!!

IF YOU HAVE 2 SMALL KIDNEY BEAN SHAPED ORGANS LOCATED NEAR THE SPINE – congratulations you have a BOY!!!

INTERNAL ANATOMY – DAY 3DIGESTIVE SYSTEM

1 – GULLET2 – ESOPHAGUSFind the pancreas – located near the back of the

stomach, it looks like a think ribbon10 – STOMACHOpen up the stomach by cutting at the top and

bottom of it. Put your scissors inside the cut and it open to reveal what is inside

INTERNAL ANATOMY – DAY 3DIGESTIVE SYSTEM

12 – SMALL INTESTINEFind the connection where the small intestine and the

large intestine connect13 – LARGE INTESTINE – do not cut this…it contains

poop11 – MESENTERY – connective tissue that keeps all

internal organs together 14 – SPLEEN – draw in the spleen in the mesentery by

the small intestine – removes old blood cells

FILL IN THE DIAGRAM• Use the information you have gathered to fill in the diagrams

for the digestive system on your note packet.

LIFE CYCLE

• USE WHAT YOU KNOW TO FILL IN THE LIFE CYCLE DIAGRAM ON THE BACK OF YOUR DISSECTION PACKET.

EXCRETORY SYSTEM

• FIND THE KIDNEYS (maroon/red structures near the frog’s spine)

• 5 – KIDNEY• 7 – URETER• 8 – BLADDER• 6 – CLOACA• USE WHAT YOU KNOW TO FILL IN THE

EXCRETORY SYSTEM DIAGRAM ON THE BACK OF YOUR PACKET

EXCRETORY SYSTEM

URETER

URETER