Biology unit 7 organ systems frog dissection notes

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Transcript of Biology unit 7 organ systems frog dissection notes

BIOLOGY

Unit 7:Frog Notes

(1) The Head• Ears:

– Thin membrane circles near eyes.– Allow for hearing.

• Vomerine Teeth:– Small, swollen bumps.– Roof of inside mouth, by nose.– Help hold prey.

• Maxillary Teeth:– Sharper bumps.– Roof of inside mouth.– Help tear flesh.

(2) The Chest• Heart:

– Hard, red-brown nugget– Circulate blood.– Center of chest in between lungs, above liver.

• Lungs:– Bring in oxygen gas, and release carbon dioxide

gas.– Sides of heart within chest.

(3) The Upper Abdomen• Liver:

– Gray-ish colored lobes (looks like lungs)– Break down misfunctioning blood cells, metabolize

toxins and fats.– Center of chest, under heart and lungs.

• Stomach:– Flesh-colored sack or tube– Metabolize food.– Left side of frog (your right side), under liver.

(4) The Lower Abdomen• Intestines:

– Flesh-colored tube– Absorb food nutrients + excrete waste– Connected to stomach.

• Cloaca:– Multipurpose Hole Sperm/Eggs, Urine and Fecal

Matter all come out of here.– End of Intestine + Exiting Waste Hole.

(5) Fat Bodies• Yellow-ish squiggly noodles

• Additional energy storage + body heat.

• Sides of body (internal), along abdomen.

Yes you need to draw this!!

Male Parts(Do NOT have to identify)

• Sperm

• Testes

• Cloaca

Female Parts(Do NOT have to identify)

• Eggs

• Ovaries

• Cloaca

External (Ventral):

External (Dorsal):

External (Lateral):

Mouth:

Mouth (Teeth):

Mouth (Teeth):

Eustachian Tubes:

Nostrils:

Through the Skin:

Through the Muscle:

More Internal:

Heart:

Liver & Gall Bladder: