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Nares
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Definition
Nictitating Membrane
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Frog Dissection
| Definition | Definition |
|---|---|
| Nares | Nostrils |
| Nictitating Membrane | Provide a protective layer over their eye. (keep stuff from getting in them. |
| Eye | Used to see (almost 180 degrees). |
| Snout | Used to breathe air while floating on the surface of the water and on land. |
| Trunk | Forms walls for the coelom. |
| Tympanum | Used to hear above and below water. |
| Digits | Used to help the frog cling on to wet leaves and other smooth surfaces. |
| Brachium | Upper arm |
| Antebrachium | Providing body support during sitting or walking, and/or the absorption of impact forces during landing. |
| Colocal Opening | Opening of cloaca through which undigested food, urine, eggs, and sperm are passed. |
| Mouth | Traps insect to be eaten. |
| Dorsolateral | it is a way to increase body surface for gas exchange. |
| Thumb Pad | Improve grip on their mates. |
| Heart | Pumps blood to organs throughout the body. |
| Lungs | Help the frog breathe when being active. |
| Liver | Produces most of the plasma proteins and stores valuable commodities. |
| Gallbladder | Stores the bile produced by the liver. |
| Pancreas | Secretes enzymes and passes them into the small intestine which helps in the breakdown of food with insulin. |
| Stomach | Stores food and mixes it with enzymes to begin digestion. |
| Small Intestine | Digests and absorbs digested food. |
| Large Intestine | Store undigested food. |
| Urinary Bladder | Collects and stores urine until released. |
| Kidneys | Excretes urine. |
| Testes | Produces sex cells. |
| Ovaries | Produces eggs. |
| Oviducts | Carries eggs from the ovaries to the cloaca. |
| Eggs | The male releases sperm onto the eggs and fertilizes them. (develop into frogs) |
| Spleen | Makes, stores, and destroys blood cells. |
| Fat Bodies | Energy stores. |
| Tongue | Catches prey. |
| Volmerine Teeth | Grabs onto food with the assistance of the tongue. |
| Maxillary Teeth | Folds prey. |
| Maxilla | The upper jaw (holds captured prey). |
| Eustachian Tube Opening | Equalizes pressure in the inner ear while the frog is swimming. |
| Vocal Sacs (male) | Allows males to call to other frogs. |
| Glottis | Valve controls airflow in and out of the respiratory passages. |
| Esophagus | Allows food to go through the mouth to the stomach. |
| Are frogs acoelomates, coelomates or pseudocoelomates ? | Coelomates |
| Is fertilization external or internal? | External |
| What is the difference between a cloaca and a anus? | The anus excrete undigested waste, The cloaca excretes urine. |
| What ecological value of frogs ( must have 3). | They control the insect population, they are a food source for larger animals and they keep waterways clean. |
| How many different species of frogs are there? | Over 5,000 |
| Describe the methods of respiration for a frog. | A frog has three respiratory surfaces on its body that it uses to exchange gas with the surroundings: the skin, in the lungs, and on the lining of the mouth. |
| What is the difference between a frog and a toad? | frogs have longer legs and smooth backs, toads have shorter legs and bumpy backs. |
Created by:
maryssadrummond